Discharge Bypass Valves

Discharge Bypass Valvesfor System Capacity Control

March 2011 / BULLETIN 90-40

TABLE OF CONTENTS

System Capacity Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Direct Acting Valves – ADRI, ADRS, ADRP, ADRH . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Pilot Operated Valve – SHGB(E)-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Pilot Operated Valve – SHGB(E)-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Adjustment Ranges/Pressure Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Adjustable Spring Heads on Direct Acting Valves . . . . . . . . . . . . . . . . . . . . . . . . . . .5Adjustable Remote Bulb Heads on Direct Acting Valves . . . . . . . . . . . . . . . . . . . . . .6Pilot Operated Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Replacement Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Replacement Spring Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Materials and Construction Details/Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Direct Acting Discharge Bypass Valve Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . .10Adjustable “Remote Bulb” Discharge Bypass Valve Capacities . . . . . . . . . . . . . . .11Pilot Operated Discharge Bypass Valve Capacities . . . . . . . . . . . . . . . . . . . . . . . . . .11Valve Designation/Ordering Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Hot Gas Solenoid Valve Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Desuperheating TEV Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Liquid Line Solenoid Valve Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Terms of Sale with Warranty Limitations . . . . . . . . . . . . . . . . . . . . . . . . .17

SHGB-8DRHE-6ADRIADRHE-6 SHGB-15

⚠WARNING – USER RESPONSIBILITY

Failure or improper selection or improper use of the products described herein or related items can cause death, personal injury and property damage.

This document and other information from Parker Hannifin Corporation, its subsidiaries and authorized distributors provide product or system options for furtherinvestigation by users having technical expertise.

The user, through its own analysis and testing, is solely responsible for making the final selection of the system and components and assuring that all perform-ance, endurance, maintenance, safety and warning requirements of the application are met. The user must analyze all aspects of the application, follow applicableindustry standards, and follow the information concerning the product in the current product catalog and in any other materials provided from Parker or its sub-sidiaries or authorized distributors.

To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by theuser, the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses ofthe components or systems.

OFFER OF SALE

The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries or its authorized distributors. This offer and itsacceptance are governed by the provisions stated in the detailed “Offer of Sale” available at www.parker.com.

FOR USE ON REFRIGERATION and/or AIR CONDITIONING SYSTEMS ONLYBulletin 90-40, March 2011, supersedes, Bulletin 90-40, January 2004, and all prior publications.

BULLETIN 90-40 / Page 1

SYSTEM CAPACITY CONTROLOn many air conditioning and refrigeration systems itis desirable to limit the minimum evaporating pres-sure during periods of low load either to prevent coilicing or to avoid operating the compressor at a lowersuction pressure than it was designed to operate.Various methods have been used to achieve this result— integral cylinder unloading, gas engines with vari-able speed control, or multiple smaller systems.Compressor cylinder unloading is used extensively onlarger systems but is too costly on small equipment,usually 10 hp and below. Cycling the compressor witha low pressure cutout control is a method often usedbut is being re-evaluated for three reasons.

1. On-off control on air conditioning systems is uncomfortable and does a poor job of humidity and mold control.

2. Compressor cycling reduces equipment life.3. In most cases, compressor cycling is not economicalbecause of peak load demand charges.

One method that offers a practical and economical solu-tion to the problem, is to bypass a portion of the hot dis-charge gas directly into the low side. This is done by amodulating control valve — commonly called aDischarge Bypass Valve (DBV). This valve, which openson a decrease in suction pressure, can be set to automat-ically maintain a desired minimum evaporating pres-sure regardless of the decrease in evaporator load.

Sporlan manufactures a complete line of DischargeBypass Valves including non-adjustable models, for spe-cific customer requirements. Contact your Sporlan repre-sentative for assistance with special needs.

APPLICATIONSporlan Discharge Bypass Valves provide an economi-cal method of compressor capacity control in place ofcylinder unloaders or the handling of unloadingrequirements below the last step of cylinder unloading.

On air conditioning systems, the minimum allowableevaporating temperature that will avoid coil icingdepends on evaporator design and the amount of airpassing over the coil. The refrigerant temperaturemay be below 32°F, but coil icing will not usually occurwith high air velocities since the external surface tem-perature of the tube will be above 32°F. For most airconditioning systems the minimum evaporating tem-perature is 20°F to 25°F. However, when air velocitiesare reduced considerably, the minimum evaporatingtemperature should be 26°F to 28°F.

Sporlan Discharge Bypass Valves can be set so theystart to open at an evaporating pressure equivalent to32°F saturation temperature. Therefore, they would beat their rated capacity at 26°F evaporating temperature.

On refrigeration systems, discharge bypass valves areused to prevent the suction pressure from going belowthe minimum value recommended by the compressormanufacturer.

A typical application would be a low temperature com-pressor designed for operation at a minimum evapo-rating temperature of -40°F on Refrigerant 22. Therequired evaporating temperature at normal load con-ditions is -30°F. A discharge bypass valve would beselected which would start to open at the pressureequivalent to -34°F, and bypass enough hot gas at

-40°F to prevent a further decrease in suction pres-sure. Valve settings are discussed completely later inthis bulletin.

The discharge bypass valve is applied in a branch line,off the discharge line, as close to the compressor aspossible. The bypassed vapor can enter the low side atone of the following locations:

1. Evaporator inlet with distributor.2. Evaporator inlet without distributor.3. Suction line.

Each is illustrated and discussed below. While Figures1, 2, and 3 show a specific type of discharge bypassvalve, all types can be used in place of the one shown.

BYPASS TO EVAPORATOR INLET WITH DISTRIBUTOR This method of application, illustrated in Figure 1,provides distinct advantages over the other methods,especially for unitary or field built-up units where thehigh and low side are close coupled.

This method is also applicable on systems with remotecondensing units, especially when the evaporator islocated below the condensing unit, see discussion below.

The primary advantage of this method is that the sys-tem thermostatic expansion valve will respond to theincreased superheat of the vapor leaving the evaporatorand will provide the liquid required for desuperheating.Also the evaporator serves as an excellent mixingchamber for the bypassed hot gas and the liquid-vapor mixture from the expansion valve. Thisensures a dry vapor reaching the compressor. Oil returnfrom the evaporator is also improved since the velocityin the evaporator is kept high by the hot gas.

Sporlan 1650R Series Distributor or ASC – Two refrig-erant distribution methods are available to introducehot gas in this manner:

1. Bypass to Sporlan 1650R series distributor with an auxiliary side connection.

2. Bypass to Sporlan ASC series Auxiliary SideConnector.

Method 1 is normally utilized on factory assembled orunitary systems where hot gas bypass is initiallydesigned into the system. The 1650R series distribu-tor allows the hot gas to enter downstream of the dis-tributor nozzle. Method 2 is applicable on fieldbuilt-up systems or on existing systems where thestandard refrigerant distributor is already installedon the evaporator.

External Equalizer

Evaporator

External Equalizer

Hot Gas Solenoid Valve

CompressorCondenser

Rece

iver

Catch-All

Side ConnectionDistributor or ASC

TEV See-All

Solenoid Valve

DischargeBypass Valve

Figure 1

/ BULLETIN 90-40

Some caution is necessary with either of these meth-ods. If the distributor circuits are sized properly fornormal cooling duty, the flow of hot gas through thecircuits may cause excessive pressure drop and/ornoise. Therefore, it is recommended that the distribu-tor circuits be selected one size larger than for straightcooling duty. See Selection Procedures Section forselection information on this method of hot gasbypass. For complete technical details on the 1650Rseries distributor and the ASC series Auxiliary SideConnector, refer to Bulletin 20-10.

Valve/Equipment Location and Piping – When theevaporator is located below the compressor on aremote system, bypass to the evaporator inlet is stillthe best method of hot gas bypass to ensure sufficientoil return to the compressor. In order for the bypass toachieve rated capacity at the conditions for which itwas selected, the bypass valve and hot gas solenoidvalve (if used) must be located at the compressor,rather than at the evaporator. If the evaporator isabove or on the same level as the compressor, thisvalve location will also eliminate the possibility of hotgas condensing in the long bypass line and runningback into the compressor during the off cycle.

Whenever hot gas bypass to the evaporator inlet is nec-essary for a system with two or more evaporator sections,each with its own TEV (no liquid line solenoid valves),but handling the same load, two methods may be used toavoid operating interference between sections:

1. Use a separate discharge bypass valve for each evaporator section.

2. Use one discharge bypass valve to feed two bypasslines, each with a check valve between the bypass valveand the evaporator section inlet. The check valves willprevent interaction between the TEVs when the bypassvalve is closed.

Externally Equalized Bypass Valves – Since the pri-mary function of the DBV is to maintain suction pres-sure, the compressor suction pressure is the controlpressure and must be exerted on the underside of thevalve diaphragm. When the DBV is applied as shownin Figure 1, where there is an appreciable pressuredrop between the valve outlet and the compressor suc-tion, the externally equalized valve must be used. Thisis true because when the valve opens, a sudden rise inpressure occurs at the valve outlet. This creates afalse control pressure, which causes the internallyequalized valve to close.

Caution – Introduction of the bypassed gas betweenthe thermostatic expansion valve and the distributoris not generally recommended because of the largepressure drop caused by the hot gas flowing throughthe distributor nozzle, or throat, and the tube circuits,which have been sized for normal cooling flow rates.Careful evaluation and testing should precede anyapplication where hot gas is bypassed between theTEV and the distributor.

BYPASS TO EVAPORATOR INLET WITHOUT DIS-TRIBUTOR Many refrigeration systems and waterchillers do not use refrigerant distributors, but mayrequire some method of compressor capacity control.This type of application provides the same advantagesas bypassing hot gas to the evaporator inlet with a dis-tributor. All information relating to bypassing hot gasto the evaporator inlet with a distributor, except thatconcerning distributors or ASCs, also applies to bypassing

to the evaporator inlet without a distributor.

BYPASS TO SUCTION LINE On many applications, itis necessary to bypass directly into the suction line.This is generally true of systems with multi-evapora-tors or remote condensing units, as well as on existingsystems where it is easier to connect to the suctionline than the evaporator inlet. The latter situationinvolves systems fed by TEVs or capillary tubes.When hot gas is bypassed directly into the suctionline, the danger exists of overheating the compressorand trapping the oil in the evaporator. As the suctiontemperatures rise, the discharge temperature like-wise starts to increase. This can cause breakdown ofthe oil and refrigerant with the possible result being acompressor burnout. On close-coupled systems, thiscan be eliminated by locating the main expansionvalve bulb downstream of the bypass connection asillustrated in Figure 2.

