?_FÿÿÿÿYê6-l¨hg/ Excel MacroæÌ.ÊKlPúm`(m`/&;)z4 %s%d: ÿÿ±ÿÿÿÿ|CTXOMAPæ|FONTÇå|SYSTEM|TOMAPzã|TOPICu|TTLBTREE*ê|TOPICubY nb½xnbt8nbO-nb nbÖ nbZŽnbT–nbÖ>nb{Unb¦Snbô¦nb£‹nb*)nbã©nb,¦nbß¼nbϲnbº^nbö nbñ˜nb·¶nbe²nb ®nbà nbD nbl§nb'©nbé¥nbú­nbk·nbZ¬nb¾¤nb÷µnbŸSnbðZnb)6nb_ƒnbnb nbnbqUnb4nb~=nb•Ÿnb8Vnb5SnbS_nb,nb›6nbõ³nbâ¾nbã>nb„“nbænb÷nb:nb´ nb‹nb¼nba–nbænbvžnb0nb£onbànbÊúnb Rnbê8nbnb\nb¸“nbÔnb…pnbÛŠnb“€nb3Ênbnbd nbÙ6nbF nbBnbÅonbg:nbýžnbnbŸ¡nb¬ãnbðÈnbŽnb’nbœhnbìúnbå—nb®ÆnbÐ%nbbVnbnb¨>nbt«nbøsnbž(nbÇßüÞÿÿÿÿ ÿÿÿÿ!!!ËÿÿÿÿÿÿÿÿÛ!*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿA PUMP CONTROL VALVE is designed to eliminate the surges caused by the starting and stopping of the pump. There are two basic types: The Booster Pump Control Valve (OCV Series 125) is installed on the discharge of the pump in the main flow line. It is CLOSED when the pump starts and stops. The Deep Well Pump Control Valve (OCV Series 126) is installed in a bypass line and works in conjunction with a main line check valve. It is OPEN when the pump starts and ñ+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿstops. Either type is electrically interlocked with the pump starter and ensures that the pump starts and stops with NO flow into the system. _________________ A MODULATING FLOAT VALVE (OCV Series 8100) operates to hold the level in a tank or reservoir constant, by balancing inflow equal to outflow, or vice-versa. It utilizes a float-operated pilot which is mounted in the tank itself. The modulating float valve may be set up to control the flow either INTO or OUT OF the tank. "÷"+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿ_________________ An ON/OFF FLOAT VALVE (OCV Series 8000) operates as an automatic tank fill valve by opening at low level and closing at high level. It utilizes a float-operated pilot which is mounted in the tank itself. As the name implies, the on/off float valve operates either on or off. However, modulating pilots can be added which will throttle the valve under certain conditions. _________________ An ALTITUDE VALVE is a level control valve that does not utilize a float or other å"+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿdevice in the tank itself. Rather it operates by sensing the tank head. For this reason, it is particularly useful for elevated storage tanks. There are two basic types of altitude valves: The ONE-WAY flow, or SINGLE-ACTING type (OCV Series 3331), which only allows flow INTO the tank. Here, water is withdrawn from the tank through a separate lineNp or through a bypass around the altitude valve. The TWO-WAY flow, or DOUBLE-ACTING type (OCV Series 3333), which controls Ü+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿthe flow both INTO and OUT OF the tank. The altitude valve operates either full open or full closed. However, control pilots can be added which will modulate the valve under certain conditions. ________________ A PRESSURE REDUCING VALVE (OCV Series 127) modulates to maintain a constant DOWNSTREAM pressure despite fluctuations in demand or inlet pressure. Alternatively, it may be used to prevent the downstream pressure from exceeding a predetermined maximum. î+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿ_______________ A RATE OF FLOW CONTROL VALVE (OCV Series 120G) modulates to maintain the flow through it at a constant rate, despite fluctuations in either inlet or outlet pressure. Most often, it is used to prevent the flow rate from exceeding a predetermined maximum. The "sensor" for the rate of flow control is an orifice plate, integrally mounted in the valve inlet flange. ________________ A PRESSURE RELIEF VALVE, in general, is a valve that controls pressure at its inlet à("€€Ì.€‚‚‚‚‚‚‚ÿand is installed in a bypass off the main line. It typically exhausts to atmosphere, to a storage tank, or back to the suction side of the pump. Within the category of pressure relief valves are four types: 1. SURGE RELIEF VALVE: This valve is typically closed during normal operation, and opens only when it senses a pressure higher than its set point. As such, its purpose is to protect the line from surges and overpressures that might result from such factors as a EQ*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿpump start or a downstream valve closure. 2. FIRE PUMP RELIEF VALVE: A specialized surge relief valve designed for use on fire pumps in accordance with NFPA 20. It is listed by Underwriters Laboratories and approved by Factory Mutual Research for fire pump relief service. 3. SUR¬ ´ GE ANTICIPATION VALVE: This valve is particularly useful in protecting a system from surges that can occur from an electrical power failure while a pump is running. It opens immediately on power failure "in anticipation" of the surge that will ÜQ("€€Ì.€‚‚‚‚‚‚‚ÿoccur when the forward momentum of the flow dies out and the pressure wave returns. 4. BYPASS PRESSURE CONTROL VALVE: While this valve is physically identical to the surge relief valve, the bypass pressure control valve is open and controlling the pressure at its inlet during normal operation. As such, it is controlling system pressure much like a pressure reducing valve, except that it does so by diverting flow rather than removing pressure through friction. ++)$€€Ì.€‚‚‚‚‚‚‚‚ÿ______________ A PRESSURE SUSTAINING VALVE is physically the same as a pressure relief valve, and like the relief valve, controls pressure at its inlet. However, while the relief valve is installed in a bypass line and typically keeps the pressure from exceeding a given maximum, the pressure sustaining valve is installed in a main line and keeps the pressure from falling below a certain minimum. In other words, the pressure sustaining valve protects the supply side of the system from low pressure. é+*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿ Another use of the pressure sustaining valve is as a "hydraulic switching" valve. For example, you may be pumping out of a storage tank and want to flow when the pump is on, but not gravity feed when the pump is off. A pressure sustaining valve on the discharge of the pump, with a set point somewhere between tank head and pump discharge head, would automatically accomplish this goal. ______________ A SOLENOID CONTROL VALVE (OCV Series 115) is one of the simplest types of ê("€€Ì.€‚‚‚‚‚‚‚ÿcontrol valves, opening and closing in response to an electrical signal. It is a low-cost answer to motorized valves where on/off control is ne4G eded from a remote location. Included within this category are our most sophisticated control valves, the Series 22 and 88 electronic control valves. While operated by solenoids, they can be set up to control pressure, flow, level or any other parameter with a degree of accuracy, reliability, and versatility not found in other valves. DD)$€€Ì.€‚‚‚‚‚‚‚‚ÿ______________ A DIAPHRAGM CHECK VALVE (OCV Series 94), like other types of check valves (swing checks, wafer checks, etc.) has the singular purpose of opening to allow forward flow and closing to prevent reverse flow. The diaphragm check is somewhat more versatile than other types in that it can be fitted with speed controls to tailor its opening and closing to fit the requirements of the system. More often than not, the check valve function is combined with other functions (e.g.., pressure reducing). If you need another .D.' €€Ì.€‚‚‚‚‚‚ÿfunction beside the check, select that function. On pumps, the diaphragm check valve can generally outperform other types in preventing startup and shutdown surges. However, it is no substitute for a pump control valve (OCV Series 125) in this respect. !.!!ÿÿÿÿÿÿÿÿæ!*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿThe horizontal, SPLIT-CASE CENTRIFUGAL PUMP is one that includes both suction and discharge piping. It is often called a booster pump. The Series 125 is the correct pump control valve for this type of pump. ________________ The VERTICAL TURBINE PUMP is one in which the pumping element (impeller) is suspended below drive (motor) by the pump shaft. They may range from short-coupled versions with only a few feet of shaft, to deep well types with hundreds of feet of shaft. 'þ3)$€€Ì.€‚‚‚‚‚‚‚‚ÿTypically a bypass-type pump control valve (Series 126) is preferred on vertical turbines. However, depending on the length of the pump column and the construction of the pump itself, the Series 125 may bø×e used in certain cases. ________________ The FLOODED SUCTION TURBINE, also called a CANNED turbine, is one in which the impellers are surrounded by a chamber that is fed from suction piping. Used in this fashion, it becomes similar to a booster pump and would typically use the Series 125 pump &ù3&-,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿcontrol valve. ________________ The SUBMERSIBLE PUMP is one in which both the pumping element and the driver are submerged in the well, with the well piping column bringing the water to the surface. A bypass-type pump control valve (Series 126) is typically used unless the well is rather shallow. ________________ The POSITIVE DISPLACEMENT PUMP, as the name implies, is one that displaces a certain amount of fluid with each revolution, i.e., its output will remain essentially constant •q&•$€€Ì.€‚‚‚ÿregardless of back pressure imposed. For this reason, pump control valves are not recommended on PD pumps. !•!!›ÿÿÿÿÿÿÿÿD!D*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿThe primary purpose of the Series 125 is to reduce or eliminate the surges associated with starting or stopping the pump. Installed on the discharge of the pump, it accomplishes this purpose by GRADUALLY changing the flow rate into the system. In other words, the valve will open slowly AFTER the pump starts and close slowly BEFORE the pump stops. In the event of an electrical power failure, where the valve cannot go through its normal shutdown procedure, the 125 also acts as a conventional check valve, holding back flow 6D6#€€Ì.€‚‚ÿto a minimum. !6!!ºÿÿÿÿÿÿÿÿ6!B("€€Ì.€‚‚‚‚‚‚‚ÿIn addition to preventing pump startup and shutdown surges, the pump control valve should operate with a minimum amount of head loss while it is open. In this regard, the power-actuated pump control valve (Series 125-2) is unexcelled. With its dual diaphragm chambers, coupled with pilot e‘&²&‘&xhaust to atmosphere, the valve will always open FULLY regardless of flow rate. Drain provisions must be provided for the pilot exhaust on this valve. The amount of water discharged per cycle ranges from a few ounces on a 1.25" çB*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿvalve to 8 gallons on a 16" valve. On the other hand, the more economical standard 125 valve uses a single diaphragm chamber design and pilot exhaust is piped to the downstream side. The valve may not be full open at low to moderate flow rates, therefore may have a higher pressure drop than the 125-2. Finally, in many cases, modulating controls, such as pressure sustaining or pressure reducing, are added to the basic 125. In such cases, the standard construction is the F#F#€€Ì.€‚‚ÿobvious and necessary choice. !F!!ºÿÿÿÿÿÿÿÿ&ú!&,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿSeveral different modulating pilots can be added to the Model 125 to increase its utility. These functions are as follows: DISCHARGE PRESSURE SUSTAINING: This control will modulate the valve as required to prevent the pump discharge pressure from falling below a predetermined minimum. Simply stated, it will prevent the pump from "running away" or operating too far to the right on its curve. ________________ SUCTION PRESSURE SUSTAINING: This control will modulate the valve as required P&&P*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿto prevent the pump suction pressure from falling below a predetermined point. It can have special utility in keeping from over-pumping the supply or in preventing NPSH problems. NOTE: This function is only usable on split-case centrifugals and canned turbine pumps. ________________ RATE OF FLOW CONTROL: This control will modulate the valve as required to maintain a constant flow rate out of the pump, or, alternatively, to prevent the flow rate from exceeding a predetermined maximum. It is to be preferred over pressure sustaining îP#)$€€Ì.€’-â/K+‚‚‚‚‚‚‚‚ÿor pump differential control if the control point is in a relatively flat portion of the curve. ________________ PUMP DIFFERENTIAL CONTROL: This control senses both the pump suction and pump discharge pressures and modulates the valve to maintain a constant differential. It can be an ideal way of holding the pump at a given point on its curve, particularly where suction pressure can vary. For best results, the control point should be on a relatively steep portion of the curve. Ù#' €€Ì.€‚‚‚‚‚‚ÿ________________ PRESSURE REDUCING CONTROL: This control modulates the valve to maintain a constant system pressure, or alternatively, to prevent the system pressure from exceeding a predetermined maximum. !!!ÿÿÿÿÿÿÿÿùÊ!ù/0€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚‚‚ÿTo enter data in this dialog box: 1. Select the pump discharge size by clicking on the arrow of the list box and dragging to the correct size. 2. Select your units of FLOW measurement by clicking on the arrow of the list box and dragging to the correct units. 3. Type in the design flow rate in the highlighted box. 4. Select your units of PRESSURE measurement by clicking on the arrow of the list box and dragging to the correct units. !ù!!ÈÿÿÿÿÿÿÿÿÚ!+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿThis dialog box shows the comparison in pressure drops between the standard 125 and the power actuated 125 at the design flow rate, based on a valve the same size as the pump discharge. If the pressure drops are equal or very close, the standard 125 will be your most economical choice. If the pressure drop for the power-actuated 125 is at least 10% lower than the standard 125, you'll be money ahead in the long run by selecting the power-actuated version. ¢}¢%€€Ì.€‚‚‚‚ÿ Finally, remember that if you are going to add modulating controls to the valve, you will need the standard version. !¢-!