Engineering Guide and Valve Selection Information

1 Engineering GuideandValve Selection InformationIndexCvFactor ..3, 7 Coil Enclosures ..12 Cryogenics ..10 Electrical Equipment Enclosures ..6 Flow Charts ..8, 9 Flow Purpose solenoid valves ..4, 5 How To Select A solenoid Valve ..3 Industrial solenoid Valve Applications ..3 Material Selection Guide ..11 Operating Pressure Differential ..3 Power Requirements ..3 Seal Materials & Shading Ring ..7 Specific Gravity ..10 Temperature ..3 Vacuum ..10 Valve Sizing ..7 Viscosity ..10 Voltage ..72 West Coast Customer Service - 800-582-4232GC valves Delivers Quality from the Inside OutWe use only stainless steel hardware on our diaphragms. This includes the pilot ori-fice .. a wear point for many competitive plungers are manufactured exclusively from 430FR stainless steel. Made only bya limited number of steel mills, 430FR is simply the best material available for solenoidoperators.

2 It combines excellent magnetic properties with a high degree of plunger tubes are all TIG welded for superior quality, instead of deep result is a quieter Valve due to better tube head alignment, and a stronger, longer last-ing Valve . Our tubes are designed to exceed a 6000 psi burst believe in quality right down to our bolts and nuts. Most manufacturers savemoney on inexpensive hardware. We use stainless steel, because we believe our valvesshould resist corrosion outside as well as are especially proud of our coil designs. Years ago we decided to end coil prob-lems by standardizing on high temperature coil windings for all our coils. In addition,our standard coil is a NEMA 4/4X valves incorporates only proven time tested designs. The basic operators weredesigned by ITT General Controls and have been in continuous production for over 30years.

3 When combined with our commitment to the highest quality materials, thesedesigns will yield years of trouble free operation. In fact, each operator is designed tooperate trouble free for over 5,000,000 solenoid Valve ApplicationsHow To Select A solenoid ValveWe offer a wide variety of General Purpose SolenoidValves from which to choose. To select the Valve that bestsuits your application, determine the following: Valve Type and Operating ModeAvailable configurations include:2-Way Normally Closed Two pipe connections (inletand outlet) and one orifice to provide On-Off is open when energized, closed when Normally Open Two pipe connections (inletand outlet) and one orifice to provide On-Off is closed when energized, open when Normally Closed Three pipe connections (onealways open to one of the other two) and two orifices(one always open and one always closed) to regulate thedirection of media flow.

4 When energized, the flow isfrom the inlet port through the cylinder port; When de-energized, the flow is from the cylinder port through theexhaust Normally Open Three pipe connections (onealways open to one of the other two) and two orifices(one always open and one always closed) to regulate thedirection of media flow. When de-energized, the flow isfrom the inlet port through the cylinder port. Whenenergized, the flow is from the cylinder port through theexhaust Universal, Diverting & Selecting Three pipeconnections (one always open to one of the other two)and two orifices (one always open and one always closed)to regulate the direction of media flow. valves can beinstalled to provide either normally closed (open whenenergized, closed when de-energized) or normally open(closed when energized, open when de-energized)operation.

5 The Valve can also be connected to select oneof two flow media or to divert media flow from one portto ConnectionsPipe connections (ports) are openings which conduct theflow of the controlled media in and out of the influencing the Selection of pipe sizes are thesystem s existing or designed pipe connection sizes andthe flow requirements (Cv) of the is the amount of water at standard conditions (60 F,specific gravity = 1) in GPM (gallons per minute) whichwill pass through the Valve with a one psi (pound persquare inch) pressure drop across the Valve in the fullopen position. The appropriate Cv will determine whichcombination of pipe and orifice sizes will be required forthe application. Refer to the Valve SIZING and CvFactor pages for additional Operating Pressure DifferentialMaximum operating pressure differential is themaximum difference in pressure (measured in psi or bar)between the inlet and the outlet Valve ports.

6 Factorsinfluencing the maximum operating pressure ratinginclude the pipe connection sizes, orifice size(s), anddesign of TemperatureSealing materials, coil class, body materials, and dutycycle all influence the Valve s temperature temperature is determined by a combinationof media and ambient MediaFlow media is the substance being controlled by thevalve. The media s temperature, pressure, andconcentration will determine the type of body andsealing materials required for the application. Consult theENGINEERING Information section for data onflow media and Valve materials RequirementsVoltage and Cycles (Hertz) will usually be determined bythe system s existing power specifications. VA is ameasure of the solenoid s power consumption. The inrush VA rating is the maximum initial surge ofcurrent required to energize the coil, while holding VAis a lesser current required to hold the Valve in itsenergized position.