Advantages and Disadvantages – The method illus-trated in Figure 2 allows the application of hot gasbypass to an existing system with only minor pipingchanges. And in most cases, the operation of the sys-tem will be satisfactory. However, on some systemsthe interaction between the DBV and the TEV mayresult in undesirable hunting and poor system per-formance. Also, there may not be sufficient length ofsuction line available to get good mixing of the hot gasvapor and the cool evaporator vapor before reachingthe bulb location. If at least 3 feet of suction line,preferably with an elbow between the two locations, isnot available, the method in Figure 3 is strongly rec-ommended instead. This method offers added flexibil-ity for multi-evaporator systems or remote systemsbecause the hot gas bypass components can be locatedat the condensing unit. However, neither method,Figure 2 or 3, ensures oil return unless special care istaken in the system piping to accomplish satisfactoryoil return to the compressor from the low side.

Desuperheating Thermostatic Expansion Valve – Onthose applications where the hot gas must bebypassed directly into the suction line downstream ofthe main expansion valve’s bulb, an auxiliary thermo-static expansion valve — commonly called a desuper-heating TEV or a liquid injection valve — is required.

The purpose of this valve is to supply enough liquidrefrigerant to cool the hot discharge gas to the recom-mended suction temperature. Most compressor manu-facturers specify a maximum suction gas temperatureof 65°F. For these requirements, special desuper -heating thermostatic charges are available which willcontrol at the proper superheat to maintain the suction

External Equalizer

Evaporator

Return Air


CompressorCondenser

Rece

iver

Catch-All

DistributorTEV See-All

Solenoid Valve

Discharge Bypass Valve withAdjustable Remote Bulb

Figure 2


gas at or below 65°F. For applications requiring suc-tion gas temperatures appreciably below 65°F, contactSporlan Valve Company or the compressor manufac-turer for assistance. In all cases the maximum permis-sible suction gas temperature published by thecompressor manufacturer must be followed. These spe-cial charges, along with the correct selection methods,are given in the Selection Procedures Section.

Figure 3 illustrates an externally equalized desuper-heating TEV. And in most cases it is the recommend-ed selection. However, if the outlet piping from theexpansion valve and the bypass valve is adequatelysized and the distance from the connection where thebypass line enters the suction line to the compressor isclose coupled, the internally equalized type may beused. If there is any doubt, use the externally equalizedvalve. See Bulletin 10-9 for a complete analysis on thissubject.

Valve/Equipment Location and Piping – As indicatedearlier, the bypass valve and hot gas solenoid valve (ifused) must be located as near to the compressor aspossible to ensure rated capacity is obtained from theDBV at the conditions for which it was selected. Onsome systems with remote condensing units, the evap-orator will be located below the compressor. When thisis the case, serious consideration should be given tobypassing the hot gas to the evaporator inlet to keepthe compressor oil from being trapped in the evapora-tor or suction line. Consult with the compressor man-ufacturer for additional application data.

One of the most important points to remember whenpiping the discharge bypass valve and the desuper-heating thermostatic expansion valve is that a homog-enous mixture of liquid and gas must be obtainedbefore reaching the bulb location. Otherwise, the sys-tem operation may become unstable and the thermo-static expansion valve will hunt. Mixing can beaccomplished two ways: use a suction line accumula-tor downstream of both connections with the auxiliarythermostatic expansion valve bulb downstream of theaccumulator; tee the liquid-vapor mixture from thethermostatic expansion valve and the hot gas from thebypass valve together before connecting a commonline to the suction line. The latter method is illustrat-ed in Figure 3.

Externally Equalized DBV –While an internally equal-ized bypass valve can be used for most applications asillustrated in Figure 2, the final selection depends onthe specific system. The deciding factor is the amountof pressure drop between the bypass valve outlet andthe compressor suction. Since most applications,

(Figures 1 and 3), require externally equalized valves,this model will be the most readily available one in thefield. Therefore, it is suggested that in all cases, theexternally equalized DBV be applied.

PARALLELING VALVES If the hot gas bypass require-ment on any system is greater than the capacity of thelargest discharge bypass valve, these valves can beapplied in parallel. The pressure settings of the paral-leled valves should be the same to get the most sensi-tive performance, and the piping to each valve shouldbe identical to keep the pressure drop across eachvalve the same.

PIPING SUGGESTIONS Figures 1, 2, and 3 are pipingschematics only to illustrate the general location ofthe discharge bypass valves in the system. Sporlanrecommends that recognized piping references, suchas equipment manufacturers’ literature and theASHRAE Handbook, be consulted for assistance.Sporlan is not responsible for system design, any dam-age arising from faulty system design, or for misappli-cation of its products. If these valves are applied inany manner other than as described in this bulletin,the Sporlan warranty is void. Actual system pipingmust be done so as to protect the compressor at alltimes. This includes protection against overheating,slugging with liquid refrigerant, and trapping of oil invarious system locations.

The inlet connection on the discharge bypass valveshould be sized to match system piping requirements.If a hot gas solenoid valve is used, its connection sizewill help determine the necessary connections on thebypass valve. Whether piping the hot gas to the evap-orator inlet or the suction line, matching connectionsis easy if all components are reviewed in light of themost efficient system operation: side connection ondistributor or ASC, hot gas solenoid valve, dischargeline, suction line, desuperheating TEV, etc.

Inlet strainers are available for all solder type bypassvalves. The need for an inlet strainer is a function ofsystem cleanliness. Moisture and particles too smallfor the strainer are harmful to the system and mustalso be removed. Therefore, it is recommended that aCatch-All Filter-Drier be applied in the liquid line andsuction line (if required). See Bulletin 40-10.

HOT GAS SOLENOID VALVE Each of the schematicdrawings in this application section shows a solenoidvalve in a hot gas bypass line. Systems that operate ona pump down cycle require a solenoid valve in the hotgas bypass line in addition to the liquid line solenoidvalve, since the bypass valve will open as the suctionpressure is reduced. The two solenoid valves, hot gasand liquid line, should be wired in parallel so they arede-energized by a thermostat or any of the compressorsafety devices, after which the compressor will shutdown.

Even if the system is not on a pump down cycle, it isusually best to have a shut-off valve in the hot gasbypass line so the system can be pumped down forservice.

When the hot gas is bypassed into the suction line, ahot gas solenoid valve is also needed if the compressordoes not have an integral temperature protectiondevice. The valve serves as a safety measure againstan extremely high superheat condition at the com-pressor suction. This condition can occur if the system

External Equalizer

Evaporator

External Equalizers


Compressor

Condenser

Rece

iver Catch-

All

DistributorTEV

See-All

SolenoidValve

Desuperheating TEV

DischargeBypass Valve

Figure 3

/ BULLETIN 90-40

experiences a malfunction of the thermostatic expan-sion valve, which is serving to desuperheat thebypassed hot gas; or, if the system is short of refriger-ant. The hot gas solenoid valve is wired in series witha bi-metal thermostat fastened to the discharge lineclose to the compressor. This causes the solenoid valveto close if the discharge line temperature becomesexcessive.

Complete selection information is given in theSelection Procedures Section.

DBV WITH OTHER PRESSURE REGULATING VALVESA discharge bypass valve can be applied on any sys-tem that experiences undesirable compressor cyclingduring periods of low load. However, when other pres-sure regulating valves are also used, some considera-tion should be given to prevent undesirable operation.For example, when the bypass valve is required on asystem with an evaporator pressure regulating valve(ORIT or other type), less hunting will probably occurif the hot gas is bypassed directly to the suction linealong with a desuperheating TEV. However, this mayleave oil trapped in the evaporator due to the lowvelocity flow when the ORIT is throttled. Therefore,depending on the specific system involved, the hot gasmay be bypassed either to the evaporator inlet ordirectly to the suction line.

If the discharge bypass valve is required on a systemwith a crankcase pressure regulating valve (CRO orother type), the DBV can bypass to the low side at anyone of the locations shown in Figures 1, 2, or 3, andthe decision on whether an internal or external valveis required will depend on the method used. The pres-sure setting of the DBV must be lower than the CROvalve setting for each valve to function properly.

Normally, when hot gas bypass is used for capacitycontrol during periods of low load, the outdoor ambi-ent drops below 70°F. Therefore, all air cooled systemsthat utilize hot gas bypass for capacity control shouldhave some type of head pressure control to maintainsatisfactory performance.

For information on other Sporlan pressure regulatingvalves refer to the following bulletins: 90-10Crankcase Pressure Regulating Valves, 90-20Evaporator Pressure Regulating Valves, and 90-30Head Pressure Control Valves.

OPERATIONDIRECT ACTING VALVES – ADRI, ADRS, ADRP, andADRH Sporlan DBVs respond to changes in down-stream or suction pressure. See Figure 4. When theevaporating pressure is above the valve setting, thevalve remains closed. As the suction pressure dropsbelow the valve setting, the valve responds and beginsto open. As with all modulating type valves, theamount of opening is proportional to the change in thevariable being controlled — in this case the suctionpressure. As the suction pressure continues to drop,the valve continues to open until the limit of the valvestroke is reached. However, on normal applicationsthere is not sufficient pressure change to open thesevalves to the limit of their stroke. The amount of pres-sure change from the point at which it is desired tohave the valve closed, to the point at which it is toopen, varies widely with the type of refrigerant usedand the evaporating temperature. For this reasonSporlan DBVs are rated on the basis of allowable

evaporator temperature change from closed positionto rated opening. A 6°F change is considered normalfor most applications and is the basis of our capacityratings. Multipliers for other temperature changes aregiven in the Selection Procedures section.

These factors must be considered in the applicationand selection of all DBV’s. Therefore, the followingsections completely explain how the various factorsare utilized in determining the proper valve to use,and the correct method of application.

PILOT OPERATED VALVE – SHGB(E)-8 During normalsystem operation, the solenoid coil is energized, whichallows the SHGB(E)-8 to modulate in response tochanges in its outlet pressure or suction pressure, seeFigure 5. De-energizing the solenoid coil will cause thevalve to close so that no discharge gas is bypassed, seeFigure 6.

As illustrated in Figure 5, the main piston of thisvalve is controlled by a pilot valve. The outlet pressureor suction pressure (P1) acts as a closing force on thepilot valve and is opposed by the adjustment springwhich acts in an opening direction. High pressure gas(P2) bleeds into the chamber above the main pistonthrough a restrictor in the piston. The pilot valve con-trols the position of the main piston by regulating theamount of gas that bleeds out of the chamber. As thispressure on top of the main piston (P3) increases anddecreases, it causes the main piston to modulateclosed and open.

As the suction pressure (P1) falls below the pilotvalve’s setting, the pilot port modulates open. Thisbleeds refrigerant from the chamber above the pistonthrough the pilot valve at a faster rate than it is enter-ing, so the pressure decreases. As this pressure (P3)plus the pressure from the spring (Ps) falls below theinlet pressure (P2), the inlet pressure pushes the pis-ton up, modulating the valve open. As the suctionpressure rises above the setting of the pilot valve, thepilot port modulates closed. This allows pressure tobuild on top of the main piston. As this pressure (P3)approaches the inlet pressure (P2), the force combinedwith the force from the spring (Ps) pushes the pistondown, modulating the valve closed.

