CAT.EUS70-26 -UKA Direct Operated 3 Port Solenoid Valve

Solenoid Valves Flow Characteristics2.3 Flow coefficient Cv factorThe United States Standard ANSI/(NFPA)T3.21.3:1990: Pneumatic fluid power—Flow rating test procedureand reporting method for fixed orifice componentsdefines the flow coefficient Cv factor by the following formula which is based on testing conducted with a test circuit analogo us toISO 6358.QCv ——————————— ·······················(7) P (P2 Pa)114.5 ——————T1 P : Pressure drop between the static pressure tapping ports [bar]P1 : Pressure of the upstream tapping port [bar gauge]P2 : Pressure of the downstream tapping port [bar gauge]:P2 P1 – PQ : Flow rate [dm3/s standard condition]Pa : Atmospheric pressure [bar absolute]T1 : Upstream absolute temperature [K]Test conditions are P1 Pa 6.5 0.2 bar absolute, T1 297 5K, 0.07 bar P 0.14 bar.This is the same concept as effective area A which ISO6358 stipulates as being applicable only when the pressure drop is smallin relation to the upstream pressure so that the compression of air is negligible.3. Equipment for process fluids(1) Standards conforming toIEC60534-2-3: 1997: Industrial process control valves. Part 2: Flow capacity, Section Three-TestproceduresJIS B 2005: 1995: Test method for the flow coefficient of a valveEquipment standards: JIS B 8471: Regulator for waterJIS B 8472: Solenoid valve for steamJIS B 8473: Solenoid valve for fuel oil(2) Definition of flow characteristicsAv factor: It is the value representing the flow of clean water in m3/s which runs through a valve (equipment for test) when thepressure difference is 1 Pa. It is calculated using the following formula.ρAv Q ·······(8) PAv : Flow coefficient [m2]Q : Flow rate [m3/s] P : Pressure difference [Pa]ρ: Density of fluid [kg/m3](3) Formula of flow rateIt is described by the known unit. Also, the flow characteristics line shown in the Graph (2).In the case of liquid: PQ 1.9 x 106Av ··················(9)GQ : Flow rate [l/min]Av : Flow coefficient [m2] P : Pressure difference [MPa]G : Relative density [water 1]In the case of saturated aqueous vapour:Q 8.3 x 106Av P(P2 0.1) ···(10)Q : Flow rate [kg/h]Av : Flow coefficient [m2] P : Pressure difference [MPa]P1 : Upstream pressure [MPa]: P P1 – P2P2 : Downstream pressure [MPa]Front matter 4

Solenoid Valves Flow Characteristics(How to indicate flow characteristics)32Upstream pressure2P1 1MPa10.90.80.70.60.5P1 0.8MPaEx. 2P1 0.6MPaP1 0.5MPaP1 0.4MPa0.4P1 0.3MPa0.3Ex. 110.90.80.70.60.50.40.3P1 0.2MPa0.20.2P1 0.1MPa0.10.0010.002 0.003 0.0040.010.02 0.03 0.04l3Water flow rate Q0 [ /min] (When Av 1 x 10–6 [m2])Saturated aqueous vapour flow rate Q0 [kg/h] (when Av 1 x 10–6 [m2])Conversion of flow coefficient:Av 28 x 10–6 Kv 24 x 10–6Cv (11)Here,Kv factor: It is the value representing the flow rate of clean water in m3/h which runs through the valve at 5 to 40 C, when thepressure difference is 1 bar.Cv factor (Reference values): It is the value representing the flow rate of clean water in US gal/min which runs through the valveat 60 F, when the pressure difference is 1 lbf/in2 (psi).Values of pneumatic Kv are different from Cv because the testing method is different from each other.0.10.1Pressure differential P [MPa]Graph (2) Flow characteristics lineExample 1)Obtain the pressure difference when 15 [l/min] of water runs through the solenoid valve with an Av 45 x 10–6 [m2].Since Q0 15/45 0.33 [l/min], according to the Graph (2), if reading P when Q0 is 0.33, it will be 0.031 [MPa].Example 2)Obtain the flow rate of saturated aqueous vapour when P1 0.8 [MPa], P 0.008 [MPa] with a solenoid valve with an Av 1.5 x10–6 [m2].According to the Graph (2), if reading Q0 when P1 is 0.8 and P is 0.008, it is 0.7 [kg/h]. Hence, the flow rate Q 0.7 x 1.5 1.05[kg/h].Front matter 5