ÚE7ç7ç7ÿÿÿÿÿÿÿÿ=-=+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿOCV offers three different check features on the Series 125. In choosing the check feature for your valve, keep in mind that it only comes into play in the event of an electrical power failure while the pump is running. 1. The STANDARD check feature provides for hydraulic closing of the valve after pressure reversal occurs. While this closing is relatively quick, a small amount of backflow will occur while the valve is closing. 2. The CONTROLLED CLOSING check feature is similar to the standard check feature, X/=X)$€€Ì.€‚‚‚‚‚‚‚‚ÿexcept that you can actually control the rate at which the valve closes when pressure reversal occurs. While this method can eliminate surges due to power failure, it will require a relatively large amount of backflow through the pump. The pump most be able to tolerate this backflow, and, what is more important, cannot be allowed to restart while backflow is occurring. 3. The LIFT CHECK feature incorporates a special two-piece diaphragm/seat assembly within the main valve. This allows the valve to seat off independent of the position of the óX%€€Ì.€‚‚‚‚ÿdiaphragm. Closing occurs at the moment that forward flow has been reduced to zero, and before back flow starts. Because closure occurs at the "zero momentum" condition, surges can actually be less than with the standard check feature. !!!^ÿÿÿÿÿÿÿÿõ!*)$€€Ì.€‚‚‚‚‚‚‚‚ÿThis dialog box will enable us to determine whether the 125 inline pump control or 126 bypass pump control is best for your particular pump. If the answer to either question is YES, simply click on the appropriate box. 1. As a rough rule of thumb, OCV recommends the 126 series valve if the suction lift is more than 50 feet. If you would still rather use the 125, simply don't check the box. In such cases, it is most important to add an appropriately sized air release valve on the well â= @Á=ì*' €€Ì.€‚‚‚‚‚‚ÿdischarge. 2. Check with your pump manufacturer on this one. Some turbine pumps are constructed so that it is better to start against a closed valve (125). With others, it is preferable to start with an open discharge (126). !!!øÿÿÿÿÿÿÿÿײ!×%€€Ì.€‚‚‚‚ÿPositive displacement pumps, by their very nature, do not lend themselves to much in the way of pump control. Fortunately, they aren't used much in water service, anyway! !×!!ÿÿÿÿÿÿÿÿõÊ!õ+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿOCV manufactures control valves in two different body styles: 1. The straight-through GLOBE style, with its inlet and outlet ports 180 degrees from each other. Suitable where the piping runs in the same direction on both sides of the valve. 2. The ANGLE style, with inlet and outlet ports 90 degrees from each other. Suitable where the piping must change direction. Using an angle valve can often save having to use a separate elbow fitting. !õ!!„ÿÿÿÿÿÿÿÿ=!=*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿThe non-dimmed sizes shown in this dialog box would be suitable for use on your pump, on the basis of the design flow rate you entered. Sizes smaller than those indicated would be subject to velocities in excess of the rated maximum of 20 ft/sec. Sizes larger than those indicated are really too large to do an adequate job of suppressing startup and shutdown surges. To select from the indicated sizes, figure out how much pressure drop you can allow, then pick the SMALLEST size commensurate with that pressure drop. &=&"€€Ì.€‚ÿ !&!!ÿÿÿÿÿÿÿÿá·!í*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿThe principles of operation of the Model 126 are pretty well explained in this dialog box. Another way of explaining it is that the 126 valve is effectively controlling the pump check valve in its speed of opening and closing. A bonus of the Model 126 i±FÒF±Fs that it discharges any air column when the pump starts and breaks any vacuum when the pump shuts down. Thus, a separate air release/vacuum breaker valve is not necessary. !í!!ÓÿÿÿÿÿÿÿÿÚ!,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe information in this dialog box will enable us to properly size your 126 valve. To use: 1. Determine what units you want to use for system static head. Click on the arrow of the list box and drag to the selected unit. 2. Similarly, determine and select what units will be used for flow rate. 3. Type in the amount of system static head in the highlighted box. 4. Press TAB on the keyboard. The box for flow rate will be highlighted. Type in the flow ¬ˆ¬$€€Ì.€‚‚‚ÿrate necessary to reduce the pump discharge head just BELOW system static head. This information can be found on your pump curve. !¬!!áÿÿÿÿÿÿÿÿÀ–!À*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿThe valve size shown is the SMALLEST valve that will reduce the pump head below static head and stay within velocity limitations, in this case 30 ft/sec. There is really no need to go larger in size. The pressure relief feature can be useful if it is necessary or desired to prevent the pump from running at shutoff head. In other words, it can assure a minimum pump flow under any condition. !À!!1ÿÿÿÿÿÿÿÿé!' €€Ì.€‚‚‚‚‚‚ÿThis dialog box will enable us to select the proper end connections for the valve and the pressure ratings of other components used on the valve. Select units and enter data the same way you did for the previous pump data. !!!Øÿÿÿÿÿÿÿÿ ã!)$€€Ì.€‚‚‚‚‚‚‚‚ÿThe non-dimmed choices give you an option for the material of the main valve body as well as the end connections. The pre-selected option button represents the MOST ECONOMICAL choice. However, it is recognized that you may have to select a different material or end con¤NÅN¤Nnection to match other piping components. Simply click on the desired option button then click OK (or push RETURN or ENTER on the keyboard). For reference, actual material specifications are as follows: ŸwŸ("€€Ì.€‚‚‚‚‚‚‚ÿ DUCTILE IRON: ASTM A536, Grade 65-45-12 CAST IRON: ASTM A126, Class B CAST STEEL: ASTM A216, Grade WCB !Ÿ!!Îÿÿÿÿÿÿÿÿ­ˆ!­%€€Ì.€‚‚‚‚ÿIn a control valve, "trim" refers to the metallic main valve seat. Choose bronze or stainless steel based on the given criteria. !­!!Õÿÿÿÿÿÿÿÿ´!´%€€Ì.€‚‚‚‚ÿControl pilots other than solenoid pilots are available in B62 bronze or stainless steel. Make your choice based on the given criteria. !´!!tÿÿÿÿÿÿÿÿS'!S,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿYour choices for the remainder of the pilot system are brass with copper tubing and all stainless steel. This includes the following components: • Pipe and tube fittings • Speed controls • Isolation ball valves • Solenoid pilots Make your choice based on the given criteria. !S!!×ÿÿÿÿÿÿÿÿ¶‘!¶%€€Ì.€‚‚‚‚ÿElastomers include diaphragms, resilient seats, and O-rings. Make your choice of the standard Buna-N or EPDM based on the given criteria. !¶!! ÿÿÿÿÿÿÿÿèÂ!è&€€Ì.€‚‚‚‚‚ÿThis dialog box explains the difference between the available internal coatings. Make your choice based on the aggressiveness of the water being handled and the severity of the service. !è!!ÿÿÿÿÿÿÿÿà»!à%€€Ì.€‚‚‚‚ÿAs explained, it is rare that you would ever need more than the standard external coating of 4-mil epoxy plus enamel. A possible exception would be if the valve will be submerged. !à!!Uÿÿÿÿÿÿÿÿ(!4' €€Ì.€‚‚‚‚‚‚ÿPick the solenoid voltage based on the circuit that will be controtW•WtWlling the valve. On pump control valves (OCV series 125 AND 126), this voltage should match the voltage in the circuit that CONTROLS the pump, NOT the voltage that powers the pump. !4!!‚ÿÿÿÿÿÿÿÿa7!a*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿDC solenoid pilots often have a lower pressure rating than comparable AC solenoids, give us a call at 1-800-331-4113 and we will be happy to help you with your choice. The information we will need is: • Valve model number selected • Maximum pressure at the inlet of the valve • Design flow rate !a!!2ÿÿÿÿÿÿÿÿ"ø!"*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿLimit switches are used to give a remote indication of valve position or to activate other components in the system based on valve position. For example, you may want to start a pump when a given control valve closes. Make your choice based on the following criteria. WEATHERPROOF(NEMA 4) OR EXPLOSION-PROOF(NEMA 7) In most cases, weatherproof switches are the ones to choose. Explosion proof switches only need to be selected if the atmosphere surrounding the valve is considered hazardous. Ô",*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿ FOR VALVES OTHER THAN PUMP CONTROL VALVES • If you need a switch activation at a single point of valve travel, and a single circuit to activate, choose a single SPDT switch. • If you need a switch activation at a single point of travel, but two different circuits to activate, choose a single DPDT switch. • If you need a switch activation at two different points of travel, and one circuit to activate at each position, choose dual SPDT switches. è*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿ• If you need a switch activation at two different points of travel, and two circuits to activate at each position, choose dual DPDT switches. FOR PUMP CONTROL VALVES (OCV SERIES 125 AND 126) All pump controls include a single SPDT limit switch, which is used exclusively for interfacing with the pump. On the 125, thisŽ\Ž^KZ switch activates at the valve closed position. On the 126, it activates at the full open position. If you need additional switching, choose as follows: ѦÑ+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿ • If you need an additional switch activation at the same point as the pump control switch, choose a single DPDT switch. • If you need a switch activation at a different point of travel, but only one additional circuit to activate, choose dual SPDT switches. • If you need a switch activation at two different points of travel, and two circuits to activate at each position, choose dual DPDT switches. !Ñ!!€ÿÿÿÿÿÿÿÿ_6!_)$€€Ì.€‚‚‚‚‚‚‚‚ÿA one-way flow (single-acting) altitude valve allows flow only INTO the tank. Water is withdrawn from the tank through a separate line or through a check valve installed as a bypass around the altitude valve. A two-way flow (double-acting) altitude valve allows flow both INTO and OUT OF the tank. !_!!>ÿÿÿÿÿÿÿÿô!)$€€Ì.€‚‚‚‚‚‚‚‚ÿTo enter data in this dialog box: 1. Pick the desired units of measurement by clicking on the arrow of the box under "Units" and drag to the desired units (feet or meters). 2. Enter the distance H in the units you have selected. !!!Ùÿÿÿÿÿÿÿÿ¸‹!¸-,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will help us determine the correct size for your altitude valve. To enter data: 1. Pick your fill line size by clicking on the arrow and dragging to the correct size. 2. Similarly, pick your units of flow measurement. 3. Similarly, pick your units of pressure measurement. 4. Enter the desired flow rate in the units you have chosen. !¸!!Ùÿÿÿÿÿÿÿÿ¬ƒ!¸)$€€Ì.€‚‚‚‚‚‚‚‚ÿThe non-dimmed sizes are all acceptable in keeping with the velocity range of altitude valves, which is basically 1-20 ft/second. The pre-selected option bug5ggtton represents the fill line size you previously selected. In most cases, line-sized altitude valves are appropriate. However, feel free to select a smaller size if you still have sufficient pressure to fill the tank. !¸!!‚ ÿÿÿÿÿÿÿÿð!*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿSOLENOID OVERRIDE: Choose this function if you want an additional electrical shutoff function in addition to the normal altitude control. For example, you may only want to fill the tank at certain times of the day. Placing the solenoid on a timer would be an easy way to accomplish this. ________________ PRESSURE SUSTAINING: This function will allow the tank to fill at full flow if the supply (system) pressure is above a predetermined point. If supply pressure falls to the set _2_-,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿpoint, the valve will begin to throttle to keep the pressure from falling any further. In other words, pressure sustaining keeps you from robbing the system of pressure in order to fill the tank. Before you choose this feature, you might want to read RATE OF FLOW CONTROL below, these two controls have similar effects, with only subtle differences. ________________ DELAYED DRAWDOWN: This function is available on one-way flow altitude valves only. In a normal altitude valve, there is a certain built-in difference between the tank levels at D_D)$€€Ì.€‚‚‚‚‚‚‚‚ÿwhich the valve opens and closes, which is due to the deadband in the altitude pilot control. This inherent drawdown is a function of the pilot spring, thus will vary with the height of the tank. As a rule of thumb, the inherent drawdown is approximately 5% of full tank height. In some cases, the inherent drawdown may not be enough to assure adequate turnover of the tank. The addition of the delayed drawdown control enables you to adjust the drawdown to much greater differences. Note, however, that delayed drawdown cannot BDN+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿreduce th‡mËoíhe inherent drawdown, it can only increase it. ________________ DELAYED OPENING ON RETURN FLOW: This function is available on two-way flow altitude valves only. A normal two-way altitude valve will open to allow flow out of the tank when system pressure falls a small amount below tank head. In some cases, you may want to hold the tank "in reserve," to be used only when system pressure falls to a given point. Delayed opening enables you to adjust the pressure at which the tank will begin to feed the system. Y0NY)$€€Ì.€‚‚‚‚‚‚‚‚ÿ________________ RATE OF FLOW CONTROL: This function allows the tank to be filled only up to a maximum given flow rate. After that, the valve will begin to throttle to prevent the flow rate from rising any further. Like the pressure sustaining control, described above, rate of flow control tends to protect the system. However, it does not protect the system from underpressure per se. It only limits the flow that can be taken from the system. If system pressure is your real concern, choose pressure sustaining rather than rate of flow control. ýÔYý)$€€Ì.