To close the valve, the solenoid coil is de-energized. Asillustrated in Figure 6, when the solenoid coil isde-energized, the solenoid plunger closes the port tothe pilot valve, which prevents refrigerant fromleaving the piston chamber. The incoming hot gas (P2)

Adjusting Spring

External Equalizer

Diaphragm

Seat

Strainer

Piston Assembly

Figure 4

ADRHE-6


bleeds through the piston to the chamber above thepiston. However, since the hot gas cannot bleedthrough the pilot valve, the pressure on top of themain piston (P3) increases, driving the piston downand closing the main port.

PILOT OPERATED VALVE – SHGB(E)-15 In normaloperation the solenoid coil is energized which allowsthe SHGB(E)-15 to modulate in response to changes inits outlet or suction pressure, see Figure 7. De-ener-gizing the solenoid coil will close the valve so that nohot gas is bypassed, see Figure 8.

As illustrated in Figure 7, the main piston of this valveis controlled by a pilot valve. The outlet pressure orsuction pressure (P1) acts as a closing force on the pilotvalve and is opposed by the adjustment spring thatacts in an opening direction. High pressure gas (P2)bleeds into the main valve through a restrictor to thetop of the main piston. The pilot valve controls theposition of this piston by regulating the amount of gasthat bleeds out of the main valve, thus varying thepressure on top of the main piston (P3). As this pres-sure on top of the main piston increases and decreases,it causes the main piston to modulate closed and open.

As the suction pressure (P1) falls below the pilotvalve's setting, the pilot port modulates open. Thisbleeds refrigerant from the piston chamber at a fasterrate than it is entering, so the pressure decreases. Asthis pressure (P3) plus the pressure from the spring(P4) falls below the inlet pressure (P2), the inlet pres-sure pushes the piston up, modulating the valve open.As the suction pressure rises above the setting of the

pilot valve, the pilot port modulates closed. Thisallows pressure to build on top of the main piston. Asthis pressure (P3) approaches the inlet pressure (P2),the force, combined with the force from the spring(P4), pushes the piston down, modulating the valveclosed.

As illustrated in Figure 8, when the solenoid coil is de-energized, the solenoid plunger closes the port to thepilot valve, which prevents refrigerant from leavingthe piston chamber. Since this incoming hot gas (P2)cannot be bled out through the pilot valve, the pres-sure on top of the main piston (P3) increases, drivingthe piston down and closing the main port.

ADJUSTMENT RANGESPRESSURE SETTINGS

ADJUSTABLE SPRING HEADS ON DIRECT ACTINGVALVES The fully adjustable type utilizes a springassembly which can be fixed at the desired pressuresetting (opening pressure). This setting will not beaffected by other factors such as ambient or hot gastemperatures. The ADRP(E)-3 and ADRH(E)-6 areavailable with two adjustment ranges — 0/30 and 0/80psig. The ADRI(E) is available with a 0/55 psig, 0/75psig and 0/100 psig adjustment ranges. The standardfactory settings for all the fully adjustable types arelisted in the table below.

P1

Ps

P3

P2

P1

Ps

P3

P2

SEVLAVELBATSUJDAYLLUFROFSGNITTESYROTCAFDRADNATSLEDOMEVLAV EGNARTNEMTSUJDA GNITTESDRADNATS

)E(IRDA55/0 8257/0 83001/0 05

2-)E(SRDA3-)E(PRDA

6-EHRDA03/0 02

2-)E(SRDA-)E(PRDA 36-EHRDA

08/0 06

Figure 5

Figure 6

Figure 7

Figure 8

Solenoid Coil Energized Valve Modulating

Solenoid Coil De-Energized Valve Closed

Solenoid Coil Energized Valve Modulating

Solenoid Coil De-Energized Valve Closed

/ BULLETIN 90-40

The 0/30 range on the ADRS(E), ADRP(E) and ADRHEmodels is intended primarily for refrigeration applica-tions, while the 0/80 range is generally required for airconditioning systems. The capacity table shows theevaporating temperatures at which each range can beapplied. Where capacities are given for both the 0/30and 0/80, the 0/30 psig range should be used because ofits greater capacity. There is generally a small differ-ence in capacity on the ADRI(E) valves with the 0/55,0/75 and 0/100 psig adjustment ranges. Due to the dif-ference in gradient among the ADRI(E) adjustmentranges and greater capacity, it is best to choose thelowest adjustment range that provides the desired setpoint.

ADJUSTABLE REMOTE BULB HEADS ON DIRECTACTING VALVES This type of adjustable head is gener-ally applied only on air conditioning systems, and haslimited adjustment ranges of 10 psi for Refrigerant134a and 15 psi for other refrigerants. It utilizes anadjustable bellows assembly in the remote bulb of anair charged “cap tube/remote bulb” element. By chang-ing the volume of the remote bulb, pressure settingswithin the adjustment ranges can be set. Because ofthe air charge, these models are affected by ambienttemperatures at the remote bulb. (Although theremote bulb is affected by ambient temperature, it isstrictly a pressure regulating valve and not a temper-ature control device.) Therefore, it is necessary tolocate the remote bulb in as nearly constant ambientas possible to maintain a constant pressure setting.Figure 2 shows the remote bulb located in the returnair. Any other location that has a nearly constantambient temperature year-round can also be used.Since these models are set in 80°F ambient, any appre-ciable variation from this temperature will cause thepressure setting to vary. The actual pressure settingchange is 1 psi for every 7°F increase or decrease in theambient temperature.

The table below lists the standard pressure settingsand adjustment ranges for these valves.

The fully adjustable type has the definite advantage ofbeing more flexible than the adjustable remote bulbtype. However, the capacity ratings of the ADRHE-6are considerably less than the ratings of the DRHE-6adjustable remote bulb type. Therefore, when apply-ing discharge bypass valves, the specific systeminvolved will help determine which valve type is thebest one for the job.

PILOT OPERATED VALVES The SHGB(E)-8 andSHGB(E)-15 are adjustable from 0 to 100 psig. Thestandard factory setting is 69 psig. Adjustment ismade by turning the adjustment screw on the pilotvalve. Turning this screw clockwise will increase thevalve’s setting and a counterclockwise rotation willdecrease the valve’s setting.

Adjusting these valves can be complicated because theload must be varied during the setting procedure. The

load on the system must be decreased to lower thesuction pressure so that the valve can control. Thevalve should then be adjusted to maintain the desiredpressure. The load on the system should then beincreased to raise the suction pressure above the valvesetting to close the valve. Once this is accomplished,the valve setting can be checked by slowly decreasingthe load until the discharge bypass valve begins toopen (a hissing sound and/or an accompanying pres-sure rise at the outlet connection will indicate that thebypass valve has opened).

SPECIFICATIONSSporlan Discharge Bypass Valves utilize many of theproven construction features of our line of thermosta-tic expansion valves. The valves are constructed of thefinest materials — those best suited for the specificpurpose intended for each valve component. Thisensures long life and dependable service.

Since there are numerous models available, valve des-ignations have been made distinctly different to aid inspecifying each type properly. Refer to the OrderingInstructions on Page 11 for an explanation of thevalve designations.

ELEMENT DESIGNATIONS The table below lists theelement and spring part numbers for each valve type.When ordering any element, the adjustment rangeand the valve type must be specified.

The fully adjustable elements for the ADRS(E)-2,ADRP(E)-3, and ADRHE-6 are available with a choiceof two adjustment ranges, 0/30 or 0/80 psig. By mere-ly changing the adjustment spring in the element,either adjustment range can be obtained from one ele-ment. The adjustable element for the ADRI(E)-1-1/4must be replaced if a different range of adjustment is

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1 Specify desired Pressure Setting or Range of Adjustment.*Remote bulb element has 0.88” OD x 4.5” bulb with 5’ of capillary tubing. Other lengthsare available on special order and are priced the same as for special length TEV cap-illary tubing.

*Normal factory setting for a valve selected to start bypassing at an evaporator ratingtemperature of 32°F - 34°F.


required. However prior to 1994, the element wasintegral and is not replaceable. In this case, the entirevalve must be replaced.

The adjustable “remote bulb” elements contain acharge of dry air as the operating pressure. Theadjustability feature is a valve assembly built into theremote bulb. Since the adjustment range is limited bythe air pressure in the element and bulb assembly,standard valves have been set up for “air conditioning”

conditions only. However, special adjustment rangeswill be considered on special order. Contact yourSporlan Representative or Sporlan, Washington,Missouri.

The fully adjustable spring elements, A3-0/80 and A3-0/30, are interchangeable between the ADRPE andADRHE valve models. The air charged elements are notinterchangeable between the DRPE and DRHE valvemodels.

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The (A)DRI(E), (A)DRS(E), (A)DRP(E) and (A)DRHE valves are all recognized components under Underwriter’s Laboratories Guide Number SFJQ2, File Number SA5460. The maximumrated pressure for all models is 500 psig (3448 kPa).

1 Standard External Equalizer connection is 1/4” ODF. 1/4” SAE Flare connection is available on request.2 The DRP(E)-3 adjustable remote bulb model is obsolete. It may be replaced by the ADRP(E)-3 adjustable model.3Multiple combinations of straight through and angle configurations are available. Specify connection sizes and body configurations if other than standard.4 Air charges 0.88” OD x 4.50” bulb with 5’ of capillary tubing. Other lengths are available on special order and are priced the same as for special length TEV capillary tubing.

A

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B

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INTERNALLY EQUALIZED

SHGB-8EXTERNALLY EQUALIZED

SHGBE-8

Page 8 / BULLETIN 90-40

3.70MAX.

2.84MAX.

5.00

1.75 COIL REMOVAL

5.50 (1-1/8 ODF)5.53 (1-3/8 ODF)

5.50 (1-1/8 ODF)5.53 (1-3/8 ODF)

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1.75 COIL REMOVAL

3.00

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.58

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EXTERNALLY EQUALIZED

SHGBE-15

SHGB(E)-8 valves are listed by Underwriters Laboratories UL and ULC (UL Guide Number YIOZ, File Number MH4576) for a maximum working pressure of 450 psig, MOPD = 300 psi,Maximum Fluid Temperature = 240°F, and Maximum Ambient Temperature = 120°F. For use with common refrigerants excluding ammonia.

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SHGB(E)-15 valves are listed by Underwriters Laboratories (UL File Number MH4576) and Canadian Standards Association (CSA File No. LR19953-24 and LR81662-2) for a SafeWorking Pressure of 450 psig Maximum Operating Pressure Differential of 300 psig. Maximum fluid temperature = 240°F, Maximum Ambient Temperature = 120°F.

2.84MAX.

5.00

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5.50 (1-1/8 ODF)5.53 (1-3/8 ODF)

5.50 (1-1/8 ODF)5.53 (1-3/8 ODF)

.88

INTERNALLY EQUALIZED

SHGB-15Pilot tube from pilot valve to outletconnection is on SHGB model only.

SHGBE model requires a field installedexternal equalizer line from suction lineto pilot valve.