7 In either case, the solenoid s amperageis determined by dividing the VA rating by the appliedvoltage. Inrush and holding currents are identical for DCsolenoids, and the rating is given in watts (watts DC =volts x amperes).3 East Coast Customer Service - 800-828-0484 2- & 3-way Vacuum to 2400 psi Cvto Orifices to 3/8" Brass, SS bodieswith Nitrile,Viton, EPR,Teflon, Rulonseals 1/8" to 3/8" NPT portsS30 2- & 3-way Vacuum to 2400 psi Cvto Orifices to 3/8" Brass, SS bodieswith Nitrile,Viton, EPR,Teflon, Rulonseals 1/8" to 3/8" NPT portsS31 3-way, all ports inbody 0 to 200 psi Cvto .38 Orifices to 11/64" Brass, SS bodieswith Nitrile,Viton, seals 1/8" & 1/4" NPT portsS33 Direct Acting 2-way 1 to 250 psi Cvto 29 Orifices to 1-1/2" Brass, SS bodieswith Nitrile,Viton, EPR,Teflon seals 3/8" to 2"NPT portsS21 2-way ZeroDifferential.

8 3-way Vacuum to 200 psi Cvto 23 Orifices to 1-1/4" Brass, SS bodieswith Nitrile, Viton,EPR seals 3/8" to 1-1/2"NPT portsS20 2-way ZeroDifferential Vacuum to 125 psi Cvto 28 Orifices to 1-1/4" Brass, SS bodieswith Nitrile,Viton, EPR seals 1" to 2" NPT portsS27 Piloted Diaphragm 2-way Vacuum to 1200 psi Cvto Orifices to 1-1/8" SS, Brass bodieswith Nitrile,Viton, Teflon seals 1/4" to 1-1/4"portsS40 3-way Fuel OilRecirculatingVa l v e 0 to 275 psi Cvto Orifices to 13/32" Brass body withmetal seat 3/8" to 3/4"NPT portsK13 2-way Fuel Valve 0 to 300 psi Cvto Orifices to 1/4" Die CastAluminum bodywith Nitrile seal 1/8", 1/4" NPT portsPV1 CPiloted PistonLever ActingAutomotive Cvpiloted diaphragm assembly fordirect mount on OEM equipment 1" (inlet) x 3/4" NPT (outlets) manifold 3-way configurations available Brass or Stainless SteelDIRECT OR MANIFOLD MOUNTI nterface Assembies Metering Manual Override DIN molded connector/cable DC Rectified coils Corrosion resistant coatings/seals Timers Stainless Steel trim DC Magnetic Latching operators Nickel PlatingOptionsGeneral Purpose solenoid Valves4 West Coast Customer Service - 800-582-4232 2- & 3-way Vacuum to 2400 psi Cvto Orifices to 1 1/2" Brass, SS bodieswith Nitrile,Viton, EPR,Teflon, Rulonseals 1/8" to 2" NPT portsGENERAL PURPOSEAir & Water 366 F Max.

9 FluidTemp. 2- & 3-way 0 to 2400 psi Cvto 29 Orifices to 1-1/2" Brass, SS bodieswith EPR, Teflon,Rulon seals 1/8" to 2" NPT portsHIGH TEMPERATUREHot Water & Steam 2- & 3-way Vacuum to 2400 psi Cvto 28 Orifices to 1-1/4" Brass, SS bodieswith Nitrile,Viton, EPR,Teflon, Rulonseals 1/8" to 2" NPT portsTO 2" NPT 2-way Brass & SS bodies Normally Closed& Normally Open 1/8" to 2" NPT ports for Ultra-HighVacuum, contactGC ValvesTO 10-6 TORR Specially coatedplungers and tubes Exclusive reinforced seals UltrasonicallyCleaned Intended for liquid oxygen, liquid argon, liquid nitrogenS30, S31 & S40 Zero DifferentialCryogenicVacuum 2- & 3-way SS bodies withNitrile, Viton,EPR, Teflon,Rulon seals 1/8" to 2"ports corrosion resistant coatingsand seal materialsavailableINERT 2-way Normally Closedto 2400 psi 2-way Normally Opento 1200 psi 3/8" Orifice Stainless steelbody and seats 1/4", 3/8", 1/2"NPT portsTO 2400 PSIC hemicalsHigh Pressure Direct Acting & Piloted designs 2- custom engineered Brass, SS, AL, Acetal bodiesManifolds/Assemblies 2-way, Normally Closed 0 to 300 psi 1/8" to 1/2"NPT Fuel Oil Natural Gas LP GasUL/FM/CSA 1/8"to 2" NPTavailable on most 2-wayNormally Closed& Normally OpenDesigns 3-wayNormally Closed.

10 Normally Open &Universal Designs 0 - 300 psiNEMA 7 Safety ShutoffExplosion ProofIndustrial solenoid Valve Applications5 East Coast Customer Service - 800-828-0484 SPACE SAVER6 West Coast Customer Service - 800-582-4232 Electrical Equipment Enclosure DescriptionThe following Information is transcribed from therequirements of NEMA and the American Institute ofElectrical Engineers covering various classifications of theUnderwriters Laboratories. These requirements are listedfor reference purposes only. They are taken from therequirements of the approval associations or engineeringgroups. They are not necessarily an indication of whatshould be sold in the way of control apparatus. GC Valvesdoes not supply all types of enclosures on all valves designs.(Contact GC valves Customer Service for specificcombinations.)