€‚‚‚‚‚‚‚‚ÿ________________ PRESSURE RELIEF: If surges and overpressures are a problem in your system, the addition of a pressure relief function to your altitude valve may enable you to avoid having to install a separate relief valve. This function will allow the valve to open whenever system pressure rises above a predetermined point. The valve will reclose when pressure returns to normal. Note that relief flow will be into the tank, regardless of tank level. !ý!!»ÿÿÿÿÿÿÿÿ Ü!-,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿTwo modes of solenoid operation are available on the altitude valve: ENERGIZE TO ACTIVATE/DE-ENERGIZE TO CLOSE: The valve will open only if the altitude pilot is signaling for opening AND the solenoid is energized. The valve will close if the altitude pilot signals for closing OR the solenoid is de-energized. ovvovDE-ENERGIZE TO ACTIVATE/ENERGIZE TO CLOSE: The valve will open only if the altitude pilot is signaling for opening AND the solenoid is de-energized. …b…#€€Ì.€‚‚ÿThe valve will close if the altitude pilot signals for closing OR the solenoid is energized. !…!!3ÿÿÿÿÿÿÿÿë!' €€Ì.€‚‚‚‚‚‚ÿThis dialog box will enable us to select the proper end connections for the valve and the pressure ratings of other components used on the valve. Select units and enter data the same way you did for the previous system data. !!!žÿÿÿÿÿÿÿÿ}Y!}$€€Ì.€‚‚‚ÿPick the solenoid voltage based on the circuit that will be controlling the valve. !}!!°ÿÿÿÿÿÿÿÿÝ!+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿMost control valves are provided standard without any external indication of valve position. Visual indicators are available on all valves, and are provided as standard on altitude valves, check valves and System 22 electronic control valves. A visual indicator allows the user to determine the position of the valve at a glance, as long as he is standing near the valve. For remote indication of valve position, limit switches are available on all valves. These ‡c‡$€€Ì.€‚‚‚ÿswitches can also be used to turn other system components on or off based on valve position. !‡!!ÿÿÿÿÿÿÿÿøÒ!ø&€€Ì.€‚‚‚‚‚ÿValveMaster is programmed to accept all common units of pressure and flow measurement. Click on the arrow at the right end of the list box for PRESSURE, then drag to the desired units. Repeat for FLOW. !ø!!²ÿÿÿÿÿÿÿÿì!$,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿEnter the data that describes the performance envelope for your reducing valve. Simply type the numbers in the boxes provided. You may toggle between the boxes by use of the TAB key on the keyboard. In entering this data keep in minÄ~å~Ä~d the following: 1. For best performance, the desired outlet pressure (set point) should be at least 5 psi (.34 bar) lower than the MINIMUM inlet pressure. 2. Do NOT enter zero in the minimum flow box. Zero flow does not affect valve sizing. mJ$m#€€Ì.€‚‚ÿHowever, the minimum sustained flow above zero very definitely does! !m!!ÊÿÿÿÿÿÿÿÿE!E*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿStudy this dialog box carefully. Some of the sizes are dimmed, so you will not be able to select them. These sizes do not have enough capacity to handle the performance parameters you entered on the previous screen, or else the maximum recommended velocity (25 ft/sec) is exceeded. The non-dimmed sizes at least have enough capacity to handle your HIGH FLOW conditions. However, if NO is indicated under the LOW FLOW column, that particular size may not perform well under you low flow conditions. In that case, we recommend a d8Ed,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿsetup of two valves in parallel. In short, our recommendations are: 1. Pick the SMALLEST non-dimmed size. 2. If that size shows a YES under the LOW FLOW column, simply click OK. 3. If the selected size shows a NO under the LOW FLOW column, click on the PARALLEL VALVE SETUP box, then click OK. !d!!Nÿÿÿÿÿÿÿÿ-!-&€€Ì.€‚‚‚‚‚ÿThis dialog box shows the recommended sizes for both the large valve and the small valve in a parallel valve installation. To ensure proper phasing between the two valves, it is recommended that the small valve be set 3-5 psi higher than the large valve. !-!!fÿÿÿÿÿÿÿÿÚ!*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿSeveral optional features are available for your pressure reducing valve. You may pick any or all of them depending on the requirements of your system. Click on the check box beside each option you want, then click OK (or press RETURN or ENTER on your keyboard). FLOW RATE LIMITATION: TŽ†¯†Ž†his feature ensures that the flow rate through the valve will not exceed a predetermined maximum. It is typically employed to keep from placing too much demand on the system. é+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿ PRESSURE SUSTAINING: This feature ensures that the valve INLET pressure will not fall below a predetermined point. It is usually employed to protect the UPSTREAM system from underpressure. CHECK FEATURE: This feature is employed to prevent backflow should valve discharge pressure ever exceed inlet pressure. SURGE CONTROL: This feature is extremely useful in the so-called DEAD END service where the demand is often reduced to zero in a relatively short span of time. A é)$€€Ì.€‚‚‚‚‚‚‚‚ÿnormal PRV can only respond so fast: if demand is reduced faster than the valve can compensate, downstream pressure can build up, sometimes excessively. The surge control feature accelerates the closing of the valve so pressure buildup is held to a minimum. SOLENOID SHUTOFF: This feature is used to take the valve in or out of service based on an electrical signal. Two types are available: 1. ENERGIZE-TO-OPEN: The valve will be in its normal pressure reducing mode when é&€€Ì.€‚‚‚‚‚ÿthe solenoid is powered. When power is removed, the valve will close. 2. ENERGIZE-TO-CLOSE: The valve will close when the solenoid is powered. When power is removed, the valve will be in its normal pressure reducing mode. !!!Ðÿÿÿÿÿÿÿÿ¯†!¯)$€€Ì.€‚‚‚‚‚‚‚‚ÿModulating float valves can be set up to control flow either INTO or OUT OF the tank. In general, you will want to install the valve on the line which has the HIGHEST unrestricted capacity. For example, if you are pumping into the tank, but gravity flowing out of the tank, the valve should probably go on the tank INLET line. Click the appropriate option box, then click "OK". !¯!!gÿÿÿÿÿÿÿÿ:!F&€€Ì.ÄåÄ€‚‚‚‚‚ÿModulating float valves for inlet control are typically installed either at the base of the tank, or at the top of the tank, as shown. Simply pick the installation that best fits your needs by clicking the option box below the appropriate picture, then clicking "OK". !F!!ÿÿÿÿÿÿÿÿ4!4,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your modulating float valve. First decide on the units you will use for flow rate. Click the arrow on the right side of the top list box then scroll down to the desired units. Similarly, pick your units for pressure in the middle and bottom list boxes. Now type in the actual numerical values for maximum flow rate, inlet pressure at maximum flow rate, and inlet pressure at zero flow rate. It is easiest to move between the «‡4«$€€Ì.€‚‚‚ÿdata boxes by the use of the TAB key. Enter all three values, then click OK (or touch the RETURN or ENTER key on your keyboard). !«!!ûÿÿÿÿÿÿÿÿÚ²!Ú("€€Ì.€‚‚‚‚‚‚‚ÿThis dialog box establishes the distance between the main valve and the float pilot, which will affect the design of the valve's pilot system. Pick your units of measurement (inches, feet, or meters) using the arrow at the right of the list boxes, then type in the actual distances in the data boxes at the left. Use TAB to move between the data boxes. Finally, click OK (or touch the RETURN or ENTER key on your keyboard). !Ú!!÷ÿÿÿÿÿÿÿÿÊ¡!Ö)$€€Ì.€‚‚‚‚‚‚‚‚ÿIn this dialog box, you will pick either the globe-style or angle-style valve, as well as the orientation of the valve in the line. Keep in mind that the best installation is one which finds the valve installed "stem up." This is represented by the top picture in each column. Simply click the option box beside the orientation you want, then click OK (or touch the RETURN or ENTER key on you&–G–&–r keyboard). !Ö!!²ÿÿÿÿÿÿÿÿ‘h!‘)$€€Ì.€‚‚‚‚‚‚‚‚ÿBased on your flow requirements, the valve will be large enough that only a "stem up", or horizontal discharge, installation will work well. However, you still have a choice between the globe and angle configurations. Simply click the option box beside the configuration you want, then click OK (or touch the RETURN or ENTER key on your keyboard). !‘!!Ïÿÿÿÿÿÿÿÿ®…!®)$€€Ì.€‚‚‚‚‚‚‚‚ÿOCV manufactures angle valves only up through 12" in size. The flow and pressure data you entered previously indicates that a valve larger than 12" is required. In addition, it must be installed horizontally, as shown. If you can work with the horizontal globe valve shown, click "YES", otherwise, click "NO". Then click OK (or touch the RETURN or ENTER key on your keyboard). !®!!÷ÿÿÿÿÿÿÿÿÖ±!Ö%€€Ì.€‚‚‚‚ÿWe hate to admit it, but your requirements are apparently too much for us! However, please give us a call at 1-800-331-4113 and we'll see if there are some alternatives. !Ö!!®ÿÿÿÿÿÿÿÿe!("€€Ì.€‚‚‚‚‚‚‚ÿThe NON-DIMMED sizes in this dialog box are those that will meet your capacity requirements. As usual, we recommend the smallest of these for the most cost effective performance. However, if a larger size will fit your piping better, simply click the option box beside that size. Then click OK (or touch the RETURN or ENTER key on your keyboard). !!! ÿÿÿÿÿÿÿÿÞ¶!ê("€€Ì.€‚‚‚‚‚‚‚ÿLine pressure operated control valves, like ours, require a certain amount of differential pressure (the difference between upstream and downstream pressure) to operate properly. In this case, there isn't enough. One way around this problem is the use of a pressure source which is independent of the pressure in the line. If such a source is available, click "YES".CždžCž If not, click "NO", and we will give you some other options. !ê!!¢ÿÿÿÿÿÿÿÿ<!<-,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿBefore we give up on this job as a total mismatch, there are a couple of options you may want to consider: One is that you can add a pump to the tank inlet line which will give the valve the pressure it needs to operate. On the other hand, if you are pumping out of the tank, this could be one of those cases where it might be better to modulate the outflow rather than the inflow. Pick this option and we will explore it further. Click the option box beside your choice, then click OK (or touch the RETURN or E"<E#€€Ì.€‚‚ÿENTER key on your keyboard). !E!!±ÿÿÿÿÿÿÿÿK"!K)$€€Ì.€‚‚‚‚‚‚‚‚ÿThere are a number of features you can add to your modulating float valve to more closely tailor it to the needs of your system. Pick any or all of them as you need, but don't "overload" the valve, otherwise you may wind up paying for features you will never use. PRESSURE SUSTAINING: This features keeps the pressure in the inlet piping from falling too low. The valve will allow full flow into the tank as long as the inlet pressure is above the set point. However, if the pressure tries to fall below the set point, the valve will W.KW)$€€Ì.€‚‚‚‚‚‚‚‚ÿthrottle as required to keep the pressure from falling any further. For example, you may want to maintain a certain amount of pressure in the line to satisfy upstream demands. Keep in mind that when the valve is under pressure sustaining control, the level in the tank may fall. RATE OF FLOW CONTROL: This features keeps the flow rate from going too high. The valve will allow full flow into the tank as long as the flow rate is below the set point. However, if the flow rate tries to go above the set point, the valve will throttle as required ÷W,)$€€Ì.€‚‚‚‚‚‚‚‚ÿto keep the rate from rising any fu\¥³§ð¢rther. For example, you may want to protect an upstream flow meter from overspeed or a filter from excessive flow. Keep in mind that when the valve is under rate of flow control, the level in the tank may fall. CHECK FEATURE: This feature will close the valve to prevent return flow out of the tank if outlet pressure (tank head) ever becomes higher than inlet pressure. SOLENOID SHUTOFF: This feature allows the valve to be placed in or out of service ž,Â$€€Ì.€‚‚‚ÿelectrically. For example, you may only want to flow into the tank at certain times of the day. In this case, the solenoid could be wired into a timer. !Â!!Çÿÿÿÿÿÿÿÿ¦|!¦*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿTwo types of solenoid control are available: 1. ENERGIZE-TO-OPEN: The valve will be in its normal modulating float control mode when the solenoid is powered. When power is removed, the valve will close. 2. ENERGIZE-TO-CLOSE: The valve will close when the solenoid is powered. When power is removed, the valve will be in its normal modulating float control mode. !¦!!tÿÿÿÿÿÿÿÿ ß! *&€€Ì.€‚‚‚‚‚‚‚‚‚ÿOCV offers two styles of float pilot for the modulating float valve: The MODEL 812 is the most economical and the easiest to install. It is not adjustable, and must be installed at the level to be maintained. It does not provide an air gap between its exhaust and the fluid in the tank. The MODEL 813 requires a little more in the way of installation, but is adjustable if the liquid level ever needs to be changed. The body of the pilot is mounted above the level, J' J#€€Ì.€‚‚ÿtherefore an air gap is provided. !J!!\ÿÿÿÿÿÿÿÿD!P)$€€Ì.€‚‚‚‚‚‚‚‚ÿIf we locate a modulating float valve on the outlet of a tank and try to gravity flow, we're immediately faced with a dilemma. Inlet pressure to the valve is, of course, tank head. The outlet of the pilot system, wÜ®ý®Ü®hich is sensed on the main valve diaphragm, is connected to the float pilot, which is also at tank head. Therefore, there is no operating differential for the valve. In other words, a pure gravity flow system will not work. In order to make the outlet modulating float valve work, we will need to either pump out ëÅPë&€€Ì.€‚‚‚‚‚ÿof the tank through the valve, or use an independent pressure source to operate the valve. Click on the option you want, then click OK (or press the RETURN or ENTER key on your keyboard). !