SELECTION PROCEDURESThe selection of a discharge bypass valve, and the neces-sary companion devices, is simplified if complete systeminformation is available. This will result in the most eco-nomical selection because the components will match thesystem requirements.

Besides the discharge bypass valve, a specific applicationmay require a hot gas solenoid valve, an auxiliary sideconnection distributor or ASC adapter, and a desuper-heating TEV with a companion liquid line solenoid valve.Once the type of application (review Application Section)is determined, the necessary valves can be selected fromthe information discussed in this section.

DISCHARGE BYPASS VALVES The selection of a SporlanDischarge Bypass Valve involves five basic items:1. Refrigerant - valve capacities vary considerably fordifferent refrigerants.

2. Minimum allowable evaporating temperature at thereduced load condition - depending on the system,this value must be set to prevent coil icing and/orcompressor short cycling. For example, this may be32°F - 34°F for a water chiller; 26°F - 28°F for a normalair conditioning system; and, the freezing tempera-ture of the specific product for a refrigeration system.

3. Compressor capacity (tons) at minimum allowableevaporating temperature - consult compressorcapacity ratings for this value.

4. Minimum evaporator load (tons) at which the sys-tem is to be operated - most systems are notrequired to operate down to zero load but this valuewill depend on the type of system. For example,most air conditioning systems only need to operatedown to 15-25% of full load. However, air condition-ing systems for data processing and “white” rooms,and most refrigeration systems may be required tobypass to zero load conditions.

5. Condensing temperature when minimum loadexists - since the capacity ratings of the bypass valvesare a function of condensing temperature, it is vitalthat proper head pressure is maintained, especiallyduring low load operation. As the capacity table indi-cates, a condensing temperature of 80°F is consideredthe minimum allowable for satisfactory system opera-tion. See Bulletin 90-30 for information on Sporlan’sHead Pressure Control Valves.

The discharge bypass valve must be selected to handlethe difference between items 3 and 4 above. If the mini-mum evaporator load (item 4) is zero, the hot gas bypassrequirement is simply the compressor capacity at theminimum allowable evaporating temperature (item 3).The following discussion on Capacity Ratings and theExample show how these factors affect a selection on atypical air conditioning system.

Capacity Ratings – As the Discharge Bypass ValveCapacity Table indicates, valve ratings are dependent onthe evaporating and condensing temperature at the reducedload condition and the refrigerant used. Therefore, once thisinformation and the hot gas bypass requirement in tons isdetermined, a discharge bypass valve can be selected.

Where two valve capacities are shown for the same con-ditions — one for the 0/30 adjustment range and anotherfor the 0/80 adjustment range — the “0/30 psig” valveshould be used because of its greater capacity. Both val-ues are listed as an aid in selecting a valve for a systemwith operating conditions between those shown.

As the capacity table heading indicates, these are valvecapacities, not the system capacity on which the valve isapplied. The ratings are the sum of the hot gas bypassedand the liquid refrigerant for desuperheating, regardless

of whether the liquid is fed through the system TEV or theauxiliary desuperheating TEV. The capacities are basedon an evaporator temperature change of 6°F from a closedposition to the rated opening. This is a nominal ratingvalue based on years of application experience. Since a dis-charge bypass valve is actually a pressure regulatingvalve, it should be pointed out that the capacity ratingsbased on a 6°F evaporator temperature change take intoaccount that a 6°F change @ 40°F on Refrigerant 22 is a9.1 psi change, while on Refrigerant 12 it is only 5.7 psi.The 6°F nominal change is used so all the various pressurechanges do not need to be shown in the table. If addition-al capacity is required and a greater evaporator tempera-ture change can be tolerated, these valves are capable ofopening further. The following table lists various capacitymultipliers for this purpose. For example, an ADRHE-6-0/80 rated for 9.58 tons at a 26°F evaporating temperaturewill start to open at 32°F (26° + 6°); and, when the evapo-rating temperature has dropped to 26°F, the valve will beopen far enough to bypass 9.9 tons of hot gas. If a temper-ature change of 8°F can be tolerated, the valve would startopening at 34°F (26° + 8°) and be open far enough tobypass 9.9 times 1.15 or 11.39 tons of hot gas.

Occasionally, a bypass valve is selected for an evaporatortemperature change of less than 6°F. Multipliers forthose situations are also given in the table below.

Example – Select a discharge bypass valve for a 30 tonRefrigerant 22 air conditioning system with 67% cylinderunloading (4 of 6 cylinders unloaded). Normal operatingconditions are 45°F evaporating temperature and 120°Fcondensing temperature with a minimum condensingtemperature of 80°F due to head pressure control.

When the evaporator load drops below the last step ofcylinder unloading, it is necessary to keep the system on-the-line to maintain proper space temperatures, andavoid frosting of the coil. From the compressor manufac-turer’s capacity table, the compressor capacity in tons atthe minimum allowable evaporating temperature isapproximately 10 tons. If the system had to be on-the-line down to zero load, the bypass valve would have tobypass 10 tons of hot gas. With the necessary system fac-tors — R-22, 26°F evaporating temperature at thereduced load condition, and 80°F condensing tempera-ture — the capacity table is checked for a valve whichcan handle the 10 tons bypass capacity:

The DRHE-6-55/70 AR has a capacity of 13.1 tons atthese conditions. Therefore, if the system must operate tozero load, this would be the proper selection.

However, if the minimum evaporator load is 4.5 tons(15% of total system capacity), an ADRPE-3-0/80 wouldbe the proper selection (valve capacity of 4.86 tons).The only additional information necessary is the valveconnections. While various connections are available,the proper valve connections must be selected tomatch the system’s piping requirements.

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01A104,a431 22.1 02.1 91.1

11.1,A404,A204,22705,C704 43.1 72.1 52.1

/ BULLETIN 90-40

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SLEDOMELBATSUJDA

22

4/1-1-IRDA4/1-1-EIRDA

55/0 – – – 43.0 44.0 65.0 14.0 25.0 66.0 94.0 36.0 97.0 64.0 95.0 57.0 34.0 65.0 07.057/0 54.0 85.0 37.0 05.0 46.0 18.0 05.0 56.0 18.0 74.0 06.0 67.0 93.0 05.0 36.0 33.0 24.0 45.0001/0 14.0 35.0 76.0 24.0 45.0 76.0 14.0 35.0 66.0 83.0 94.0 26.0 43.0 44.0 65.0 13.0 04.0 05.0

2-SRDA2-ESRDA

03/0 – – – – – – – – – 20.3 09.3 19.4 19.2 57.3 47.4 18.2 36.3 85.408/0 37.2 15.3 24.4 77.2 75.3 05.4 97.2 95.3 35.4 48.2 66.3 16.4 38.2 56.3 06.4 17.2 05.3 24.4

3-PRDA3-EPRDA

03/0 – – – – – – – – – 37.5 83.7 13.9 87.5 54.7 14.9 74.5 70.7 49.808/0 56.4 99.5 45.7 68.4 62.6 88.7 59.4 73.6 30.8 31.5 16.6 43.8 41.5 46.6 83.8 89.4 34.6 31.8

6-EHRDA03/0 – – – – – – – – – 8.01 9.31 6.71 9.01 1.41 8.71 5.01 5.31 1.7108/0 21.7 61.9 5.11 96.7 09.9 5.21 29.7 2.01 8.21 44.8 9.01 7.31 55.8 0.11 9.31 42.8 6.01 5.31

a431


55/0 03.0 04.0 15.0 13.0 14.0 35.0 13.0 14.0 35.0 92.0 83.0 94.0 – – – – – –57/0 23.0 34.0 55.0 03.0 93.0 05.0 82.0 73.0 84.0 32.0 13.0 04.0 – – – – – –001/0 62.0 43.0 44.0 42.0 23.0 14.0 42.0 13.0 04.0 12.0 82.0 63.0 – – – – – –

2-SRDA2-ESRDA

03/0 – – – 79.1 06.2 43.3 49.1 65.2 03.3 78.1 64.2 81.3 – – – – – –08/0 20.2 76.2 34.3 58.1 44.2 51.3 58.1 44.2 51.3 – – – – – – – – –

3-PRDA3-EPRDA

03/0 – – – 57.3 59.4 83.6 67.3 69.4 93.6 07.3 98.4 13.6 – – – – – –08/0 47.3 49.4 73.6 53.3 24.4 07.5 63.3 34.4 17.5 – – – – – – – – –

6-EHRDA03/0 – – – 90.7 63.9 1.21 90.7 73.9 1.21 21.7 14.9 1.21 – – – – – –08/0 70.7 43.9 0.21 05.5 62.7 63.9 35.5 13.7 14.9 – – – – – – – – –

A104


55/0 43.0 54.0 75.0 63.0 74.0 06.0 63.0 74.0 95.0 43.0 44.0 65.0 – – – – – –57/0 73.0 84.0 16.0 43.0 54.0 75.0 33.0 24.0 45.0 72.0 63.0 54.0 – – – – – –001/0 03.0 93.0 94.0 82.0 73.0 74.0 72.0 63.0 54.0 52.0 23.0 14.0 – – – – – –

2-SRDA2-ESRDA

03/0 – – – 82.2 79.2 77.3 62.2 39.2 27.3 81.2 38.2 95.3 – – – – – –08/0 21.2 67.2 05.3 41.2 97.2 45.3 51.2 97.2 45.3 11.2 47.2 84.3 – – – – – –

3-PRDA3-EPRDA

03/0 – – – 63.4 66.5 91.7 63.4 76.5 02.7 23.4 26.5 41.7 – – – – – –08/0 18.3 59.4 82.6 88.3 40.5 04.6 09.3 60.5 34.6 58.3 10.5 63.6 – – – – – –

6-EHRDA03/0 – – – 32.8 7.01 6.31 42.8 7.01 6.31 03.8 8.01 7.31 – – – – – –08/0 51.6 99.7 1.01 63.6 62.8 5.01 14.6 23.8 6.01 04.6 23.8 6.01 – – – – – –

A204


55/0 – – – – – – – – – 25.0 66.0 18.0 55.0 96.0 58.0 15.0 46.0 87.057/0 – – – 25.0 56.0 08.0 55.0 07.0 58.0 75.0 27.0 88.0 05.0 36.0 77.0 14.0 25.0 36.0001/0 34.0 45.0 56.0 74.0 06.0 37.0 84.0 06.0 47.0 64.0 75.0 07.0 14.0 25.0 46.0 73.0 74.0 75.0

2-SRDA2-ESRDA

03/0 – – – – – – – – – – – – 53.3 22.4 71.5 22.3 60.4 89.408/0 – – – 01.3 19.3 97.4 21.3 39.3 18.4 81.3 00.4 09.4 12.3 40.4 69.4 41.3 69.3 58.4

3-PRDA3-EPRDA

03/0 – – – – – – – – – – – – 44.6 11.8 49.9 14.6 80.8 19.908/0 – – – 92.5 66.6 61.8 83.5 87.6 03.8 96.5 61.7 77.8 28.5 33.7 89.8 37.5 32.7 68.8