Solenoid Valves Flow Characteristics(4) Test methodBy attaching the equipment for testing with the test circuit shown in Fig. (3) and running water at 5 to 40 C, measure the flow ratewith a pressure difference of 0.075 MPa. However, the pressure difference needs to be set with a large enough difference so thatthe Reynolds number does not go below a range of 4 x 104.By substituting the measurement results for formula (8) to figure out Av.Test rangeThermometerPressure tapThrottle valve inthe upstream sideEquipment for testPressure tapFlow meter2d 20d6dThrottle valve in thedownstream side 10dFig. (3) Test circuit based on IEC60534-2-3, JIS B 2005Front matter 6

Flow CharacteristicsNote) Use this graph as a guide. In the case of obtaining an accurate flow rate, refer tofront matter pages 1 to 6.For AirHow to read the graphDownstream pressure of valve (P2) MPaThe sonic range pressure to generate a flow rateof 100 l/min (ANR) isP1 0.1 MPa for a ø3 orifice (VX313 ),P1 0.23 MPa for a ø2.2 orifice (VX312 ), andP1 0.55 MPa for a ø1.5 orifice (VX311 ).Flow rate Q l/min (ANR)For WaterHow to read the graphFlow rate Q l/minWhen a water flow of 2 l/min is generated, P 0.033 MPa for a ø3 orifice (VX313 ), P 0.088 MPa for a ø2.2 orifice (VX312 ), and P 0.31 MPa for a ø1.5 orifice (VX311 ).Pressure differential P (P1 – P2) MPaFront matter 7

Applicable Fluid Check ListSingle Unit Series VX31/32/33All Options (Single alMain valve Fixedpoppet SealsFluid Name and Option (Single Unit)Body material Guide pin/Shading coil MEPDMNBRFKMEPDMFFKMFKMFKMEPDMFFKMNBRPPSFKMBrass (C37)EPDMPTFEStainlessFKM Brass ainless steelPTFEPPSFKMFKMStainlessEPDMsteel/Silver StainlessPTFEsteelBrass (C37)/FFKM PTFECopperPPSFKM FKM Brass (C37)NoteBHB—Oil freeNon-leak, Oil free—HBSteam(Max. 183 C)Non-leak, Oil freeFluid (Application)Option symboland body materialBrass(C37)—AACaustic soda (25% )Gas oilSilicon oilSteam systemS(Steam) (Max. 183 C)Steam systemE(Condensation) (Max. 99 C)Vacuum system (for pad) StandardMedium vacuumV(up to 0.1 Pa.abs)PerchloroethyleneAHeliumV–63Non-leak (10 Pa·m /s)VHeated water (Max. 99 C)EStainlesssteelJHHQP—MHMMPNote 1) The leakage amount (10–6 Pa·m3/s) of “V”, “M” optionsare values when differential pressure is 0.1 MPa.Note 2) If using for other fluids, contact SMC. “K”, “M”, “V” options are for non-lube treatment.Manifold Series VVX31/32/33All Options n valve FixedpoppetsealsFluid Name and Option (Manifold)Body material Guide pin/Shading coil materialmaterialNBR NBRFKM FKM Brass (C37)EPDM EPDMFKM FKM Brass (C37)/CopperEPDM EPDMFKM FKM Brass PSB Aluminum is the only available material for the manifold base.Non-leak, Oil freeFluid (Application)Gas oilSilicon oilVacuum system (for pad)Medium vacuum(up to 0.1 Pa.abs)PerchloroethyleneHeliumNon-leak (10–6Pa·m3/s)Option symbolAAStandardVAVVNote 1) The leakage amount (10–6 Pa·m3/s) of “V” options arevalues when differential pressure is 0.1 MPa.Note 2) If using for other fluids, contact SMC.Front matter 8