ë!!ûÿÿÿÿÿÿÿÿÚ²!Ú("€€Ì.€‚‚‚‚‚‚‚ÿThis dialog box establishes the distance between the main valve and the float pilot, which will affect the design of the valve's pilot system. Pick your units of measurement (inches, feet, or meters) using the arrow at the right of the list boxes, then type in the actual distances in the data boxes at the left. Use TAB to move between the data boxes. Finally, click OK (or touch the RETURN or ENTER key on your keyboard). !Ú!!àÿÿÿÿÿÿÿÿC!C)$€€Ì.€‚‚‚‚‚‚‚‚ÿIf we locate a modulating float valve on the outlet of a tank and try to gravity flow, we're immediately faced with a dilemma. Inlet pressure to the valve is, of course, tank head. The outlet of the pilot system, which is sensed on the main valve diaphragm, is connected to the float pilot, which is also at tank head. Therefore, there is no operating differential for the valve. In other words, a pure gravity flow system will not work. Since you have neither a pump or an independent pressure source, your only other option |YC|#€€Ì.€‚‚ÿis to let the outlet of the tank free flow and try to modulate the tank inlet line. !|!!ÿÿÿÿÿÿÿÿ!õ!-,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your modulating float valve. First, select your units of flow rate by click·4··ing on the arrow on the right side of the top list box and scrolling to the appropriate units. Similarly, select your units of pressure in the lower list box. Next enter the actual numeric data in the appropriate data boxes. Please enter ALL data asked for. It is easiest to move between the data boxes by using the TAB key on the Ö--,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿkeyboard. A more detailed explanation of the data required is listed below. MAXIMUM DISCHARGE FLOW RATE: This is the flow required to balance out the maximum flow INTO the tank. SYSTEM PRESSURE REQUIRED AT MAX. FLOW: This refers to the pressure DOWNSTREAM of the control valve. Simply stated, it is the pressure required to force the maximum flow through remainder of the system. PUMP DISCHARGE PRESSURE AT MAX. FLOW: This can be obtained from your ´Ž´&€€Ì.€‚‚‚‚‚ÿpump curve. PUMP SHUTOFF PRESSURE: This is the pump discharge pressure at zero flow. It, too, can be obtained from your pump curve. !´!!žÿÿÿÿÿÿÿÿ#ö!#-,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your modulating float valve. First, select your units of flow rate by clicking on the arrow on the right side of the top list box and scrolling to the appropriate units. Similarly, select your units of pressure in the lower list box. Next enter the actual numeric data in the appropriate data boxes. Please enter ALL data asked for. It is easiest to move between the data boxes by using the TAB key on the ×#-,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿkeyboard. A more detailed explanation of the data required is listed below. MAXIMUM DISCHARGE FLOW RATE: This is the flow required to balance out the maximum flow INTO the tank. SYSTEM PRESSURE REQUIRED AT MAX. FLOW: This refers to the pressure DOWNSTREAM of the control valve. Simply stated, it is the pressure required to force the maximum flow through remai9¼\¾¼nder of the system. PRESSURE AVAILABLE FROM INDEPENDENT SOURCE: This needs to be at least J'J#€€Ì.€‚‚ÿ5 psi HIGHER than full tank head. !J!!é ÿÿÿÿÿÿÿÿÛ!*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿA PRESSURE RELIEF VALVE, in general, is a valve that controls pressure at its inlet and is installed in a bypass off the main line. It typically exhausts to atmosphere, to a storage tank, or back to the suction side of the pump. Within the category of pressure relief valves are four types: 1. SURGE RELIEF VALVE: This valve is typically closed during normal operation, and opens only when it senses a pressure higher than its set point. As such, its purpose is á ("€€Ì.€‚‚‚‚‚‚‚ÿto protect the line from surges and overpressures that might result from such factors as a pump start or a downstream valve closure. Since the surge relief valve operates only intermittently, it can tolerate much higher flow velocities than control valves that are in operation all or most of the time. 2. FIRE PUMP RELIEF VALVE: A specialized surge relief valve designed for use on fire pumps in accordance with NFPA 20. It is listed by Underwriters Laboratories and 0 0("€€Ì.€‚‚‚‚‚‚‚ÿapproved by Factory Mutual Research for fire pump relief service. It is available only in 3" through 8" sizes, and is limited to 300 psi maximum set point (180 psi on 8"). 3. SURGE ANTICIPATION VALVE: This valve is particularly useful in protecting a system from surges that can occur from an electrical power failure while a pump is running. It opens immediately on power failure "in anticipation" of the surge that will occur when the forward momentum of the flow dies out and the pressure wave returns. It ?0K("€€Ì.€‚‚‚‚‚‚‚ÿis best used in combination with a pump control valve which will handle normal starting and starting of the pump, leaving the surge anticipator to handle the abnormal situations. 4. BYPASS PåÄǶÀRESSURE CONTROL VALVE: While this valve is physically identical to the surge relief valve, the bypass pressure control valve is open and controlling the pressure at its inlet during normal operation. As such, it is controlling system pressure much like a pressure reducing valve, except that it does so by diverting flow rather than ?K?' €€Ì.€‚‚‚‚‚‚ÿremoving pressure through friction. Its use can be limited by cavitation considerations, as the pressure drop across such valves is often quite high. Click on the button beside the valve of your choice, then click OK (or press the RETURN or ENTER key on your keyboard). !?!!ÿÿÿÿÿÿÿÿ/!/,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your surge relief valve. First of all, pick your units of pressure measurement by clicking on the arrow at the right of the top list box, then scrolling to the desired units. Similarly, pick your units of flow measurement using the lower list box. Now, type in your actual numeric data in the boxes provided. You will find it easiest to move between the data boxes by using the TAB key on your keyboard. A more detailed Ü/*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿexplanation of the data needed is given below. MAXIMUM ALLOWABLE SYSTEM PRESSURE: This is simply the maximum pressure you want to see in the line. Typically it is defined by the rating of the pipe, fittings, or other components in the system. It will be the actual set point for the relief valve. MAXIMUM SYSTEM FLOW: This is the maximum flow of which the system is capable, for example it may be the flow rate with all pumps running. NOTE: You may leave this ì!)$€€Ì.€‚‚‚‚‚‚‚‚ÿbox blank IF you enter the SYSTEM FLOW AT MAX. ALLOWABLE PRESSURE, as defined below. SYSTEM FLOW AT MAX. ALLOWABLE PRESSURE: This is the criterion ValveMaster will use in the sizing of the relief valve if it is given. IïÌõΟÊf the relief valve is used downstream of a pump, this data may be obtained from the pump curve using MAXIMUM ALLOWABLE SYSTEM PRESSURE, defined above. If this data is not given, leave the box blank. In this case, ValveMaster will size the valve based on 60% of ‘m!‘$€€Ì.€‚‚‚ÿmaximum system flow. (This is admittedly a rule-of-thumb, but one that has worked out generally well.) !‘!!ÿÿÿÿÿÿÿÿÜ!)$€€Ì.€‚‚‚‚‚‚‚‚ÿYour surge relief valve can be enhanced by two options. You may pick either or both by simply clicking the appropriate check box, then clicking OK (or pressing the RETURN or ENTER key on your keyboard). CHECK FEATURE: This feature causes the valve to close if discharge pressure ever exceeds inlet pressure. Since many surge relief valves discharge to atmosphere, this feature is rarely necessary. However, if discharge is into a tank or reservoir, there could be Ý·Ý&€€Ì.€‚‚‚‚‚ÿcircumstances that would make this feature necessary. SOLENOID SHUTOFF: This feature allows the surge relief valve to be taken in or out of service from a remote location. !Ý!!¿ÿÿÿÿÿÿÿÿžt!ž*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿTwo types of solenoid control are available: 1. ENERGIZE-TO-ACTIVATE: The valve will be in its normal pressure relief mode when the solenoid is powered. When power is removed, the valve will close. 2. DE-ENERGIZE-TO-ACTIVATE: The valve will close when the solenoid is powered. When power is removed, the valve will be in its normal pressure relief mode. !ž!!xÿÿÿÿÿÿÿÿä!,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter here will enable ValveMaster to properly size your fire pump relief valve, subject to the requirements of NFPA 20. First, click on the type of fire pump that will be used, either horizontal split-case centrifugal or vertical turbine. Next, pick your units of flow measurement by clicking on the arrow iÖŠÖiÖat the right of the top list box, then scrolling to the desired units. Similarly, pick your units of pressure measurement using the lower list box. ;;("€€Ì.€‚‚‚‚‚‚‚ÿ Now, type in your actual numeric data for rated flow and maximum pressure in the boxes provided. You will find it easiest to move between the data boxes by using the TAB key on your keyboard. Finally, click OK (or push the RETURN or ENTER keys on your keyboard). !;!!3ÿÿÿÿÿÿÿÿ7 !7,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿPer the requirements of NFPA, and in accordance with the terms of our listings with UL and FM, the flow and pressure limitations of the fire pump relief valve are as follows: 3" Valve: Fire pumps rated at 500 gpm or less, 300 psi max. pressure (180 psi for FM). 4" Valve: Fire pumps rated at 1000 gpm or less, 300 psi max. pressure (180 psi for FM). 6" Valve: Fire pumps rated at 2500 gpm or less, 300 psi max. pressure (180 psi for FM). 8" Valve: Fire pumps rated at 4500 gpm or less, 180 psi max. pressure. Û²7Û)$€€Ì.€‚‚‚‚‚‚‚‚ÿ UL-listed valves can be used on both horizontal, split-case, centrifugal and vertical turbine fire pumps. FM-approved valves are confined to horizontal centrifugal pumps. Our surge relief valve, on the other hand, can safely operate at flows and pressures well beyond those shown. Further, it has successfully been used on fire pumps in many cases. However, such installations MUST be approved by the local fire marshal. !Û!!ÿÿÿÿÿÿÿÿ3!?+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿThe Cv factor is a measure of the valve's capacity. The Cv required in a particular valve is directly proportional to the square of the flow rate and inversely proportional to the square of the pressure drop. In the case of the fire pump relief valve, the highest Cv available is that of the 8" angle valve, which is 1000. You can reduce the required Cv by either (1) decreasing the flow rate, (2) increasÞ5ÞÞing the valve inlet pressure, or (3) reducing the valve discharge pressure. Unfortunately, the first 6?6("€€Ì.€‚‚‚‚‚‚‚ÿtwo factors are fairly well fixed by system requirements and the pump curve. However, there may be a possibility to reduce valve discharge pressure. For example, you may discharge the valve to atmosphere or to a holding tank rather than to pump suction. If the above factors cannot be changed, your only other choice is to use a larger valve. This would get you out of the UL/FM fire pump relief valve and into the surge relief valve. Keep in mind that the surge relief valve has been used successfully in many fire jG6j#€€Ì.€‚‚ÿpump applications, subject to approval by the local fire marshal. !j!!fÿÿÿÿÿÿÿÿ0!0("€€Ì.€‚‚‚‚‚‚‚ÿDuctile iron (ASTM A536, Grade 65-45-12) is our only body material currently approved by UL and FM for the fire pump relief valve. The non-dimmed choices give you an option for the end connections. The pre-selected option button represents the MOST ECONOMICAL choice. However, it is recognized that you may have to select a different end connection to match other piping components. For example, you will note the choice for 300# inlet flange and 150# outlet flange. This choice is often used on the fire pump î0' €€Ì.€‚‚‚‚‚‚ÿrelief valve, where the discharge piping does not need to carry the higher pressure rating of the main system piping. To choose, simply click on the desired option button then click OK (or push RETURN or ENTER on the keyboard). !!!Eÿÿÿÿÿÿÿÿ$þ!$&€€Ì.€‚‚‚‚‚ÿThis dialog box is self-explanatory. Currently, UL and FM have only approved bronze for the pressure relief pilot and Buna-N for the rubber goods. Not to worry though, these materials have proven adequate in virtually all fire pump applications. !$!!.ÿÿÿÿÿÿÿÿ à!)$€€Ì.€¿çàç¿ç‚‚‚‚‚‚‚‚ÿThere are only three options available for the fire pump relief valve: closing speed control, isolation ball valves, and the visual indicator. Consider carefully before selecting either the closing speed control or the isolation ball valves. Their use will prevent the valve from being FM-approved! CLOSING SPEED CONTROL (OK for UL ONLY): Ideally, a relief valve should open quickly to relieve surges, then close slowly after pressure has returned to normal in order //*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿto prevent secondary surges. The closing speed control allows exactly that. The down side is that if someone were to adjust the speed control fully closed, the valve wouldn't close at all. ISOLATION BALL VALVES (OK for UL ONLY): These are very handy for isolating the pilot system from the main valve for troubleshooting or maintenance. However, if one or both of the ball valves are closed, the valve will be totally disabled. VISUAL INDICATOR (OK for UL and FM): Enables you to determine the valve's É£/É&€€Ì.€‚‚‚‚‚ÿposition at a glance. Choose any of the three options by clicking on the appropriate check box, then click OK (or push RETURN or ENTER on your keyboard). !É!!„ ÿÿÿÿÿÿÿÿ3 !3)$€€Ì.€‚‚‚‚‚‚‚‚ÿOCV offers three different modes of operation for the surge anticipation valve: POWER FAILURE OPENING ONLY: The valve would only open in the case of an electrical power failure. It would then open fully, remain open for a predetermined period of time, then slowly reclose whether or not power is restored. This is the "base function" of all of OCV's surge anticipation valves. The theory behind it is that when a pump suddenly stops, fluid momentum will continue "up the hill" until gravity and friction cause D3P' €€Ì.