6-EHRDA03/0 – – – – – – – – – – – – 2.21 3.51 6.81 3.21 5.51 8.8108/0 – – – 61.8 3.01 6.21 34.8 6.01 0.31 62.9 7.11 3.41 56.9 2.21 9.41 95.9 1.21 8.41

705&A404


55/0 – – – – – – – – – 35.0 76.0 38.0 45.0 86.0 48.0 94.0 36.0 77.057/0 – – – 35.0 76.0 38.0 55.0 17.0 78.0 65.0 17.0 78.0 84.0 16.0 57.0 93.0 05.0 26.0001/0 34.0 55.0 86.0 74.0 06.0 47.0 74.0 06.0 47.0 44.0 65.0 07.0 04.0 15.0 36.0 63.0 54.0 65.0

2-SRDA2-ESRDA

03/0 – – – – – – – – – – – – 92.3 71.4 51.5 61.3 10.4 59.408/0 – – – 80.3 19.3 28.4 01.3 39.3 58.4 51.3 00.4 39.4 71.3 20.4 69.4 80.3 09.3 28.4

3-PRDA3-EPRDA

03/0 – – – – – – – – – – – – 83.6 80.8 79.9 72.6 59.7 18.908/0 – – – 82.5 07.6 62.8 83.5 18.6 14.8 56.5 61.7 48.8 57.5 82.7 00.9 36.5 31.7 08.8

6-EHRDA03/0 – – – – – – – – – – – – 0.21 3.51 7.81 1.21 4.51 9.8108/0 – – – 91.8 4.01 8.21 54.8 7.01 2.31 32.9 7.11 4.41 35.9 1.21 9.41 4.9 9.11 7.41

C704


55/0 – – – 84.0 16.0 77.0 45.0 96.0 68.0 85.0 47.0 39.0 35.0 86.0 58.0 – – –57/0 16.0 87.0 79.0 16.0 87.0 79.0 06.0 77.0 69.0 35.0 86.0 58.0 34.0 65.0 96.0 – – –001/0 15.0 56.0 18.0 05.0 36.0 97.0 84.0 26.0 77.0 44.0 65.0 07.0 93.0 05.0 26.0 – – –

2-SRDA2-ESRDA

03/0 – – – – – – – – – 25.3 15.4 36.5 83.3 33.4 14.5 – – –08/0 23.3 52.4 03.5 23.3 52.4 03.5 33.3 72.4 23.5 63.3 13.4 83.5 03.3 32.4 82.5 – – –

3-PRDA3-EPRDA

03/0 – – – – – – – – – 47.6 36.8 8.01 47.6 46.8 8.01 – – –08/0 68.5 05.7 63.9 68.5 05.7 63.9 59.5 16.7 05.9 01.6 18.7 57.9 20.6 17.7 36.9 – – –

6-EHRDA03/0 – – – – – – – – – 7.21 3.61 3.02 8.21 5.61 5.02 – – –08/0 34.9 1.21 1.51 34.9 1.21 1.51 76.9 4.21 5.51 1.01 0.31 2.61 1.01 9.21 1.61 – – –


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01 F° ehtrehtehwfosseldrager,gnitaehrepusedroftnaregirferdiuqildnadessapybsagtohehthtobsedulcnidna,gniloocbus.evlavnoisnapxecitatsomrehtgnitaehrepusedyrailixuanarosevlavnoisnapxecitatsomrehtmetsysehthguorhtdefsidiuqil

-GIRFERTNARE EPYTEVLAV

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gisp



SLEDOM"BLUBETOMER"ELBATSUJDA*22 6-EHRD 07/55 9.41 8.91 6.42 1.31 9.61 2.12

riarofdednemmocererasledomesehT.ylnosegnarerutarepmetgninoitidnoc

a431 6-EHRD 53/52 03.7 46.9 4.21 92.6 13.8 7.01A104 6-EHRD 44/23 34.8 0.11 9.31 03.7 94.9 0.21A404 6-EHRD 08/56 – – – 9.61 4.12 3.52

C704 6-EHRD ro07/5544/23 7.71 9.22 9.72 1.51 3.91 9.32

snoT–SEITICAPACEVLAVSSAPYBEGRAHCSIDDETAREPOTOLIP05serutarepmetegrahcsidnodesabseiticapaC F° 52,noisserpmocciportnesievoba F° 01,rosserpmocehttataehrepus F° dna,gniloocbus

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TNAREGIRFER EPYTEVLAV



SLEDOMELBATSUJDA

22

8-BGHS8-EBGHS 5.11 5.51 9.91 1.21 8.51 1.02 2.21 9.51 1.02 4.21 1.61 3.02 5.21 2.61 5.02 7.21 4.61 8.02

51-BGHS51-EBGHS 0.34 0.16 9.08 4.74 7.46 5.48 7.84 9.56 6.58 6.25 6.96 3.98 3.55 5.27 3.29 4.75 9.47 1.59

a431

8-BGHS8-EBGHS 9.7 8.01 0.41 2.8 9.01 0.41 2.8 9.01 0.41 3.8 0.11 1.41 – – – – – –

51-BGHS51-EBGHS 6.03 2.44 5.95 2.33 4.64 3.16 1.43 1.74 0.26 4.63 2.94 1.46 – – – – – –

A104

8-BGHS8-EBGHS 8.7 6.01 8.31 0.8 7.01 9.31 1.8 7.01 9.31 2.8 8.01 0.41 – – – – – –

51-BGHS51-EBGHS 6.92 9.24 1.85 4.23 4.54 2.06 3.33 1.64 9.06 7.53 3.84 3.36 – – – – – –

A204

8-BGHS8-EBGHS 7.21 9.61 1.12 4.31 2.71 2.12 5.31 2.71 2.12 6.31 3.71 4.12 8.31 4.71 5.12 9.31 6.71 7.12

51-BGHS51-EBGHS 6.74 6.66 8.58 5.25 4.07 8.88 0.45 6.17 1.09 7.75 2.57 8.39 8.06 9.77 5.69 9.26 1.08 9.89

705&A404

8-BGHS8-EBGHS 0.31 2.71 5.12 5.31 5.71 6.12 6.31 5.71 6.12 8.31 6.71 8.12 9.31 6.71 8.12 0.41 7.71 0.22

51-BGHS51-EBGHS 6.84 9.76 8.78 2.35 6.17 9.09 8.45 9.27 9.19 8.85 6.67 5.59 5.16 9.87 7.79 4.36 8.08 0.001

C704

8-BGHS8-EBGHS 7.11 9.51 5.02 2.21 1.61 6.02 2.21 1.61 6.02 4.21 3.61 8.02 5.21 4.61 0.12 – – –

51-BGHS51-EBGHS 6.44 0.46 5.58 8.84 7.76 8.88 1.05 8.86 7.98 8.35 1.27 3.39 3.65 7.47 1.69 – – –

*The DRP(E) adjustable remote bulb is obsolete. It may be replaced with the ADRP(E) adjustable model.

When ordering any Discharge Bypass Valve, completely specify the valve by including all the applicable information:

Valve TypeDischargeRegulating

Body StyleI, S, P or H

ExternalEqualizerOmit ifInternallyEqualized

Port Sizein Eighthsof an Inch

AdjustmentRange

0/30, 0/80,55/70, etc.

AdjustableRemote Bulb

FullyAdjustable

0/30 or 0/80 psigor 0/55 psig(ADRI)

ConnectionsSolder or SAE Flare

S HGB E – 8 – 0/100 – 7/8"Solenoid StopFeature

Valve Type -Hot GasBypass

ExternalEqualizer -1/4" SAEOmit if InternallyEqualized

Valve Size AdjustmentRange - psi

Connections -ODF Solder 7/8” ODF1-1/8" ODF

A DR H E 6 0/80 AR 7/8” ODF

VALVE DESIGNATION/ORDERING INSTRUCTIONS

DIRECT ACTING VALVE

PILOT OPERATED VALVE

snoT–SEITICAPACEVLAVDIONELOSSAGTOH001nodesabseiticapaC F° 05sulpnoisserpmocciportnesi,erutarepmetgnisnednoc F° 04, F° 56dnarotaropave F° .sagnoitcus

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22 a431 A104 A204 A404 C704 705TROPEVLAVSSORCAPORDERUSSERP isp–

5 01 5 01 5 01 5 01 5 01 5 01 5 011F3A – EAS4/1

83.0 25.0 13.0 24.0 43.0 74.0 33.0 74.0 43.0 84.0 93.0 45.0 33.0 64.01S3A – FDO8/3ro4/1

– 021S5E FDO4/198.0 52.1 47.0 20.1 08.0 21.1 97.0 21.1 18.0 41.1 57.0 70.1 97.0 01.1

– 031S5E FDO8/31F6BM – EAS8/3

55.1 51.2 72.1 47.1 93.1 19.1 83.1 29.1 14.1 69.1 83.1 49.1 73.1 09.11S6BM 031S6EM FDO8/31S6BM 041S6EM FDO2/12F9BM – EAS8/3

22.2 11.3 48.1 55.2 00.2 97.2 79.1 77.2 20.2 38.2 42.2 61.3 59.1 47.2– 032S9EM FDO8/32S9BM 042S9EM FDO2/12F01BM – EAS2/1

54.3 18.4 48.2 29.3 01.3 92.4 70.3 82.4 31.3 83.4 50.3 13.4 40.3 42.4– 042S01EM FDO2/12S01BM 052S01EM FDO8/52S41BM 052S41EM FDO8/5 96.4 55.6 78.3 63.5 22.4 68.5 71.4 38.5 62.4 69.5 43.4 31.6 31.4 87.52S91BM 052S91EM FDO8/5

39.6 96.9 27.5 39.7 42.6 86.8 51.6 26.8 92.6 18.8 75.6 13.9 01.6 45.82S52BM 072S91EM FDO8/72S52BM 072S52EM FDO8/7

1.11 5.51 41.9 7.21 69.9 9.31 38.9 8.31 1.01 1.41 3.11 9.51 47.9 6.312S52BM 092S52EM FDO8/1-1

SROTCAFNOITCERROCnoitidnocdaoldecuderehttaserutarepmetrotaropaverof

ROTAROPAVEERUTAREPMET F° 04 62 02 0 02- 04-

REILPITLUM 00.1 59. 39. 78. 18. 57.For complete specifications on these solenoid valves, refer to Bulletin 30-10.


HOT GAS SOLENOID VALVES The selection of aSporlan Hot Gas Solenoid Valve involves some of thesame basic items already determined for the selectionof the discharge bypass valve plus one additionalfactor:

1. Refrigerant.2. Minimum allowable evaporating temperature at thereduced load condition.

3. Hot gas bypass requirement in tons - this is not thebypass valve capacity.

4. Allowable pressure drop across valve port - sinceexcessive pressure drop across the solenoid valvereduces the capacity of the DBV, the maximum pres-sure drop for a Refrigerant 134a system should beapproximately 5 psi and for a Refrigerant 22 systemapproximately 10 psi.