Glossary of TermsPressure Terminology1. Maximum operating pressure differentialThe maximum pressure differential (the difference betweenthe inlet and outlet pressure) which is allowed for operation,with the valve closed or open. When the downstreampressure is 0 MPa, this becomes the maximum operatingpressure.2. Minimum operating pressure differentialThe minimum pressure differential (differential between theinlet pressure and the outlet pressure) required to keep themain valve fully opened.3. Maximum system pressureThe maximum pressure that can be applied inside thepipelines (line pressure).(The pressure differential of the solenoid valve unit must beless than the maximum operating pressure differential.)4. Withstand pressureThe pressure which must be withstood without a drop inperformance after returning to the operating pressure range.(value under the prescribed conditions)Electrical Terminology1. Apparent power (VA)Volt-ampere is the product of voltage (V) and current (A).Power dissipation (W): For AC , W V.A cosθ. For DC, W V.A.(Note) cosθ shows power factor. cosθ 0.62. Surge voltageA high voltage which is momentarily generated in the shut-offunit by shutting off the power.3. Degree of protectionA degree defined in the “JIS C 0920: Waterproof test ofelectric machinery/appliance and the degree of protectionagainst the intrusion of solid foreign objects”.IP65: Dust-tight, Low jetproof type“Low jetproof type” means that no water intrudes inside theequipment that could hinder it from operating normally bymeans of discharging water for 3 minutes in the prescribedmanner. Take appropriate protection measures, since adevice is not usable in an environment where a water drop issplashed.Front matter 9Others1. MaterialNBR: Nitrile rubberFKM: Fluoro rubberEPDM: Ethylene propylene rubberPTFE: Polytetrafluoroethylene resinFFKM: Perfluoroelastomer2. Oil free treatmentThe degreasing and washing of wetted parts.3. Passage symbolIn the JIS symbol () IN and OUT are in a blockedcondition ( ), but actually in the case of reverse pressure(OUT IN), there is a limit to the blocking.( ) is used to indicate that blocking of reverse pressure is notpossible.

Direct Operated 3 Port Solenoid ValveSeries VX31/32/33For Water, Oil, Steam, AirSingle Unit ValveNormally Closed (N.C.) /Normally Open (N.O.) /Common (COM.)Normally closed (N.C.)Normally open (N.O.)Common (COM.)Orifice sizeVX31 VX32 VX33Model——1.5 mmø 2.2 mmø 3 mmø 4 mmø —11131Port size8, 44, 84, 3 8 Solenoid CoilCoil: Class B, Class H Rated Voltage100 VAC, 200 VAC, 110 VAC,220 VAC, 240 VAC, 230 VAC,48 VAC, 24 VDC, 12 VDC MaterialBodySealBrass, Stainless steelNBR, FKM, EPDM, PTFE, FFKM Electrical Entry Grommet Conduit DIN terminal Conduit terminalManifold BaseCommon SUP/EXH type Solenoid CoilCoil: Class B, Class H Rated Voltage100 VAC, 200 VAC, 110 VAC,220 VAC, 240 VAC, 230 VAC,48 VAC, 24 VDC, 12 VDC Electrical Entry Grommet Conduit DIN terminal Conduit terminalNormally Closed (N.C.) /Normally Open (N.O.) /Common (COM.)ModelVX31 VX32 VX33——1.5 mmø 2.2 mmø 3 mmø 4 mmø —EXH port OUT port IN portNormally closed (N.C.)Normally open (N.O.)Common (COM.)BrassAluminumNBR, FKM, EPDMOrifice size ValveBodyBaseSeal(Common SUP/EXH type)Port size Material141 8, 1 4141

Series VX31/32/33Standard sValve constructionWithstand pressure (MPa)Body materialSeal materialEnclosureEnvironmentAC (Class B coil,with full-wave rectifier)RatedvoltageAC (Class H coil)DCAllowable voltage fluctuationAC (Class B coil,Allowablewith full-wave rectifier)leakageAC (Class H coil)voltageDCCoil insulation typeDirect operated poppet3.0Brass (C37), Stainless steelNBR, FKM, EPDM, PTFE, FFKMDust-tight, Low jetproof (equivalent to IP65)*Location without corrosive or explosive gases100 VAC, 200 VAC, 110 VAC, 220 VAC, 230 VAC, 240 VAC, 48 VAC24 VDC, 12 VDC 10% of rated voltage 5% or less of rated voltage 20% or less of rated voltage 2% or less of rated voltageClass B, Class H Electrical entry, Grommet with surge voltage suppressor (GS) has a rating of IP40.Solenoid Coil SpecificationsDC SpecificationModelVX31VX32VX33Power consumption (W) Temperature rise (C ) Note)4.54574510.560Note) The values are for an ambient temperature of 20 C and at the rated voltage.AC Specification (Class B coil, with full-wave rectifier)ModelVX31VX32VX33Apparent power (VA) Temperature rise (C ) Note)557609.56512 There is no difference in the frequency and the inrush and energised apparent power, since a rectifying circuit is used in the AC (Class B) coil.Note) The values are for an ambient temperature of 20 C and at the rated voltage.AC Specification (Class H coil)ModelVX31VX32VX33Frequency (Hz)506050605060Apparent power ture rise (C ) Note)Note) The values are for an ambient temperature of 20 C and at the rated voltage.2656010095120115