€‚‚‚‚‚‚ÿit to stop and reverse itself. It is when the returning surge wave hits the closed pump check valve that damage can occur. A conventional relief valveíAïíì will not begin opening until the surge wave returns, which is often too late. The surge anticipator, on the other hand, by opening at the instant of power failure, will already be open when the surge wave returns, thus diverting the wave from the system. This mode is a good choice only when the main line is open, i.e., there are no valves downstream that could be closed, causing éP("€€Ì.€‚‚‚‚‚‚‚ÿhigh pressures that cannot be anticipated electrically. POWER FAILURE OPENING AND HIGH PRESSURE RELIEF: In addition to the power failure opening described above, this mode adds a conventional pressure relief pilot which will open the valve when line pressure exceeds the set point, then slowly reclose the valve when pressure returns to normal. This additional feature is definitely recommended when main line flow can be stopped or diminished by a downstream valve closure. In ä ("€€Ì.€‚‚‚‚‚‚‚ÿaddition, the relief pilot can act as somewhat of a backup to the power failure opening feature. This mode has typically been the most popular choice. POWER FAILURE OPENING, LOW PRESSURE OPENING, AND HIGH PRESSURE RELIEF: In addition to the power failure and high pressure opening features described above, this mode adds a function that would open the valve in the event of a pump failure other than a power failure, e.g., the pump shaft shears. This function is actually à ' €€Ì.€‚‚‚‚‚‚ÿaccomplished through a pressure switch that simulates a power failure to the valve. The theory behind it is that as fluid momentum continues away from the pump, a low pressure zone - often called a "downsurge" is created at the pump discharge. The pressure switch senses this and interrupts power to the valve's solenoid pilot, causing the valve to open fully, remain open for a predetermined period of time, then slowly reclose whether or not pressure returns to normal. °‹¼%€€Ì.€‚‚‚‚ÿ To choose the mode you want, simply®õµ÷íì click the appropriate option button, then click OK (or push RETURN or ENTER on your keyboard). !¼!!öÿÿÿÿÿÿÿÿë!)$€€Ì.€‚‚‚‚‚‚‚‚ÿOCV offers two types of surge anticipation valves: The STANDARD ELECTRO-HYDRAULIC TYPE uses a solenoid pilot for initiating the power failure and low-pressure opening sequences, the latter through a pressure switch. The length of time the valve remains open is adjusted by a needle valve which feeds a small accumulator. High pressure opening is controlled by a conventional pressure relief pilot. Electrical interfacing is accomplished by simply wiring the solenoid and pressure ø ("€€Ì.€‚‚‚‚‚‚‚ÿswitch in series across incoming power. This simple, relatively economical valve is recommended for smaller systems, particularly those with only one pump. The ELECTRONICALLY-CONTROLLED TYPE uses similar components (solenoid pilot, pressure switch, relief pilot) on the valve itself. However, full control of the power failure and low pressure sequences is placed in our Surge Commander control panel. This panel includes a battery and charger for powering the solenoid, timers for setting the ¡y ¡("€€Ì.€‚‚‚‚‚‚‚ÿprecise length of time the valve is open and for locking the valve out on pump start, and lights for indicating system status. This state-of-the-art approach to surge protection is highly recommended in larger, multiple pump stations. To choose the type you want, simply click the appropriate option button, then click OK (or push RETURN or ENTER on your keyboard). !¡!!²ÿÿÿÿÿÿÿÿB!N,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your surge anticipation valve. First of all, pick your units of flow measurement by clicking on the arrow at the right of the top list box, then scrolling to the desired units. Similarly, pick your units of pressure measurement using the middlgþˆþgþe and lower list boxes. Now, type in your actual numeric data in the boxes provided. You will find it easiest to move between the data boxes by using the TAB key on your keyboard. A more detailed áN )$€€Ì.€‚‚‚‚‚‚‚‚ÿexplanation of the data needed is given below. MAXIMUM STATION FLOW: This is the maximum flow rate out of the pump station. For multiple-pump stations, it is the flow rate with ALL active pumps running. STATIC PRESSURE: This is the pressure that would be measured at the discharge of the pump station with all pumps OFF. In the typical situation - pumping "up a hill" or to an elevated tank, it is the pressure represented by the height of the hill or tank, measured 9 9' €€Ì.€‚‚‚‚‚‚ÿfrom the pump station. MAX. ALLOWABLE PRESSURE: This is simply the maximum pressure you want to see in the line. Typically it is defined by the rating of the pipe, fittings, or other components in the system. It will be the actual set point for the relief valve. !9!!yÿÿÿÿÿÿÿÿU+!U*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿIn a flat piping system with no static pressure, or a downhill piping system with negative static pressure, there is no way gravity can create a flow reversal that would cause surges at the pump station. Therefore, a surge anticipation valve can provide no benefit whatsoever. If flow can be shut off downstream, surges can be created that cannot be "anticipated". In this case, you may want to consider the surge relief valve. To do this click OK in this dialog box. A dialog box will appear asking if you wish to select another valve. Click ÞU%€€Ì.€‚‚‚‚ÿYES, the click OK. This will give you the SERIES SELECTION dialog box. Pick PRESSURE RELIEF VALVE, then click OK. Finally, you will get the TYPE OF RELIEF VALVE dialog box. Select SURGE RELIEF VALVE, then click OK. !!!0ÿÿÿÿÿÿÿÿ×! )$€€Ì.€‚‚‚‚‚‚‚‚ÿSurge anticipation valves, in gen’³’eral, will not work well with static pressures below approximately 10 psi. Then again, there is not a great deal of surge potential in such "low rise" systems. If flow can be shut off downstream, surges can be created that cannot be "anticipated". In this case, you may want to consider the surge relief valve. To do this click OK in this dialog box. A dialog box will appear asking if you wish to select another valve. Click Þ %€€Ì.€‚‚‚‚ÿYES, the click OK. This will give you the SERIES SELECTION dialog box. Pick PRESSURE RELIEF VALVE, then click OK. Finally, you will get the TYPE OF RELIEF VALVE dialog box. Select SURGE RELIEF VALVE, then click OK. !!!`ÿÿÿÿÿÿÿÿ?!?' €€Ì.€‚‚‚‚‚‚ÿThe highest pressure rating available in an OCV valve is 740 psi for our 300# ANSI B16.5 valve. We might add that we know of no other diaphragm-actuated valve rated even this high. Please feel free to call us at 1-800-331-4113, and we will be more than happy to discuss. !?!!Ðÿÿÿÿÿÿÿÿ:!:,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your bypass pressure control valve. First of all, pick your units of pressure measurement by clicking on the arrow at the right of the top list box, then scrolling to the desired units. Similarly, pick your units of flow measurement using the lower list box. Now, type in your actual numeric data in the boxes provided. You will find it easiest to move between the data boxes by using the TAB key on your keyboard. A more detailed 2:>-,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿexplanation of the data needed is given below. DESIRED SYSTEM PRESSURE: This is the pressure you want to see at the pump discharge. It will be the set point of the pressure control valve. PUMP OUTPUT AT DESIRED PRESSURE: This is the rated flow of the pump at the pressure defined above. You can read this value on your pump curve. C }"  MINIMUM SYSTEM DEMAND: This is the LOWEST flow rate that will be required by the system. MAXIMUM SYSTEM DEMAND: This is the HIGHEST flow rate that will be required 7>7#€€Ì.€‚‚ÿby the system. !7!!ÿÿÿÿÿÿÿÿè!)$€€Ì.€‚‚‚‚‚‚‚‚ÿYour bypass pressure control valve can be enhanced by two options. You may pick either or both by simply clicking the appropriate check box, then clicking OK (or pressing the RETURN or ENTER key on your keyboard). CHECK FEATURE: This feature causes the valve to close if discharge pressure ever exceeds inlet pressure. If your valve discharges to atmosphere, this feature would not be necessary. However, if discharge is into a tank or reservoir, there could be circumstances íÇí&€€Ì.€‚‚‚‚‚ÿthat would make the check feature necessary to prevent back flow. SOLENOID SHUTOFF: This feature allows the pressure control valve to be taken in or out of service from a remote location. !í!!Áÿÿÿÿÿÿÿÿ v! *&€€Ì.€‚‚‚‚‚‚‚‚‚ÿTwo types of solenoid control are available: 1. ENERGIZE-TO-ACTIVATE: The valve will be in its normal pressure control mode when the solenoid is powered. When power is removed, the valve will close. 2. DE-ENERGIZE-TO-ACTIVATE: The valve will close when the solenoid is powered. When power is removed, the valve will be in its normal pressure control mode. ! !!¹ÿÿÿÿÿÿÿÿ6 !B,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your pressure sustaining valve. First of all, pick your units of pressure measurement by clicking on the arrow at the right of the top list box, then scrolling to the desired units. Similarly, pick your units of flow measurement using the lower list box. Now, type in your actual numeric data in the boxes provided. You will find it easiest to move between the data boxes by using the TABÒóÒ key on your keyboard. A more detailed ×B+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿexplanation of the data needed is given below. PRESSURE TO BE SUSTAINED: This is the MINIMUM pressure you want to see at the inlet of the pressure sustaining valve. It will be the set point of the valve. MAXIMUM SYSTEM PRESSURE: This is simply the MAXIMUM pressure the valve will see. NORMAL FLOW RATE: This is the design flow rate of the system. For example, it might be the rated flow of the pump. In many cases, this flow rate will occur at a higher T1T#€€Ì.€‚‚ÿpressure than the pressure to be sustained. !T!!Bÿÿÿÿÿÿÿÿ"ù!")$€€Ì.€‚‚‚‚‚‚‚‚ÿThe non-dimmed sizes shown in this dialog box would be suitable for use on the basis of the normal flow rate you entered. Sizes smaller than those indicated would be subject to velocities in excess of the rated maximum. Sizes larger than those indicated are really too large to do an adequate job of pressure control. The pressure drops given are based on a FULL OPEN valve. In other words, the valve has not yet been called upon to sustain pressure. Remember that normally pressure sustaining L#"L)$€€Ì.€‚‚‚‚‚‚‚‚ÿvalves are normally used to prevent pressure from becoming TOO low. At NORMAL flow rates, the pressure is adequate, therefore the valve does not have to modulate. (This describes a typical use: on the discharge of a pump to keep the pump from running too far to the right on its curve.) On the other hand, if the valve is IN CONTROL at the normal flow rate, pressure drops will be higher than those shown and would be independent of valve size. To select from the indicated sizes, figure out how much pressure drop you can allow, then ³L³$€€Ì.€‚‚‚ÿpick the SMALLEST size commensurate with that pressure drop. You may also pick a line-sized valve IF that particular size is not dimmed. !³?!øÿÿÿÿÿÿÿÿXXXXXXXXXXXXXXXXXXÍ Íß?)$€€Ì.€‚‚‚‚‚‚‚‚ÿYour pressure sustaining valve can be enhanced by two options. You may pick either or both by simply clicking the appropriate check box, then clicking OK (or pressing the RETURN or ENTER key on your keyboard). CHECK FEATURE: This feature causes the valve to close if discharge pressure ever exceeds inlet pressure, thus preventing back flow. For example, if the valve is used on the discharge of a pump, adding the check feature would eliminate a separate pump check ±‹±&€€Ì.€‚‚‚‚‚ÿvalve. SOLENOID SHUTOFF: This feature allows the pressure control valve to be taken in or out of service from a remote location. !±!!™ÿÿÿÿÿÿÿÿ-!--,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿTwo types of solenoid control are available: 1. ENERGIZE-TO-ACTIVATE: The valve will be in its normal pressure sustaining mode when the solenoid is powered. When power is removed, the valve will close regardless of pressure. 2. DE-ENERGIZE-TO-ACTIVATE: The valve will close regardless of pressure when the solenoid is powered. When power is removed, the valve will be in its normal pressure sustaining mode. Simply click the option box beside the operation you want, then click OK (or press K(-K#€€Ì.€‚‚ÿRETURN or ENTER on your keyboard). !K!!²ÿÿÿÿÿÿÿÿ‘j!‘' €€Ì.€‚‚‚‚‚‚ÿFloat valves are typically installed either at the base of the tank, or at the top of the tank, as shown. In the latter case, the float pilot is typically physically mounted on the main valve for a self-contained installation. Pick the installation that best fits your needs by clicking the option box below the appropriate picture, then clicking "OK". !‘!!ÿÿÿÿÿÿÿÿ)ý!5,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your float valve. First decide on the units you will use for flow rate. Click '1''the arrow on the right side of the top list box then scroll down to the desired units. Similarly, pick your units for pressure in the middle and bottom list boxes. Now type in the actual numerical values for maximum flow rate, inlet pressure at maximum flow rate, and inlet pressure at zero flow rate. It is easiest to move between the «‡5«$€€Ì.€‚‚‚ÿdata boxes by the use of the TAB key. Enter all three values, then click OK (or touch the RETURN or ENTER key on your keyboard). !«!!Áÿÿÿÿÿÿÿÿ x! ("€€Ì.€‚‚‚‚‚‚‚ÿThis dialog box establishes the distance between the main valve and the float pilot. Pick your units of measurement (inches, feet, or meters) using the arrow at the right of the list boxes, then type in the actual distances in the data boxes at the left. Use TAB to move between the data boxes. Finally, click OK (or touch the RETURN or ENTER key on your keyboard). ! !!