Capacity Ratings – Once the data listed above isdetermined, the appropriate solenoid valve can be eas-ily selected from the capacity table. Since the capaci-ties for a given solenoid valve vary considerably witha slight change in pressure drop, the best selection is

the one which keeps the pressure drop as low as pos-sible while matching the solenoid valve and bypassvalve connections.

Example – Based on the data for the earlier DBVselection: Refrigerant 22, 26°F minimum allowableevaporating temperature at the reduced load condi-tion, and either 10 tons or 4.5 tons as the hot gasbypass requirement, the best solenoid valve selectionfor each case would be:

For 10 tons: MB25S2, 7/8” or 1-1/8” ODF connections,and the necessary voltage and cycles.

For 4.5 tons:MB14S2, 5/8” ODF connections, and thenecessary voltage and cycles.

The MB25S2 and MB14S2 would have a pressuredrop of less than 5 psi. Both selections depend onwhether adequate condensing pressure is maintainedyear round with some form of head pressure control.See Bulletin 90-30 for Sporlan’s Head PressureControl Systems.

Example – Based on the data for the DBV selectionexample: Refrigerant 22, 26°F minimum allowableevaporating temperature at the reduced load condi-tion (50 psig), 80°F condensing temperature (144psig), and either 10 tons or 4.5 tons as the hot gasbypass requirement, the following selection proce-dures are used:

For 10 tons: Required TEV capacity is 10 tons times.22 (capacity multiplier from bottom of DBVCapacities Table) or 2.2 tons. The pressure dropacross valve would be approximately 144 minus 50 or94 psi.

Assuming the system required an externally equal-ized, solder type valve, the best selection is the SVE-2. On systems bypassing to zero load, it is better to usethe valve that has a capacity nearest to the desuper-heating requirement rather than the larger model.From the Thermostatic Charge Selection Table, an L1charge is selected for Refrigerant 22 at 26°F evaporat-ing temperature and 25°F suction gas superheat.Therefore, the complete valve specification is SVE-2-L1, 1/2” x 5/8” ODF - 5’.

For 4.5 tons: Required capacity is 4.5 tons times .22 or.99 tons. The pressure drop would be approximatelythe same as for 10 ton requirement, 94 psi. Therefore,the complete valve specification is EGVE-1-L1, 3/8” x1/2” ODF - 5’.

Liquid Line Solenoid Valve – On some systems it maybe necessary to add a small solenoid valve ahead ofthe desuperheating TEV for pump down control. Thisoccurs when the main liquid line solenoid valve islocated near the system TEV, and it is impractical toconnect the liquid line for the desuperheating TEVdownstream of the main solenoid valve. In these casesthe small solenoid valve can be selected from the tableon page 16 by matching the connections with the inletconnection of the desuperheating TEV. Completedetails on solenoid valves are given in Bulletin 30-10.


DESUPERHEATING THERMOSTATIC EXPANSIONVALVES The proper selection procedure for a SporlanDesuperheating TEV involves some of the same itemsalready determined for the selection of the dischargebypass valve plus one additional item:

1. Refrigerant.2. Minimum allowable evaporating temperature at thereduced load condition.

3. Hot gas bypass requirement in tons - this is not thebypass valve capacity.

4. Capacity multiplier from bottom of DBV capacity table- Since a small amount of liquid refrigerant controlledby the TEV can desuperheat the bypassed hot gas, thismultiplier determines the amount necessary for thespecific operating conditions.

The required capacity of the desuperheating TEV isitem 3 multiplied by item 4. Once this capacity isdetermined, the valve can be selected from the capaci-ty table on pages 14 and 15. The proper thermostaticcharge is selected from the table below. Each charge is

applicable over the range of evaporating temperaturesshown in the table for various refrigerants.

Capacity Ratings – As the TEV capacity table shows,valve ratings are based on the evaporating tempera-ture at the reduced load condition and the pressuredrop that exists across the valve. The actual pressuredrop available is a function of the condensing pressureand the equivalent evaporating pressure, plus anypressure losses in the liquid line. Or, the differencebetween the inlet pressure of the TEV and the pres-sure equivalent to the evaporating temperature at thereduced load condition.

The condensed capacity table on pages 14 and 15 cov-ers the air conditioning temperature range only withmodels having both SAE and ODF connections (G andC valves have SAE connections and EG and S valveshave ODF connections). The models shown are appli-cable to the majority of hot gas bypass requirements.For applications beyond the temperature range andcapacity sizes, refer to Bulletin 10-10.

SEGRAHCCITATSOMREHT*sevlavnoisnapxecitatsomrehtgnitaehrepusedrof

TNAREGIRFERSAGNOITCUS*

TAEHREPUSF°

ELBAWOLLAMUMINIMERUTAREPMETGNITAROPAVE

noitidnoCdaoLdecudeRta F°51-urht04 04-urht61-

A104,a43152

2L1L

532L

54 3L

C704,2252

1L 1L5354 2L 2L

705,A404,A20453

1L 1L54

*For suction gas temperatures that require superheats other that those listed above, con-tact Sporlan, or the compressor manufacturer for assistance.

Bulb Size for desuperheating thermostatic expansion valve types G, EG, C, and S is 1/2” x3-1/2” for thermostatic charges L1, L2, and L3.

SEVLAVNOISNAPXECITATSOMREHTGNITAEHREPUSED–SREILPITLUMYTICAPAC

TNAREGIRFER



22 91.0 42.0 82.0 22.0 62.0 13.0 32.0 72.0 23.0 72.0 13.0 63.0 13.0 63.0 14.0 53.0 04.0 54.0A104&a431 12.0 62.0 13.0 42.0 92.0 33.0 52.0 03.0 53.0 92.0 43.0 93.0 – – – – – –

705&A404,A204 42.0 03.0 73.0 82.0 43.0 24.0 92.0 53.0 34.0 33.0 04.0 84.0 83.0 44.0 35.0 34.0 94.0 85.0C704 52.0 03.0 53.0 82.0 33.0 83.0 92.0 43.0 93.0 33.0 83.0 34.0 73.0 24.0 84.0 – – –

snoT–SEITICAPACEVLAVNOISNAPXECITATSOMREHTGNITAEHREPUSEDEPYTEVLAV ELBAWOLLAMUMINIM

–ERUTAREPMETROTAROPAVE F°SNOITCENNOCDRADNATS sehcnI

DEZILAUQEYLLANRETNI DEZILAUQEYLLANRETXE C&GEAS

S&GEFDOEAS FDO EAS FDO 04 02

22TNAREGIRFER5/1-VG 5/1-VGE 5/1-EVG 5/1-EVGE 02.0 22.0

2/1X4/1

2/1X8/3

3/1-VG 3/1-VGE 3/1-EVG 3/1-EVGE 53.0 83.02/1-VG 2/1-VGE 2/1-EVG 2/1-EVGE 54.0 94.0

2/1X8/3

4/3-VG 4/3-VGE 4/3-EVG 4/3-EVGE 57.0 28.01-VG 1-VGE 1-EVG 1-EVGE 00.1 90.1

2/1-1-VG 2/1-1-VGE 2/1-1-EVG 2/1-1-EVGE 06.1 47.12-VC 2-VS 2-EVG 2-EVS 00.2 81.2

8/5X2/13-VC 3-VS 3-EVG 3-EVS 02.3 94.34-VC 4-VS 4-EVC 4-EVS 05.4 09.4

8/7X2/15-VC 5-VS 5-EVC 5-EVS 02.5 76.5

– – 8-EVC 8-EVS 00.8 27.8 8/5X2/1 8/7X8/5a431TNAREGIRFER

8/1-JG 8/1-JGE 8/1-EJG 8/1-EJGE 51.0 51.02/1X4/1

2/1X8/3

6/1-JG 6/1-JGE 6/1-EJG 6/1-EJGE 52.0 82.04/1-JG 4/1-JGE 4/1-EJG 4/1-EJGE 13.0 53.02/1-JG 2/1-JGE 2/1-EJG 2/1-EJGE 06.0 06.0

2/1X8/3

1-JG 1-JGE 1-EJG 1-EJGE 12.1 02.12/1-1-JG 2/1-1-JGE 2/1-1-EJG 2/1-1-EJGE 39.1 19.1

2-JC 2-JS 2-EJG 2-EJS 14.2 93.2 8/5X2/12/1-2-JC 2/1-2-JS 2/1-2-EJC 2/1-2-EJS 10.3 99.2

8/7X2/13-JC 3-JS 3-EJC 3-EJS 26.3 95.3

– – 5-EJC 5-EJS 30.6 89.4 8/5X2/18/7X8/5

– – – 6-EJS 32.7 89.5 –A104TNAREGIRFER

8/1-XG 8/1-XGE 8/1-EXG 8/1-EXGE 61.0 61.02/1X4/1

2/1X8/3

6/1-XG 6/1-XGE 6/1-EXG 6/1-EXGE 72.0 03.04/1-XG 4/1-XGE 4/1-EXG 4/1-EXGE 43.0 73.02/1-XG 2/1-XGE 2/1-EXG 2/1-EXGE 56.0 56.0

2/1X8/3

1-XG 1-XGE 1-EXG 1-EXGE 92.1 92.12/1-1-XG 2/1-1-XGE 2/1-1-EXG 2/1-1-EXGE 70.2 70.2

2-XC 2-XS 2-EXC 2-EXS 95.2 95.2 8/5X2/12/1-2-XC 2/1-2-XS 2/1-2-EXC 2/1-2-EXS 32.3 42.3

8/7X2/13-XC 3-XS 3-EXC 3-EXS 88.3 88.3

– – 5-EXC 5-EXS 74.6 93.5 8/5X2/18/7X8/5

– – – 6-EXS 67.7 74.6 –A204TNAREGIRFER

8/1-LG 8/1-LGE 8/1-ELG 8/1-ELGE 51.0 61.02/1X4/1

2/1X8/3

6/1-LG 6/1-LGE 6/1-ELG 6/1-ELGE 32.0 42.04/1-LG 4/1-LGE 4/1-ELG 4/1-ELGE 92.0 13.02/1-LG 2/1-LGE 2/1-ELG 2/1-ELGE 65.0 95.0

2/1X8/3

1-LG 1-LGE 1-ELG 1-ELGE 20.1 01.12/1-1-LG 2/1-1-LGE 2/1-1-ELG 2/1-1-ELGE 25.1 16.1

2-LC 2-LS 2-ELG 2-ELS 30.2 41.2 8/5X2/13-LC 3-LS 3-ELC 3-ELS 58.2 00.3

8/7X2/14-LC 4-LS 4-ELC 4-ELS 70.4 82.4

– 6-LS 6-ELC 6-ELS 95.5 21.5 8/5X2/18/7X8/5

– – – 7-ELS 21.7 15.6 –


SROTCENNOCEDISYRAILIXUAdnaSROTUBIRTSID

ROTUBIRTSIDREBMUNEPYT

EPYTCSAREBMUN

SEZISNOITCENNOCCSA sehcnITELNI

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FDO2261,0261 4-5-CSA 8/5 8/5 2/13111,2111 4-7-CSA 8/7 8/7 2/16111,5111 5-9-CSA 8/1-1 8/1-1 8/5

8211,6211,7111 7-11-CSA 8/3-1 8/3-1 8/73411,7211,5211 9-31-CSA 8/5-1 8/5-1 8/1-1

DISTRIBUTOR WITH AUXILIARY SIDE CONNECTIONOR AUXILIARY SIDE CONNECTOR (ASC) – Manytimes the distributor with an auxiliary side connec-tion (Series 1650R) is selected and installed by theoriginal equipment manufacturer. When it is appliedin the field, its selection depends on the system’s mainthermostatic expansion valve and the evaporator coil.This is discussed in the Application Section.