Direct Operated 3 Port Solenoid ValveSeries VX31/32/33For Water, Oil, Steam, AirHow to Order Solenoid Coil AssemblyDC CoilAC/Class B coil (with full-wave rectifier)VX02 1 NVX02 1 N5 GSeriesSeries1231 GR123VX31 VX32 VX33 Rated voltage Note 1)VX31 VX32 VX33 123478JRated voltage Note 1)5624 VDC12 VDCNote 1) Refer to Table (1) for theavailable combinations.Note 1) Refer to Table (1) for theavailable combinations.Electrical entryG - GrommetGS- With grommet surgeC- ConduitT - With conduit terminalTS - With conduit terminal andD - DINDS - DIN with surge100 VAC 50/60 Hz200 VAC 50/60 Hz110 VAC 50/60 Hz220 VAC 50/60 Hz240 VAC 50/60 Hz48 VAC 50/60 Hz230 VAC 50/60 HzElectrical entryG- GrommetC- ConduitT - With conduit terminalTL - With conduit terminalD - DINDL - DIN with lightDO - For DIN (withoutvoltage suppressorsurge voltage suppressorTL - With conduitterminal andlightTZ - With conduitterminal, surgevoltage suppressorand lightConnectorvoltage suppressorDL - DIN with lightDZ - DIN with surgevoltage suppressorsuppressor and lightDO - For DIN (withoutconnector) Refer to Table (1) for the available combinations between each electricaloption and rated voltage.and lightConnectorconnector) Refer to Table (1) for the available combinations between each electricaloption and rated voltage. Surge voltage suppressor is integrated into the AC/Class B coil as standard.Table (1) Rated Voltage – Electrical OptionAC/Class H coilRated voltageVX02 1 N1 G H ZsurgeAC/ Voltage Voltage WithvoltageDC symbolsuppressorSeries123VX31 VX32 VX33 Rated voltage123478JACNote 1)100 VAC 50/60 Hz200 VAC 50/60 Hz110 VAC 50/60 Hz220 VAC 50/60 Hz240 VAC 50/60 Hz48 VAC 50/60 Hz230 VAC 50/60 HzDC123478J56100 V200 V110 V220 V240 V48 V230 V24 V12 VLWithlightNote 1)— Class HZWith lightsurgeand surge Withvoltagevoltage suppressorsuppressorNote 1)———— S —— LZWithlightWith lightand surgevoltagesuppressor ——————DC specification is notavailable.Note 1) Option S, Z are not available as a surge voltage suppresor isintegrated into the AC/Class B coil as standard. When changing coils, AC/DC are not interchangeable with each other, andClass B and H coils are also not interchangeable with each other.Note 1) Refer to Table (1) for theavailable combinations.G - GrommetGS- With grommet surgeClass BSElectrical entryC- Conduitvoltage suppressorT - With conduit terminalTS - With conduit terminal and surge voltage suppressorTL - With conduit terminal and lightTZ - With conduit terminal, surge voltage suppressor andlight Refer to Table (1) for the available combinations between each electricaloption and rated voltage. Name plate part no.ClipAZ-T-VX Valve modelEnter by referring to“How to Order”.Name plateSolenoid coil Clip part no.For VX31: VX021N-10For VX32: VX022N-10For VX33: VX023N-103

Series VX31/32/33For Water /Single UnitModel/Valve SpecificationsN.C.N.O.COM.Passage symbolPassage symbolPassage symbolPort size2221 31 31 3Orifice size(mmø)Model1.52.231.5VX311 -01VX312 -01VX313 -01VX311 -02VX312 -02VX322 -02VX332 -02VX313 -02VX323 -02VX333 -02VX324 -02VX334 -02VX322 -03VX332 -03VX323 -03VX333 -03VX324 -03VX334 -0318(6A)2.214(8A)342.238(10A)34Flow characteristicsMax. operating pressure differential .30.60.20.3Av x 10-6m21.93.85.81.93.8Cv 120.197.90.33Note)Weight(g)3802.00.504.612Max. 530730530730Note) Weight of grommet type. Add 10 g for conduit, 30 g for DIN terminal, and 60 g for terminal type respectively.Also, add 60 g for VX31 , 80 g for VX32 and VX33 respectively for bracket option. Refer to “Glossary of Terms” on front matter 9, for details on the max. operating pressure differential and the max. system pressure.Operating Fluid and Ambient TemperatureOperating fluid temperature ( C)Solenoid valve option (symbol)Standard, G, HE, PDC/AC (Class B)1 to 60—AC (Class H)—1 to 99Power sourceNote) With no freezing.4Ambienttemperature( C)–20 to 60–20 to 60Tightness of Valve (Leakage Rate)Max. operatingpressure differentialFrom 0 to less than 1 MPaNBR, FKM, EPDM1 MPa or moreSeal materialLeakage rate(With water pressure)0.1 cm3/min or less0.2 cm3/min or less