ÿÿÿÿÿÿÿÿ0!0+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿFloat valves require at least 8-10 psi inlet pressure when the valve is closed in order to operate properly. This means that gravity flow systems with relatively small elevation differences are not ideal for line-pressure operated valves. This situation can be remedied by adding a pump upstream of the tank and valve. If it is not feasible to add a pump, your only choice may be something like a motor-operated valve. Clicking "Yes" followed by "OK" will return you to the System Data dialog box where Á›0Á&€€Ì.€‚‚‚‚‚ÿyou can enter new data based on your pump. Clicking "No" followed by "OK" will result in a dialog box asking if you want to select another valve. !Á!!÷ÿÿÿÿÿÿÿÿÜ!)$€€Ì.€‚‚‚‚‚‚‚‚ÿFloat valves require a minimum flowing differential pressure of 5 psi in order to work reliably. Fortunately, there are a couple of things that can be done to ensure the valve has enough differential to worä./ä.k with: 1. ADD A PRESSURE SUSTAINING CONTROL: This is the easiest and least expensive fix, as it requires an addition to the float valve, but no modification of the system itself. The pressure sustaining control actually throttles the valve as necessary to **' €€Ì.€‚‚‚‚‚‚ÿmaintain a certain inlet pressure. Because the downstream geometry is fixed, sustaining the inlet pressure will result in maintaining the desired differential. The only drawback is that the flow rate into the tank will be less than you originally intended. An estimate of the new flow rate is given in the dialog box. If it is adequate, we highly recommend choosing this option. If you do so, the pressure sustaining control will automatically be added to the valve and the selection procedure will resume. ÷* )$€€Ì.€‚‚‚‚‚‚‚‚ÿ 2. ADD A PUMP: Adding a pump upstream of the valve and tank will increase the pressure and the differential under all conditions, and your design flow rate can be maintained. However, this option is definitely more expensive than the addition of the pressure sustaining control. If you choose this option, you will be returned to the System Data dialog box where you can enter new data based on your pump. 3. FORGET IT: Choose this option only if you can't add a pump to the system or the {X {#€€Ì.€‚‚ÿreduction of the flow rate caused by a pressure sustaining control is intolerable. !{!!?ÿÿÿÿÿÿÿÿa7!m*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿYour float valve can be enhanced by three different options. You may pick any or all by simply clicking the appropriate check box, then clicking OK (or pressing the RETURN or ENTER key on your keyboard). PRESSURE SUSTAINING CONTROL: Normally the float valve has two operating positions: open when the float is down, indicating the tank needs refilling, and closed when the float is up, indicating the tank is full. The pressure sustaining control, however, will Û5ü5Û5throttle the valve while it is open as necessary to maintain a certain inlet pressure. For Ým("€€Ì.€‚‚‚‚‚‚‚ÿexample, this feature could be used to keep from "robbing" the upstream system of pressure in order to fill the tank. CHECK FEATURE: This feature causes the valve to close if discharge pressure (tank head) ever exceeds inlet pressure, thus preventing back flow. Note that if the valve is located at the top of the tank, this feature would not be necessary except possibly to prevent a siphon. A siphon could only occur if the exit of the discharge pipe is below the ¬†¬&€€Ì.€‚‚‚‚‚ÿwater level. SOLENOID SHUTOFF: This feature allows the float valve to be taken in or out of service from a remote location. !¬!!ƒÿÿÿÿÿÿÿÿN$!N*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿIn addition to the pressure sustaining control that has already been added, your float valve can be enhanced by two other options. You may pick either or both by simply clicking the appropriate check box, then clicking OK (or pressing the RETURN or ENTER key on your keyboard). CHECK FEATURE: This feature causes the valve to close if discharge pressure (tank head) ever exceeds inlet pressure, thus preventing back flow. Note that if the valve is located at the top of the tank, this feature would not be necessary except possibly to íN' €€Ì.€‚‚‚‚‚‚ÿprevent a siphon. A siphon could only occur if the exit of the discharge pipe is below the water level. SOLENOID SHUTOFF: This feature allows the pressure control valve to be taken in or out of service from a remote location. !!!¥ÿÿÿÿÿÿÿÿ-!9-,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿTwo types of solenoid control are available: 1. ENERGIZE-TO-ACTIVATE: The valve will be under control of the float pilot when the solenoid is powered. When power is removed, the valve will close regardless of float position. 2. DE-ENERGIZE-TO-ACTIVATE: The valve >¾>>will close regardless of float position when the solenoid is powered. When power is removed, the valve will be under control of the float pilot. Simply click the option box beside the operation you want, then click OK (or press K(9K#€€Ì.€‚‚ÿRETURN or ENTER on your keyboard). !K!!Yÿÿÿÿÿÿÿÿè!*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿIf the float valve is to be located at the top of the tank, we can, if desired, factory mount the float pilot on the main valve itself. This will often make for a very convenient installation, as you will have no tubing to run between the valve and pilot. On the other hand, circumstances may be such that you will need to remotely mount the pilot elsewhere in the tank. Simply click the option box beside YES or NO, then click OK (or press RETURN or ENTER on your keyboard). &&"€€Ì.€‚ÿ !&!!eÿÿÿÿÿÿÿÿ:!:+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿThere are two types of valves within the rate of flow control series: The FLOW RATE CONTROL valve throttles as necessary to control the flow rate at a predetermined point regardless of fluctuations in inlet or outlet pressure. Alternatively, it may be used to prevent the flow rate from exceeding a predetermined point. Within those parameters, the valve NEVER closes: it is always open to some extent as long as flow can be allowed. The EXCESS FLOW CONTROL valve is a special valve which is open as long as the õÌ:)$€€Ì.€‚‚‚‚‚‚‚‚ÿflow rate is below a predetermined set point. However, if flow rate should reach the set point, the valve trips and goes fully and tightly closed. It will remain closed until manually reset by pushing a button on the side of the pilot control. This valve is particularly useful as a protection against downstream line breakage. Simply click the option box beside type of control you want, then click OK (or press RETURN or ENTER on your keyboard). XXXXXXXXXXXXXXXXXXXXXöE H H!!!Çÿÿÿÿÿÿÿÿ7 !7,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your rate of flow control valve. First of all, pick your units of flow measurement by clicking on the arrow at the right of the top list box, then scrolling to the desired units. Similarly, pick your units of pressure measurement using the lower list box. Now, type in your actual numeric data in the boxes provided. You will find it easiest to move between the data boxes by using the TAB key on your keyboard. A more detailed -7-*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿexplanation of the data needed is given below. MAXIMUM FLOW RATE: This is the flow rate at which you want control to take place. It may be full time control, or it may be flow limitation control, or it may be the point at which you want excess flow shutdown to take place. In any case, it will be the SET POINT of the rate of flow control device. NORMAL FLOW RATE: If you are using flow limitation or excess flow shutdown control, the NORMAL flow rate will be LESS THAN the MAXIMUM flow rate entered ò-*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿabove. On the other hand, if you valve will be in full time control, the NORMAL flow rate will be THE SAME AS the MAXIMUM flow rate. In this case, you need not enter data in this box. MINIMUM INLET PRESSURE: This is simply the LOWEST pressure the valve will see. Typically, this pressure would occur at the MAXIMUM flow rate given above. MAXIMUM INLET PRESSURE: This is simply the HIGHEST pressure the valve will see. It might occur, for example, if the line is completely shut off. &&"€€Ì.€‚ÿ !&!!Œÿÿÿÿÿÿÿÿ à!)$€€Ì.€‚‚‚‚‚‚‚‚ÿIn this dialog box, you will select the adjustment range you want for your rate of flow control valve. This range is based on the size of the orifice plate that will be installed in the valve inlet flange. On the left of thÓNôNÓNe dialog box are all the STANDARD plates we use. On the right are three CUSTOM plates that could be used. As you can see, each plate has a 4:1 adjustment range. You can only choose between those plates that are NOT DIMMED. In general, the option ß)$€€Ì.€‚‚‚‚‚‚‚‚ÿbutton will be pre-selected beside the plate that represents your BEST overall choice. However, you may select one of the other non-dimmed plates based on the following guidelines: 1. If possible, try to avoid putting your set point at the extreme low end of a given plate's range. Control is generally better higher in the range. For example, if your set point is 210 gpm, you will get better control from a 115-460 gpm plate than you would from a 200-800 gpm plate. á *&€€Ì.€‚‚‚‚‚‚‚‚‚ÿ 2. To a lesser extent, avoid putting the set point at the extreme high end of the range. This is a matter of adjustability. For example, if you select a 115-460 gpm plate for a flow rate of 450 gpm, then later discover that the flow rate can be set at 500 gpm, you won't have enough plate to do it! 3. While on the subject of adjustability, pay special attention to the CUSTOM plates: (a) The TOPMOST plate places your set point toward the lower end of the range. It ó *&€€Ì.€‚‚‚‚‚‚‚‚‚ÿmight be used if you feel that future adjustments will be mainly HIGHER. Specifically, you can adjust from 75% to 300% of the current set point. (b) The MIDDLE plate gives you EQUAL adjustment on either side of the current set point, i.e., from 50% to 200%. (c) The BOTTOM plate places your set point toward the higher end of the range. It might be used if you feel that future adjustments will be mainly LOWER. Specifically, you can adjust from 37.5% to 150% of the current set point. &&"€€Ì.€‚ÿ !&!!ùÿÿÿÿÿÿÿÿ2 !>("€€Ì.€‚‚‚‚‚‚‚ÿThe undimmed sizes in this dialog box are those that would be suitable for your appli_W€W_Wcation based on the data you entered previously. To help you make your choice, the pressure drop for each size is given. If you entered a NORMAL flow rate, the drop is based on that flow rate. If you entered only a MAXIMUM (set point) flow rate, the drop is based on a flow rate just SLIGHTLY lower than the maximum, i.e., just prior to the valve taking control. Once the valve takes control, the drop will of course be higher. O$>O+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿ In either case, the pressure drops shown include the orifice plate. One word of caution: if your inlet pressure is low, there is no guarantee that the maximum flow rate- and sometimes even the normal flow rate - can actually be achieved. The pressure downstream of the valve will be the inlet pressure minus the drop shown. This downstream pressure must be sufficient to "force" the designated flow rate through the remainder of your system. Simply click on the option button beside the size of your choice, then click OK (or press K(OK#€€Ì.€‚‚ÿRETURN or ENTER on your keyboard). !K!!”ÿÿÿÿÿÿÿÿõ!)$€€Ì.€‚‚‚‚‚‚‚‚ÿValveMaster cannot make a size selection under the pressure and flow conditions you have given. This is because the calculated pressure drop across the valve is greater than the inlet pressure you have available. This situation can be corrected by lowering your flow rate and/or increasing your minimum pressure. If you can do either or both of these, simply click YES. This will return you to the System Data dialog box where you can enter your new data. If you click NO, ValveMaster will U2U#€€Ì.€‚‚ÿask you if you wish to select another valve. !U!!ÿÿÿÿÿÿÿÿô!))$€€Ì.€‚‚‚‚‚‚‚‚ÿYour rate of flow control valve can be enhanced by three different options. You may pick any or all by simply clicking the appropriate check box, then clicking OK (or pressing the RETURN or ENTER keì^ _ì^y on your keyboard). PRESSURE SUSTAINING CONTROL: This is an extra pilot control that senses valve inlet pressure. Typically, it would be set up so that the valve can flow at the set point rate as long as inlet pressure is above a certain point. However, if inlet pressure falls to the set ñ)' €€Ì.€‚‚‚‚‚‚ÿpoint, the valve will begin throttling to prevent the pressure from falling any further. Once the pressure sustaining control "kicks in", the flow rate will necessarily fall below its set point. For example, say City A has a contract to sell 1 MGD of water to City B as long as the pressure in City A's system is 85 psi or above. A rate of flow and pressure sustaining valve set at 794 gpm and 85 psi, respectively, would automatically ensure that the terms of the contract are fulfilled. ã+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿ Another use of the pressure sustaining control is as a hydraulic "switch". We want the valve to open and flow the designated rate when the inlet pressure is above a certain point, say when the pumps are on. With pumps off, the pressure would fall and the valve would close. SOLENOID SHUTOFF: This feature allows the float valve to be taken in or out of service from a remote location. CHECK FEATURE: This feature causes the valve to close if discharge pressure ever  | $€€Ì.€‚‚‚ÿexceeds inlet pressure, thus preventing back flow. This feature can be added in lieu of using a separate check valve. ! !!Ïÿÿÿÿÿÿÿÿå!)$€€Ì.€‚‚‚‚‚‚‚‚ÿThis dialog box gives you the choice of the on/off solenoid control valve or the electronic control valve. Simply click on the option box beside your choice, then click OK (or press RETURN or ENTER on your keyboard). The ON/OFF CONTROL is just as the name implies: the valve opens and closes in response to an electrical signal. For example, power on causes the valve to open; power off causes the valve to close. This signal would üefüetypically come from some sort of switch, õ("€€Ì.