The ASC is normally selected and applied in the field.The basic requirement is that it match the TEV andthe distributor on the system. If the part number ofthe refrigerant distributor is available, the ASC canbe selected from the table to the right by matching theappropriate numbers.


TNAREGIRFER–VETGNIRETNEERUTAREPMETDIUQIL F°

0 01 02 03 04 05 06 07 08 09 001 011 021 031 041ERUTAREPMETDIUQILFC,ROTCAFNOITCERROC

22 65.1 15.1 54.1 04.1 43.1 92.1 32.1 71.1 21.1 60.1 00.1 49.0 88.0 28.0 67.0a431 07.1 36.1 65.1 94.1 24.1 63.1 92.1 12.1 41.1 70.1 00.1 39.0 58.0 87.0 17.0A104 06.1 45.1 84.1 34.1 63.1 13.1 52.1 91.1 31.1 60.1 00.1 49.0 78.0 08.0 47.0A204 10.2 19.1 28.1 27.1 26.1 25.1 24.1 23.1 22.1 11.1 00.1 98.0 77.0 56.0 35.0A404 40.2 49.1 48.1 47.1 46.1 45.1 34.1 33.1 22.1 11.1 00.1 98.0 77.0 56.0 35.0C704 96.1 26.1 55.1 94.1 24.1 53.1 82.1 12.1 41.1 70.1 00.1 39.0 58.0 77.0 96.0705 99.1 98.1 97.1 96.1 95.1 05.1 04.1 03.1 02.1 01.1 00.1 98.0 87.0 66.0 15.0


F°

VETSSORCAPORDERUSSERP isp–02 04 06 08 001 021 041 061

PORDERUSSERPFC,ROTCAFNOITCERROC04 85.0 28.0 00.1 51.1 92.1 14.1 35.1 36.1

0&02 05.0 17.0 78.0 00.1 21.1 22.1 23.1 14.1

TEV capacity = TEV rating x CF liquid temperature x CF pressure drop—Example:Actual capacity of a nominal 2 ton R-22 Type S valve at 20°F evaporator, 100 psipressure drop across the TEV, and 90°F liquid temperature entering the TEV =2.18 (from rating chart) x 1.06 (CF liquid temperature) x 0.89 (CF pressure drop) =2.06 tons.

These factors include corrections for liquid refrigerant density and net refrigerating effect and are based on an evaporator temperature of 0°F. However, they may be used for any evap-orator temperature from -40°F to 40°F since the variation in the actual factors across this range is insignificant.

FOR REFRIGERANTS 22, 401A, 404A, 407C, 507

FOR REFRIGERANTS 134a, 402A

snoT–SEITICAPACEVLAVNOISNAPXECITATSOMREHTGNITAEHREPUSEDEPYTEVLAV ELBAWOLLAMUMINIM

–ERUTAREPMETROTAROPAVE F°SNOITCENNOCDRADNATS sehcnI

DEZILAUQEYLLANRETNI DEZILAUQEYLLANRETXE C&GEAS

S&GEFDOEAS FDO EAS FDO 04 02

A404TNAREGIRFER8/1-SG 8/1-SGE 8/1-ESG 8/1-ESGE 51.0 61.0

2/1X4/1

2/1X8/3

6/1-SG 6/1-SGE 6/1-ESG 6/1-ESGE 32.0 42.04/1-SG 4/1-SGE 4/1-ESG 4/1-ESGE 92.0 13.02/1-SG 2/1-SGE 2/1-ESG 2/1-ESGE 65.0 95.0

2/1X8/3

1-SG 1-SGE 1-ESG 1-ESGE 20.1 01.12/1-1-SG 2/1-1-SGE 2/1-1-ESG 2/1-1-ESGE 35.1 06.1

2-SC 2-SS 2-ESG 2-ESS 40.2 41.2 8/5X2/13-SC 3-SS 3-ESC 3-ESS 68.2 00.3

8/7X2/14-SC 4-SS 4-ESC 4-ESS 80.4 82.4

– 6-SS 6-ESC 6-ESS 16.5 11.5 8/5X2/18/7X8/5

– – – 7-ESS 41.7 15.6 –C704TNAREGIRFER

5/1-NG 5/1-NGE 5/1-ENG 5/1-ENGE 81.0 02.02/1X4/1

2/1X8/3

3/1-NG 3/1-NGE 3/1-ENG 3/1-ENGE 23.0 53.02/1-NG 2/1-NGE 2/1-ENG 2/1-ENGE 14.0 44.0

2/1X8/3

4/3-NG 4/3-NGE 4/3-ENG 4/3-ENGE 96.0 47.01-NG 1-NGE 1-ENG 1-ENGE 29.0 99.0

2/1-1-NG 2/1-1-NGE 2/1-1-ENG 2/1-1-ENGE 74.1 85.12-NC 2-NS 2-ENG 2-ENS 48.1 79.1

8/5X2/13-NC 3-NS 3-ENG 3-ENS 49.2 61.34-NC 4-NS 4-ENC 4-ENS 41.4 44.4

8/7X2/15-NC 5-NS 5-ENC 5-ENS 87.4 31.5

– – 8-ENC 8-ENS 53.7 98.7 8/5X2/1 8/7X8/5705TNAREGIRFER

8/1-PG 8/1-PGE 8/1-EPG 8/1-EPGE 41.0 51.02/1X4/1

2/1X8/3

6/1-PG 6/1-PGE 6/1-EPG 6/1-EPGE 22.0 42.04/1-PG 4/1-PGE 4/1-EPG 4/1-EPGE 92.0 03.02/1-PG 2/1-PGE 2/1-EPG 2/1-EPGE 55.0 85.0

2/1X8/3

1-PG 1-PGE 1-EPG 1-EPGE 00.1 80.12/1-1-PG 2/1-1-PGE 2/1-1-EPG 2/1-1-EPGE 05.1 75.1

2-PC 2-PS 2-EPG 2-EPS 00.2 90.2 8/5X2/13-PC 3-PS 3-EPC 3-EPS 97.2 39.2

8/7X2/14-PC 4-PS 4-EPC 4-EPS 99.3 91.4

– 6-PS 6-EPC 6-EPS 94.5 00.5 8/5X2/18/7X8/5

– – – 7-EPS 99.6 63.6 –


F°

–VETSSORCAPORDERUSSERP isp03 05 57 001 521 051 571 002 522 052 572 003

PORDERUSSERPFC,ROTCAFNOITCERROC04 55.0 17.0 78.0 00.1 21.1 22.1 23.1 14.1 05.1 85.1 66.1 37.1

0&02 94.0 36.0 77.0 98.0 00.1 01.1 81.1 62.1 43.1 14.1 84.1 55.1

TEV capacity = TEV rating x CF liquid temperature x CF pressure drop—Example:Actual capacity of a nominal 1-1/2 ton R-404A Type EG valve at -20°F evaporator,125 psi pressure drop across the TEV, and 60°F liquid temperature entering theTEV = 1.26 (from rating chart) x 1.43 (CF liquid temperature) x 0.91 (CF pressuredrop) = 1.64 tons.

/ BULLETIN 90-40

ELBATNOITCELESYTICAPACEVLAVDIONELOSENILDIUQILREBMUNEPYT

NOITCENNOCsehcnI

TROPEZIS

sehcnI

NOITAREGIRFERfoSNOTSEIRES"B"dna"A" DEDNETXESEIRES"E"SNOITCENNOC

METSTFILLAUNAMHTIWDESOLCYLLAMRON 22 a431 A104 A204 A404 C704 705

isp1PORDERUSSERP1P3A – – – elameFTPN8/3

101. 9.0 8.0 9.0 6.0 6.0 8.0 6.01F3A – – – eralFEAS4/11S3A – 021S3E – redloSFDO4/11S3A – 031S3E – redloSFDO8/3

– – 021S5E – redloSFDO4/1051. 6.1 5.1 6.1 0.1 0.1 5.1 0.1

– – 031S5E – redloSFDO8/3– 1P6BM – – elameFTPN8/3

61/3 9.2 7.2 9.2 9.1 9.1 7.2 9.1– 1F6BM – – eralFEAS8/3– 1S6BM – 031S6EM redloSFDO8/3– 1S6BM – 041S6EM redloSFDO2/1– 2P9BM – – elameFTPN8/3

23/9 7.4 4.4 7.4 1.3 1.3 3.4 0.3– 2F9BM – – eralFEAS8/3– – – 032S9EM redloSFDO8/3– 2S9BM – 042S9EM redloSFDO2/1



– – 021S5E – redloSFDO4/1051. 3.2 1.2 3.2 5.1 5.1 1.2 5.1






– – 021S5E – redloSFDO4/1051. 8.2 6.2 8.2 7.1 7.1 6.2 8.1




OFFER OF SALE

The items described in this document and other documents and descriptions provided by Parker Hannifin Corporation, its subsidiaries and its authorized distributors(“Seller”) are hereby offered for sale at prices to be established by Seller. This offer and its acceptance by any customer (“Buyer”) shall be governed by all of the fol-lowing Terms and Conditions. Buyer’s order for any item described in its document, when communicated to Seller verbally, or in writing, shall constitute acceptanceof this offer. All goods or work described will be referred to as “Products”.