Direct Operated 3 Port Solenoid ValveSeries VX31/32/33For Water/Single UnitHow to Order (Single Unit)Orifice sizeValve/Body configuration024BracketRefer to Table (1) shownbelow for availability.-Solenoid valve optionN.C. / Single unitN.O. / Single unitCOM. / Single unit Bracket is notremovable.Refer to Table (2) shownbelow for availability.With full-wave rectifier,surge voltage suppressorPort sizeRefer to Table (1) shown below for availability.Thread type-Suffix—Oil free-ZElectrical entryRcNPTFGNPTTFN100 VAC 50/60 Hz200 VAC 50/60 Hz110 VAC 50/60 Hz220 VAC 50/60 Hz24 VDC678JG - GrommetGS- With grommet surgeC- ConduitT - With conduit terminalTS - With conduit terminal andConnectorD - DINDS - DIN with surge voltageTL - With conduit terminalDL - DIN with lightDZ - DIN with surgevoltage suppressorRated voltage1234512 VDC240 VAC 50/60 Hz48 VAC 50/60 Hz230 VAC 50/60 Hzsurge voltage suppressorand lightTZ - With conduitterminal, surgevoltage suppressorand light Refer to Table (3) shown below for availability.Refer to page 3 for ordering coil only.Orifice symbol (diameter)VX31VX32VX3301 (1 8 )02 (1 4 )——02 (1 4 )03 (3 8 )——02 (1 4 )03 (3 8 )——12(1.5 mmø) (2.2 mmø)34(3 mmø)(4 mmø) ———— Table (2) Solenoid Valve OptionOptionsymbol-GEPHSeal materialMain valveFixedpoppetsealsNBRNBREPDMEPDMFKMFKMvoltage suppressorand lightDO - For DIN (without connector) DIN type is available with class B insulation only.Table (3) Rated Voltage – Electrical OptionSolenoid valvePort no.(Port size)suppressor Refer to Table (3) for the available combinations between each electrical option(S, L, Z) and rated voltage. Surge voltage suppressor is integrated into the AC/Class B coil as standard.Table (1) Port/Orifice SizeModelNoneWith bracketBBody material/Shading coilmaterialGuide pinmaterialBrass (C37)PPSStainless steelBrass (C37)/Copper StainlesssteelStainless steel/SilverPPSStainless steelCoilinsulationtypeNoteB—HHeated waterB—Rated voltageClass BSsurgeAC/ Voltage Voltage WithvoltageDC symbolsuppressor1100 V2200 V3110 VNote 1)—AC220 V47240 V848 V230 VJ 24 V5DC 612 VLZWithlightWith light andsurge voltagesuppressor Note 1)———— ——Note 1) Option S, Z are not available as a surge voltagesuppresor is integrated into the AC/Class Bcoil as standard.Rated voltageClass HSLFor OilRefer to Table (1) shownbelow for availability.For SteamModel1 G 11 G R1For AirAC/Class B coil (withfull-wave rectifier)0101For WaterVX 31 1 4VX 31 1 4DC, AC/Class H coilZlight andsurgeWith WithAC/ Voltage Voltage Withsurge voltagevoltagelightDC symbolsuppressorsuppressor 100 V1 2200 V 3110 V AC220 V4 ——7240 V ——848 V—— J230 V524 VDC specification is notDCavailable.612 V5

Series VX31/32/33For Oil /Single UnitModel/Valve SpecificationsN.C.N.O.COM.Passage symbolPassage symbolPassage symbolPort size2221 31 31 3O

Pilot Operated 2 Port Valve type N.C./N.O. Port size 1/4 to 2 32 A to 50 A Orifice size mmø 10 to 50 VXR21/22/23 For Water, Oil Water Hammer Relief, Pilot Operated 2 Port Valve type N.C./N.O. Port size 1/2 to 2 Orifice size mmø 20 to 50 VX21/22/23 For Air, Vacuum, Water, Steam, Oil Direct Operated 2 Port Valve type N.C./N.O. Port size 1/8 to .