€‚‚‚‚‚‚‚ÿsuch as a pressure switch, a level switch, or a simple manual switch. The ELECTRONIC CONTROL valve, on the other hand, modulates, or throttles in response to an electronic control signal, for example, 4 - 20 mA. This signal can be used directly in the case of a POSITIONING valve, or, if the signal comes from an appropriate TRANSDUCER, it can be routed through one of our CONTROLLERS to enable the valve to control pressure, flow rate, or level. This type of valve offers excellent control wTw#€€Ì.€‚‚ÿand is particularly useful where frequent set point changes might be required. !w!!6ÿÿÿÿÿÿÿÿ3!3,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your solenoid control valve. First of all, pick your units of flow measurement by clicking on the arrow at the right of the top list box, then scrolling to the desired units. Similarly, pick your units of pressure measurement using the lower list box. Now, type in your actual numeric data in the boxes provided. You will find it easiest to move between the data boxes by using the TAB key on your keyboard. A more detailed â¶3â,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿexplanation of the data needed is given below. MAXIMUM FLOW RATE: This is simply the greatest flow rate you would expect to see through the solenoid control valve MAXIMUM INLET PRESSURE: The HIGHEST pressure the valve will see. It would typically occur when the valve is CLOSED. MINIMUM INLET PRESSURE: The LOWEST pressure the valve will see. Typically, this pressure would occur at the MAXIMUM flow rate given above. !â!!4ÿÿÿÿÿÿÿÿð!%)$€€Ì.€‚‚‚‚‚‚‚‚ÿSolenoid control valves typically require at least 5 psi (0.34 bar) inlet pressure in order to operate properly. The data you just entered indicates that you are below this minimo"ooum. If you entered this data in error, or if this data can be changed, click CANCEL, then select "Go to Previous Screen". This will return you to the System Data dialog box, where you can enter your new data. On the other hand, if your data is correct, there is still a valve that will work. It is based on .%.' €€Ì.€‚‚‚‚‚‚ÿour power-actuated (dual diaphragm chamber) valve. With it, we would need an independent operating pressure source that can be connected to the valve. This source must be either clean water or air with a pressure at least equal to MAXIMUM line pressure or 10 psi (0.68 bar), whichever is greater. You should be alerted to the fact that the valve will vent a certain amount of the operating water or air each time it opens or closes. If you are using a clean water source, drain provisions must be provided. The À—.À)$€€Ì.€‚‚‚‚‚‚‚‚ÿamount exhausted on each stroke would range from a few ounces on our smallest valves up to 8 gallons on a 16" valve. Click on the option box beside your choice, then click OK (or press RETURN or ENTER on your keyboard). If you select either the water or air choice, ValveMaster will proceed with sizing your valve. If you select NO, ValveMaster will ask if you want to select a different valve. !À!!ÛÿÿÿÿÿÿÿÿÛ!)$€€Ì.€‚‚‚‚‚‚‚‚ÿThe undimmed sizes in this dialog box are those that would be suitable for your application based on the data you entered previously. To help you make your choice, the pressure drop for each size is given, based on your maximum flow rate. If your actual line size is one of the available choices, it might make the most economical installation to use that choice. Otherwise, we recommend you choose the SMALLEST valve consistent with your allowable pressure drop. ª…¶%€€Ì.€‚‚‚‚ÿ Simply click on the option button beside the size of your choice, then click OK (or press RETURN or ENTER on your keyboard). VuZw5u !¶!!žÿÿÿÿÿÿÿÿ}T!})$€€Ì.€‚‚‚‚‚‚‚‚ÿThe only available optional feature for your solenoid control valve is a check feature, which will prevent backflow by automatically closing the valve if downstream pressure should exceed upstream pressure. If you require this feature, simply click the YES option box, then click OK (or press RETURN or ENTER on your keyboard). !}!!”ÿÿÿÿÿÿÿÿsJ!s)$€€Ì.€‚‚‚‚‚‚‚‚ÿThe body of your solenoid pilot is available in either brass or stainless steel. Brass is the "standard". The dialog box explains the circumstances where stainless steel might be a better choice. Click on the option button beside the material of your choice, then click OK (or press RETURN or ENTER on your keyboard). !s!!¾ÿÿÿÿÿÿÿÿî!-,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿTwo modes of solenoid operation are available: ENERGIZE-TO-OPEN: The valve will open when power is applied to the solenoid coil, and will close when power is removed. This mode is by far the most common. ENERGIZE-TO-CLOSE: The valve will close when power is applied to the coil, and will open when power is removed. In making your choice, you might ask yourself the following questions: 1. What do I want the valve to do if I lose electrical power? If you want the valve to 6 6)$€€Ì.€‚‚‚‚‚‚‚‚ÿclose, for example, then you will definitely want to pick ENERGIZE-TO-OPEN. 2. In what position will the valve spend the majority of the time? While the solenoids we use are rated for continuous operation, less power will be consumed in the long run if you choose based on time on and time off. For example, if the valve is to be open most of the time, with only intermittent closures, ENERGIZE-TO-CLOSE might be the best choice. Click on the option button beside the mode of your choice, then click OK (or press K(6X#€€Ì.€‚‚ÿRETURN or ENTER on your keyboard). X´ € €!X!!–ÿÿÿÿÿÿÿÿ$û!$)$€€Ì.€‚‚‚‚‚‚‚‚ÿAny one of several different parameters can be controlled with the electronic control valve. They are defined below. Simply click on the option button next to your choice, then click OK (or press RETURN or ENTER on your keyboard). VALVE POSITION (POSITIONING CONTROL): The valve is positioned proportional to the electronic signal you feed it. For example, if the input signal is 4 - 20 mA, the valve would be full closed if the signal is 4 mA, full open if the signal is 20 mA, 50% open if the è$*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿsignal is 12 mA, etc. UPSTREAM PRESSURE CONTROL (PRESSURE SUSTAINING CONTROL): Here the electronic signal comes from a PRESSURE TRANSDUCER installed upstream of the control valve. The signal is fed to the valve's CONTROLLER, which positions the valve in proportion to the DEVIATION from the programmed set point. In other words, the controller modulates the valve to maintain the upstream pressure at the set point. DOWNSTREAM PRESSURE CONTROL (PRESSURE REDUCING CONTROL): P&P*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿThis is similar to the upstream pressure control, except the pressure transducer is mounted downstream of the control valve, and the controller modulates the valve to maintain the downstream pressure at the set point. FLOW RATE CONTROL: Similar to the above, except the transducer is a FLOW METER which can be installed either upstream or downstream of the control valve. The controller modulates the valve to maintain the flow rate at the set point. LEVEL CONTROL: The transducer here could be an ultrasonic type installed at the top ïÊPï%€€Ì.€‚‚‚‚ÿof the tank, or perhaps a pressure transducer installed at the base of the tank. The controller modulates the valve to maintain a constant level in the tank, i.e., to balance inflow and outflow. !ï!!!ÿÿÿÿÿÿÿÿôÎ!&€€Ì.€‚‚‚‚‚ÿAll of the commonly u¢‡Ç¢‡sed electronic signals are listed here. Click on the option box beside the level that matches your transducer output, then click OK (or press RETURN or ENTER on your keyboard). !!!@ÿÿÿÿÿÿÿÿ;!;-,€€Ì.€‚‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your Model 88 positioning valve. Simply type in your actual numeric data in the boxes provided. You will find it easiest to move between the data boxes by using the TAB key on your keyboard. A more detailed explanation of the data needed is given below. MAXIMUM FLOW RATE: This is simply the greatest flow rate you would expect to see through the valve MINIMUM INLET PRESSURE: The LOWEST pressure the valve will see. Typically, ä¾;ä&€€Ì.€‚‚‚‚‚ÿthis pressure would occur at the MAXIMUM flow rate given above. MAXIMUM INLET PRESSURE: The HIGHEST pressure the valve will see. It would typically occur when the valve is CLOSED. !ä!!¤ÿÿÿÿÿÿÿÿ#ø!#+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your Model 22 pressure control valve. Simply type in your actual numeric data in the boxes provided. You will find it easiest to move between the data boxes by using the TAB key on your keyboard. A more detailed explanation of the data needed is given below. PRESSURE CORRESPONDING TO MINIMUM SIGNAL: This is the pressure that will give the minimum output from your pressure transducer, e.g.., 4 mA. With most Û#*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿtransducers this value is zero. NOTE: It is not essential that you enter this data at this time. However, once the valve is ordered, it will enable us to properly set up the controller. PRESSURE CORRESPONDING TO MAXIMUM SIGNAL: This is the pressure that will give the maximum output from your pressure transducer, e.g.., 20 mA. Again, this is not essential except for setup purposes. MI$ŒGŽŒNIMUM INLET PRESSURE: The LOWEST pressure the valve will see. Typically, O&O)$€€Ì.€‚‚‚‚‚‚‚‚ÿthis pressure would occur at the MAXIMUM flow rate given below. MAXIMUM INLET PRESSURE: The HIGHEST pressure the valve will see. It would typically occur when the valve is CLOSED. MAXIMUM FLOW RATE: This is simply the greatest flow rate you would expect to see through the valve !O!!ÿÿÿÿÿÿÿÿ&û!&+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your Model 22 rate of flow control valve. Simply type in your actual numeric data in the boxes provided. You will find it easiest to move between the data boxes by using the TAB key on your keyboard. A more detailed explanation of the data needed is given below. FLOW RATE CORRESPONDING TO MINIMUM SIGNAL: This is the pressure that will give the minimum output from your flow meter, e.g.., 4 mA. NOTE: It is not /&/*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿessential that you enter this data at this time. However, once the valve is ordered, it will enable us to properly set up the controller. FLOW RATE CORRESPONDING TO MAXIMUM SIGNAL: This is the pressure that will give the maximum output from your flow meter, e.g.., 20 mA. This IS essential information, as it is the flow rate that will be used to size the valve. MINIMUM INLET PRESSURE: The LOWEST pressure the valve will see. Typically, this pressure would occur at the MAXIMUM flow rate given below. ¢}/¢%€€Ì.€‚‚‚‚ÿ MAXIMUM INLET PRESSURE: The HIGHEST pressure the valve will see. It would typically occur when the valve is CLOSED. !¢!!ÿÿÿÿÿÿÿÿì!#+(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your Model 88C level control valve. First of all, pick your units of level measurement by clicking on the arrow at the right of the list box, then scrolling to¿–à–¿– the units desired. Next, type in your actual numeric data in the boxes provided. You will find it easiest to move between the data boxes by using the TAB key on your keyboard. A more detailed explanation of the data needed is given below. ô#*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿ LEVEL CORRESPONDING TO MINIMUM SIGNAL: This is the level that will give the minimum output from your pressure transducer, e.g.., 4 mA. NOTE: It is not essential that you enter this data at this time. However, once the valve is ordered, it will enable us to properly set up the controller. LEVEL CORRESPONDING TO MAXIMUM SIGNAL: This is the pressure that will give the maximum output from your pressure transducer, e.g.., 20 mA. Again, this is not essential except for setup purposes.  u +(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿ MINIMUM INLET PRESSURE: The LOWEST pressure the valve will see. Typically, this pressure would occur at the MAXIMUM flow rate given below. MAXIMUM INLET PRESSURE: The HIGHEST pressure the valve will see. It would typically occur when the valve is CLOSED. MAXIMUM FLOW RATE: This is simply the greatest flow rate you would expect to see through the valve ! !!åÿÿÿÿÿÿÿÿÄŸ!Ä%€€Ì.€‚‚‚‚ÿSorry, but we must stop the selection process at this time and discuss if your signal is compatible with our equipment. Give us a call, it's toll free! !Ä!!Šÿÿÿÿÿÿÿÿò!)$€€Ì.€‚‚‚‚‚‚‚‚ÿElectronic control valves typically require at least 5 psi (0.34 bar) inlet pressure in order to operate properly. The data you just entered indicates that you are below this minimum. If you entered this data in error, or if this data can be changed, click CANCEL, then select "Go to Previous Screen". This will return you to the System Data dialog box, where you can enter your new data. On the other hand, if your data is correct, there is still a valve that will work. It is based on R)^)$€€Ì.€Ç⟦‚‚‚‚‚‚‚‚ÿour power-actuated (dual diaphragm chamber) valve. With it, we would need an independent clean water pressure source that can be connected to the valve. This source must produce a pressure at least equal to MAXIMUM line pressure or 10 psi (0.68 bar), whichever is greater. You should be alerted to the fact that the valve will vent a certain amount of the operating water or air each time it moves further open. Therefore, drain provisions must be provided. Click on the option box beside your choice, then click OK (or press RETURN or ENTER ðË^ð%€€Ì.€‚‚‚‚ÿon your keyboard). If you select the independent pressure source, ValveMaster will proceed with sizing your valve. If you select NO, ValveMaster will ask if you want to select a different valve. !ð!!òÿÿÿÿÿÿÿÿ=!=("€€Ì.€‚‚‚‚‚‚‚ÿThe undimmed sizes in this dialog box are those that would be suitable for your application based on the data you entered previously. For reference, the pressure drop for a WIDE OPEN valve of each size is given, based on your maximum flow rate. (This is not to say the valve will ever reach the wide open position: if you are using the valve for pressure, flow, or level control, chances are the valve will be in a throttled position, and the pressure drop will be whatever it needs to be to control the process variable.) ”k=”)$€€Ì.