1. Terms and Conditions. Seller’s willingness to offerProducts, or accept an order for Products, to or fromBuyer is expressly conditioned on Buyer’s assent tothese Terms and Conditions and to the terms and con-ditions found on-line at www.parker.com/saleterms/.Seller objects to any contrary or additional term orcondition of Buyer’s order or any other documentissued by Buyer.2. Price Adjustments; Payments. Prices stated onthe reverse side or preceding pages of this docu-ment are valid for 30 days. After 30 days, Seller maychange prices to reflect any increase in its costsresulting from state, federal or local legislation,price increases from its suppliers, or any change inthe rate, charge, or classification of any carrier. Theprices stated on the reverse or preceding pages ofthis document do not include any sales, use, orother taxes unless so stated specifically. Unless oth-erwise specified by Seller, all prices are F.O.B.Seller’s facility, and payment is due 30 days fromthe date of invoice. After 30 days, Buyer shall payinterest on any unpaid invoices at the rate of 1.5%per month or the maximum allowable rate underapplicable law.3. Delivery Dates; Title and Risk; Shipment. Alldelivery dates are approximate and Seller shall notbe responsible for any damages resulting from anydelay. Regardless of the manner of shipment, title toany products and risk of loss or damage shall passto Buyer upon tender to the carrier at Seller’s facility(i.e., when it’s on the truck, it’s yours). Unless other-wise stated, Seller may exercise its judgment inchoosing the carrier and means of delivery. Nodeferment of shipment at Buyers’ request beyondthe respective dates indicated will be made excepton terms that will indemnify, defend and hold Sellerharmless against all loss and additional expense.Buyer shall be responsible for any additional ship-ping charges incurred by Seller due to Buyer’schanges in shipping, product specifications or inaccordance with Section 13, herein.4. Warranty. Seller warrants that the Products soldhereunder shall be free from defects in material orworkmanship for a period of twelve months from thedate of delivery to Buyer or 2,000 hours of normaluse, whichever occurs first. This warranty is madeonly to Buyer and does not extend to anyone towhom Products are sold after purchased from Seller.The prices charged for Seller’s products are basedupon the exclusive limited warranty stated above,and upon the following disclaimer: DISCLAIMER OFWARRANTY: THIS WARRANTY COMPRISES THESOLE AND ENTIRE WARRANTY PERTAINING TOPRODUCTS PROVIDED HEREUNDER. SELLER DIS-CLAIMS ALL OTHER WARRANTIES, EXPRESS ANDIMPLIED, INCLUDING MERCHANTABILITY AND FIT-NESS FOR A PARTICULAR PURPOSE.5. Claims; Commencement of Actions. Buyer shallpromptly inspect all Products upon delivery. Noclaims for shortages will be allowed unless reportedto the Seller within 10 days of delivery. No otherclaims against Seller will be allowed unless assertedin writing within 60 days after delivery or, in thecase of an alleged breach of warranty, within 30days after the date within the warranty period onwhich the defect is or should have been discoveredby Buyer. Any action based upon breach of thisagreement or upon any other claim arising out ofthis sale (other than an action by Seller for anyamount due to Seller from Buyer) must be com-menced within thirteen months from the date of ten-der of delivery by Seller or, for a cause of actionbased upon an alleged breach of warranty, withinthirteen months from the date within the warrantyperiod on which the defect is or should have beendiscovered by Buyer.6. LIMITATION OF LIABILITY. UPON NOTIFICATION,SELLER WILL, AT ITS OPTION, REPAIR OR REPLACEA DEFECTIVE PRODUCT, OR REFUND THE PUR-CHASE PRICE. IN NO EVENT SHALL SELLER BELIABLE TO BUYER FOR ANY SPECIAL, INDIRECT,INCIDENTAL OR CONSEQUENTIAL DAMAGES ARIS-ING OUT OF, OR AS THE RESULT OF, THE SALE,DELIVERY, NON-DELIVERY, SERVICING, USE ORLOSS OF USE OF THE PRODUCTS OR ANY PARTTHEREOF, OR FOR ANY CHARGES OR EXPENSESOF ANY NATURE INCURRED WITHOUT SELLER’SWRITTEN CONSENT, EVEN IF SELLER HAS BEEN

NEGLIGENT, WHETHER IN CONTRACT, TORT OROTHER LEGAL THEORY. IN NO EVENT SHALL SELL-ER’S LIABILITY UNDER ANY CLAIM MADE BYBUYER EXCEED THE PURCHASE PRICE OF THEPRODUCTS.7. Contingencies. Seller shall not be liable for anydefault or delay in performance if caused by circum-stances beyond the reasonable control of Seller.8. User Responsibility.The user, through its ownanalysis and testing, is solely responsible for mak-ing the final selection of the system and Product andassuring that all performance, endurance, mainte-nance, safety and warning requirements of theapplication are met. The user must analyze allaspects of the application and follow applicableindustry standards and Product information. If Sellerprovides Product or system options, the user isresponsible for determining that such data andspecifications are suitable and sufficient for all appli-cations and reasonably foreseeable uses of theProducts or systems.9. Loss to Buyer’s Property. Any designs, tools, pat-terns, materials, drawings, confidential informationor equipment furnished by Buyer or any other itemswhich become Buyer’s property, may be consideredobsolete and may be destroyed by Seller after twoconsecutive years have elapsed without Buyer plac-ing an order for the items which are manufacturedusing such property. Seller shall not be responsiblefor any loss or damage to such property while it isin Seller’s possession or control.10. Special Tooling. A tooling charge may beimposed for any special tooling, including withoutlimitation, dies, fixtures, molds and patterns,acquired to manufacture Products. Such specialtooling shall be and remain Seller’s propertynotwithstanding payment of any charges by Buyer.In no event will Buyer acquire any interest in appa-ratus belonging to Seller which is utilized in themanufacture of the Products, even if such apparatushas been specially converted or adapted for suchmanufacture and notwithstanding any charges paidby Buyer. Unless otherwise agreed, Seller shall havethe right to alter, discard or otherwise dispose ofany special tooling or other property in its sole dis-cretion at any time.11. Buyer’s Obligation; Rights of Seller. To securepayment of all sums due or otherwise, Seller shallretain a security interest in the goods delivered andthis agreement shall be deemed a SecurityAgreement under the Uniform Commercial Code.Buyer authorizes Seller as its attorney to executeand file on Buyer’s behalf all documents Sellerdeems necessary to perfect its security interest.Seller shall have a security interest in, and lienupon, any property of Buyer in Seller’s possessionas security for the payment of any amounts owed toSeller by Buyer.12. Improper use and Indemnity. Buyer shallindemnify, defend, and hold Seller harmless fromany claim, liability, damages, lawsuits, and costs(including attorney fees), whether for personalinjury, property damage, patent, trademark or copy-right infringement or any other claim, brought by orincurred by Buyer, Buyer’s employees, or any otherperson, arising out of: (a) improper selection,improper application or other misuse of Productspurchased by Buyer from Seller; (b) any act or omis-sion, negligent or otherwise, of Buyer; (c) Seller’suse of patterns, plans, drawings, or specificationsfurnished by Buyer to manufacture Product; or (d)Buyer’s failure to comply with these terms and con-ditions. Seller shall not indemnify Buyer under anycircumstance except as otherwise provided.13. Cancellations and Changes. Orders shall not besubject to cancellation or change by Buyer for anyreason, except with Seller’s written consent andupon terms that will indemnify, defend and holdSeller harmless against all direct, incidental andconsequential loss or damage. Seller may changeproduct features, specifications, designs and avail-ability with notice to Buyer.14. Limitation on Assignment. Buyer may notassign its rights or obligations under this agreementwithout the prior written consent of Seller.15. Entire Agreement. This agreement contains theentire agreement between the Buyer and Seller andconstitutes the final, complete and exclusive

expression of the terms of the agreement. All prioror contemporaneous written or oral agreements ornegotiations with respect to the subject matter areherein merged. 16. Waiver and Severability. Failure to enforce anyprovision of this agreement will not waive that pro-vision nor will any such failure prejudice Seller’sright to enforce that provision in the future.Invalidation of any provision of this agreement bylegislation or other rule of law shall not invalidateany other provision herein. The remaining provi-sions of this agreement will remain in full force andeffect.17. Termination. This agreement may be terminatedby Seller for any reason and at any time by givingBuyer thirty (30) days written notice of termination.In addition, Seller may by written notice immediate-ly terminate this agreement for the following: (a)Buyer commits a breach of any provision of thisagreement (b) the appointment of a trustee, receiveror custodian for all or any part of Buyer’s property(c) the filing of a petition for relief in bankruptcy ofthe other Party on its own behalf, or by a third party(d) an assignment for the benefit of creditors, or (e)the dissolution or liquidation of the Buyer.18. Governing Law. This agreement and the saleand delivery of all Products hereunder shall bedeemed to have taken place in and shall be gov-erned and construed in accordance with the laws ofthe State of Ohio, as applicable to contracts execut-ed and wholly performed therein and without regardto conflicts of laws principles. Buyer irrevocablyagrees and consents to the exclusive jurisdictionand venue of the courts of Cuyahoga County, Ohiowith respect to any dispute, controversy or claimarising out of or relating to this agreement. Disputesbetween the parties shall not be settled by arbitra-tion unless, after a dispute has arisen, both partiesexpressly agree in writing to arbitrate the dispute. 19. Indemnity for Infringement of IntellectualProperty Rights. Seller shall have no liability forinfringement of any patents, trademarks, copyrights,trade dress, trade secrets or similar rights except asprovided in this Section. Seller will defend andindemnify Buyer against allegations of infringementof U.S. patents, U.S. trademarks, copyrights, tradedress and trade secrets (“Intellectual PropertyRights”). Seller will defend at its expense and willpay the cost of any settlement or damages awardedin an action brought against Buyer based on an alle-gation that a Product sold pursuant to thisAgreement infringes the Intellectual Property Rightsof a third party. Seller’s obligation to defend andindemnify Buyer is contingent on Buyer notifyingSeller within ten (10) days after Buyer becomesaware of such allegations of infringement, andSeller having sole control over the defense of anyallegations or actions including all negotiations forsettlement or compromise. If a Product is subject toa claim that it infringes the Intellectual PropertyRights of a third party, Seller may, at its soleexpense and option, procure for Buyer the right tocontinue using the Product, replace or modify theProduct so as to make it noninfringing, or offer toaccept return of the Product and return the purchaseprice less a reasonable allowance for depreciation.Notwithstanding the foregoing, Seller shall have noliability for claims of infringement based on infor-mation provided by Buyer, or directed to Productsdelivered hereunder for which the designs are speci-fied in whole or part by Buyer, or infringementsresulting from the modification, combination or usein a system of any Product sold hereunder. The fore-going provisions of this Section shall constituteSeller’s sole and exclusive liability and Buyer’s soleand exclusive remedy for infringement ofIntellectual Property Rights.20. Taxes. Unless otherwise indicated, all pricesand charges are exclusive of excise, sales, use,property, occupational or like taxes which may beimposed by any taxing authority upon the manufac-ture, sale or delivery of Products.21. Equal Opportunity Clause. For the performanceof government contracts and where dollar value ofthe Products exceed $10,000, the equal employmentopportunity clauses in Executive Order 11246,VEVRAA, and 41 C.F.R. §§ 60-1.4(a), 60-741.5(a), and60-250.4, are hereby incorporated.


© 2011 Parker Hannifin Corporation 32011 / Bulletin 90-40

Parker Hannifin CorporationSporlan Division206 Lange Drive • Washington, MO 63090 USAphone 636 239 1111 • fax 636 239 9130www.sporlan.com

Discharge Bypass Valves

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