€‚‚‚‚‚‚‚‚ÿ If your actual line size is one of the available choices, it might make the most economical installation to use that choice. Otherwise, we recommend you choose the SMALLEST valve consistent with your allowable pressure drop. Simply click on the option button beside the size of your choice, then click OK (or press RETURN or ENTER on your keyboard). !”!!oÿÿÿÿÿÿÿÿò!(*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿBoth weatherproof and explosion-proof enclosures are available for your solenoids and, in the case of the Model 88, the position transmitter. Fo"§C§"§r what it's worth, the explosion-proof enclosures are also weatherproof. However, since they are somewhat more expensive, you will only want to pick them if the atmosphere surrounding the valve is considered hazardous. Click on the option button beside the enclosure of your choice, then click OK (or press RETURN or ENTER on your keyboard). &(&"€€Ì.€‚ÿ !&!!Éÿÿÿÿÿÿÿÿ¨!¨)$€€Ì.€‚‚‚‚‚‚‚‚ÿWhen your electronic control valve system is wired up, you will only need to supply electrical power to the controller. The controller will supply the power to the solenoids on the valve, and in the case of the Model 88, to the position transmitter. Click on the option button beside the voltage of your choice, then click OK (or press RETURN or ENTER on your keyboard). !¨!!uÿÿÿÿÿÿÿÿò!*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿElectronic control valves can be arranged to CLOSE, OPEN, or HOLD position in the event of electrical power failure and in the event of loss of the process variable signal. Click on one button under power failure and one under control signal failure, then click OK (or press RETURN or ENTER on your keyboard). Your selection should be based on what you are controlling and what is safest for your system. For example, if you are controlling downstream pressure, you may want the valve 88#€€Ì.€‚‚ÿto fail closed. !8!!<ÿÿÿÿÿÿÿÿæ!)$€€Ì.€‚‚‚‚‚‚‚‚ÿThere are three electronic options available for your Model 88 control valve. You may pick any or all of them simply by clicking on the appropriate check box, then clicking OK (or pressing RETURN or enter on your keyboard). 12 VDC LOOP POWER SUPPLY: This option can be used to provide power for your transducer and possibly another device such as a remote indicator. In a 4-20 mA loop it can handle up to 600_ of loop resistance. It can handle any voltage-output transducer Xð­ °Ï­ñ*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿdesigned for 12 volt power. 4-20 mA FEEDBACK OF VALVE POSITION: This option would enable you to determine the valve's exact position from a remote location. It is particularly useful on the positioning control valve. REMOTE SET POINT: This option is only available on the level control valve, and would enable you to vary the set point from a remote location. Sixteen set points, equally spaced over the transducer's range, are available. The logic used is a 5-volt, 4-digit binary ä¿ä%€€Ì.€‚‚‚‚ÿcode. For example, OOOO is set point 0, OOXO is set point 2, XXXX is set point 15. Local set point adjustment is standard, and is accomplished by means of a 16-position rotary switch. !ä!!e ÿÿÿÿÿÿÿÿ ä! )$€€Ì.€‚‚‚‚‚‚‚‚ÿThere are several electronic options available for your Model 22 control valve. You may pick ONE in each of the categories OUTPUT 3, OUTPUT 4, ADDITIONAL INPUT, and COMMUNICATIONS. Simply click on the appropriate option button in each category, then click OK (or press RETURN or ENTER on your keyboard). MECHANICAL RELAY: This is a SPDT mechanical relay which would be typically used for a remote alarm output. If selected under OUTPUT 3, the contacts are rated 5 amps at K! K*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿ120/240 VAC and can be made normally open or normally closed by means of a jumper inside the controller. If selected under OUTPUT 4, the contacts are rated 0.5 amps at 24 VAC and are always normally open. ANALOG OUTPUT: This module will provide either 0-20 mA or 4-20 mA (front panel selectable) into a load up to 1000_. The transmitted signal can be configured for process variable, the target set point value, or the ramping set point value. SOLID STATE RELAY: This is a triac, and like the mechanical relay, would be typically K!KW*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿused for a remote alarm output. If selected under OUTPUT 3, it is resistive load 9µ„· ³rated at 1 amp at 120/240 VAC and can be made normally open or normally closed by means of a jumper inside the controller. If selected under OUTPUT 4, it is rated at 0.5 amps at 24 VAC and is always normally open. DC LOGIC: This is an SSR drive module, and is a third way of outputting a remote alarm. "ON" voltage is 17 VDC (nominal). "OFF" voltage is less than 0.5 VDC. 24 VOLT LOOP POWER: This module provides power for your transducer and other !÷W!*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿitems such as a remote display. Capacity is 25 mA. Internal impedance is 250_ for current input, 1 M_ for voltage input. REMOTE SET POINT: Normally, set point selection is made at the front panel of the controller. This module would enable you to change the set point from a remote location. The signal used can be 4-20 mA, 0-20 mA, 1-5 VDC or 0-5 VDC (jumper selectable). The signal may be ratioed and biased. RS-485 COMMUNICATIONS: Provides an isolated serial communications link. Baud tQ!t#€€Ì.€‚‚ÿrates up to 19,600 are selectable. The protocol supports CRC data checking. !t!!‡ÿÿÿÿÿÿÿÿf=!f)$€€Ì.€‚‚‚‚‚‚‚‚ÿThe electronic level control valve can be used to control flow either into or out of the tank. Typically, you will want to place the valve in the line with the GREATEST UNRESTRICTED capacity. Simply click on the option button beside your choice, then click OK (or press RETURN or ENTER on your keyboard). !f!!Êÿÿÿÿÿÿÿÿ&ý!2)$€€Ì.€‚‚‚‚‚‚‚‚ÿIn this dialog box, you will select the speed controls for your check valve. Simply click on the option button beside your choice, then click OK (or press RETURN or ENTER on your keyboard). An explanation of each of the choices follows: NO SPEED CONTROLS: A check valve without speed controls opens and closes quickly. In order that large surges not be generated, this configuration should be used only when flow velocities are relativel÷½¾÷½y low, generally below 6 ft/sec (1.8 m/sec). It should also )ÿ2)*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿbe noted that valve closing is quick, but NOT immediate. A small amount of backflow will occur before the valve closes completely. OPENING SPEED CONTROL ONLY: A check valve with only an opening speed control can be adjusted to open quite slowly, for example when the pump starts. This can help reduce startup surges. On pressure reversal, closing is quick, but not immediate, and a small amount of backflow will be allowed. OPENING AND CLOSING SPEED CONTROLS: A check valve with both opening and ê)("€€Ì.€‚‚‚‚‚‚‚ÿclosing speed controls will enable the user to independently adjust both speeds. The closing speed control can be used to reduce shutdown surges, by slowly reducing backflow. However, it should be noted that quite a bit of backflow will occur before the valve closes. Your system must be tolerant of back flow, and most importantly, the pump must be prevented from restarting while the back flow is taking place. OPENING SPEED CONTROL/LIFT CHECK CLOSING: A check valve with this ï' €€Ì.€‚‚‚‚‚‚ÿconfiguration can be adjusted to open quite slowly, to help reduce startup surges. Closing is by means of a special two-piece diaphragm/seat assembly within the main valve. This allows the valve to seat off independent of the position of the diaphragm. Closing occurs at the moment that forward flow has been reduced to zero, and before back flow starts. Because closure occurs at the "zero momentum" condition, surges can actually be less than with other configurations of check valve. &&"€€Ì.€‚ÿ !&!!‰ÿÿÿÿÿÿÿÿ\5!h' €€Ì.€‚‚‚‚‚‚ÿThis dialog box is self-explanatory. Click the first option box if the check valve is to be used on a booster pump, the second dialog box if the valve is to be used on a well pump, and the third if the valve is not being used on a pump. FinallÁÆâÆÁÆy, click OK (or press RETURN or ENTER on your keyboard). !h!!ÿÿÿÿÿÿÿÿ'ÿ!'("€€Ì.€‚‚‚‚‚‚‚ÿOne of the primary uses of the diaphragm check valve is on a deep well pump IN CONJUNCTION with a deep well pump control valve (OCV Series 126). The latter valve is installed on a bypass line between the pump discharge and the check valve and is electrically interfaced with the pump. Or, if the well is relatively shallow, a booster pump control valve can be used INSTEAD OF the check valve. In either case, the pump will START and STOP against a CLOSED main line valve, which can serve to completely Ц'Ð*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿeliminate startup and shutdown surges. If you choose "OK let me look at pump control valves", ValveMaster will return you to the series selection dialog box, where you can simply select "Pump Control Valve." If you select "Continue check valve selection", ValveMaster will do just that. However, we highly recommend you look at the pump control valves - specifically the Series 126 - immediately thereafter. !Ð!!…ÿÿÿÿÿÿÿÿ(ü!(,*€€Ì.€‚‚‚‚‚‚‚‚‚‚‚ÿThe data you enter in this dialog box will enable ValveMaster to properly size your check valve. First of all, pick your units of flow measurement by clicking on the arrow at the right of the top list box, then scrolling to the desired units. Similarly, pick your units of pressure measurement using the lower list box. Now, type in your actual numeric data in the boxes provided. You will find it easiest to move between the data boxes by using the TAB key on your keyboard. A more detailed Õ( +(€€Ì.€‚‚‚‚‚‚‚‚‚‚ÿexplanation of the data needed is given below. NORMAL FLOW RATE: This is simply the flow rate you would expect to see through the check valve. If the check valve is on the discharge of a pump, this would be the design flow rate of the pump. MAXIMUM UPSTREAM PRESSURE: The HIGHEST pressurƒÌ«ÎbÌe the valve will see. It would typically occur when the valve is CLOSED. If the valve is on the discharge of a pump, this would be the shutoff pressure of the pump. á  )$€€Ì.€‚‚‚‚‚‚‚‚ÿDOWNSTREAM STATIC PRESSURE: (Applies to pump check valves only.) The pressure your system imposes on the valve when the pump is OFF. Typically, this is the downstream gravity head of the system. MAXIMUM DOWNSTREAM PRESSURE: (Applies only to check valves not used on pumps.) The HIGHEST pressure that would be imposed on the downstream side of the valve. Most often, this would be the downstream static head, but in some cases an even higher pressure could be imposed. & &"€€Ì.€‚ÿ !&!! ÿÿÿÿÿÿÿÿé¿!é*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿThe conditions you have given indicate a rather high surge potential, particularly when the pump stops. Because of this, we cannot recommend a diaphragm check valve for this application. However, we CAN recommend the Series 125 booster pump control valve. Clicking OK will result in you being asked if you want to select another valve. Select "YES". Then, when you get to the series selection dialog box, select "Pump Control Valve". !é!!ÏÿÿÿÿÿÿÿÿÛ!)$€€Ì.€‚‚‚‚‚‚‚‚ÿThe undimmed sizes in this dialog box are those that would be suitable for your application based on the data you entered previously. To help you make your choice, the pressure drop for each size is given, based on your maximum flow rate. If your actual line size is one of the available choices, it might make the most economical installation to use that choice. Otherwise, we recommend you choose the SMALLEST valve consistent with your allowable pressure drop. ª…ª%€€Ì.€‚‚‚‚ÿ Simply click on the option button beside the size of your choice, then click OK (or press RETURN or ENTER on your keyboard). !ª!!Áÿÿÿÿÿÿÿÿ#ú!/)$€€Ì.€À×á×Àׂ‚‚‚‚‚‚‚ÿA parallel installation of a large and a small pressure reducing valve is almost essential for good control over a wide range of flows and pressure drops. A single large valve becomes grossly oversized at a very low flow rate, particularly when the pressure drop is large. The result is a fluctuating downstream pressure, which, in extreme cases, can result in a rapid pressure oscillation called chattering. If you wish to go to a parallel valve, click CANCEL. This will return you to the size qJ/q' €€Ì.€‚‚‚‚‚‚ÿselection dialog box. Pick the SMALLEST valve that indicates OK in the HI FLOW column, then click the "Parallel Valve Setup" box, followed by OK. On the other hand, if you wish to stay with a single valve, simple click OK. However, please be aware that pressure control may be somewhat unstable at the lower flow rates. !q!!˜ÿÿÿÿÿÿÿÿwP!w' €€Ì.€‚‚‚‚‚‚ÿA parallel PRV installation is only necessary when the flow range is wide enough that a single valve cannot give good control over the entire range. In your case, the flow range is narrow enough that a single valve will be entirely adequate. Simply click OK, and ValveMaster will continue with the selection of the single PRV. !w!!Âÿÿÿÿÿÿÿÿ¡w!¡*&€€Ì.€‚‚‚‚‚‚‚‚‚ÿTwo types of solenoid control are available: 1. ENERGIZE-TO-ACTIVATE: The valve will be in its normal pressure reducing mode when the solenoid is powered. When power is removed, the valve will close. 2. DE-ENERGIZE-TO-ACTIVATE: The valve will close when the solenoid is powered. When power is removed, the valve will be in its normal pressure reducing mode. !¡!!ÿÿÿÿÿÿÿÿMD ×ö#‘&K+35ç7Á=AB-D±F¿H’KsM¤N|QJRS“TjUsVtWÉXKZ}býc;egíhov*y]zûz«}Ä~v@…Ž†ôÄ+‘+”&–˜Ï™ž›•œCžN ð¢¡ªh¬Ü®8²3´·¼¶ÀŸÊ§ÑªÔiÖáÙÞãzæ¿çíìqøgþ’ " òÒ‹ÍÅ"^%'*Ò+ä.Û5;>BA›C HÓN_WX\ì^üeËjo5ux®yB{ €¢‡ÈŒ§‘¿–Áœ¦0£"§‘©Z«Ï­ ³p¼÷½ÁÆJÈbÌçÒñÔÀ×ÛÝÛÞXODHelvœnb)änb/snb 5nbTms Rmnðnbæqnb4„nbSymbolbúnbfŽnb]•nb € ×ö#‘&K+35ç7 Á= A B -D ±F¿H’KsM¤N|QJRS“TjUsVtWÉXKZ}býc;egíh ov!*y"]z#ûz$«}%Ä~&v'@…(Ž†)ô*Ä++‘,+”-&–.˜/Ï™0ž›1•œ2Cž3N 4ð¢5¡ª6h¬7Ü®88²93´:·;¼<¶À=ŸÊ>§Ñ?ªÔ@iÖAáÙBÞCãDzæE¿çFíìGqøHgþIJ’K L" MòNOÒP‹QÍRÅ"S^%T'U*VÒ+Wä.XÛ5Y;Z>[BA\›C] H^ÓN__W`X\aì^cüedËjeof5ugxh®yiB{j €k¢‡lÈmŒn§‘o¿–pÁœq¦r0£s"§t‘©uZ«vÏ­w ³xp¼y÷½zÁÆ{JÈ|bÌ}çÒ~ñÔÀ×€ÛÝ/&;)Lzepchftnsepcÿÿÿÿÿÿÿÿ