4/2- and 4/3- Way Safety/Isolation Valve Model Z4 WEH 10 (Series 4X)

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1 Function s n emergency on off isoltion vlve or on off isoltion/ypss vlve, primrly pplied with servo/proportionl systems Free flow through ports P nd T in ll pilot vlve positions Pilot operted y D 03, spool type directionl control vlve Solenoid opertion (WEH) or hydrulic opertion (WH) Porting pttern to ISO 440-5, NFP T3.5.M R nd NSI 93.7 D 05 Wet pin DC or C solenoids Mnul overrides Individul electricl connectors or centrl terminl ox, see dt sheet R Optionl spool dmping (requires dditionl throttle vlve) ccessories, upon inquiry Stroke limiters on min spool Inductive limit switches on min spool (mechnicl or proximity) 4/2- nd 4/3- Wy Sfety/Isoltion Vlve Model Z4 WEH 0 (Series 4) Size 0 (D 05) PSI (35 r) F GPM (60 L/min) Model Z4WEH 0 E62-4/6...NETZ45 R /06.98 R /06.98 Replces: Ordering code Z4 0 4 * Sfety/isoltion sndwich plte Opertor Electro-hydrulic = WEH Hydrulic = WH Size 0, D 05 = 0 For symols, see pge 2 Series 40 to 49 = 4 (40 to 49; externlly interchngele) Pilot vlve with wet-pin = 6 solenoids 24 VDC = G24 20 VC, 60 Hz = W20-60 For other voltges nd frequencies, see R Without mnul override = no code With mnul override = N With covered mnul override = N9 Externlly piloted, externlly drined (only WH) = no code Internlly piloted, internlly drined = ET Externlly piloted, internlly drined = T Without pilot chokes = no code Pilot choke djustment for meter-in flow control = S Pilot choke djustment for meter-out flow control = S2 Electricl connection: Without nlged plug connector(s) Plug-in connector, for cle or conduit (/2" NPT) For other electricl connections, see R ccessories Inductive limit switch (see pge 4) = K4 = Z45 = QG24 = QG24 = QG24 = Q0G24 Further detils to e written in cler text no code = NR sels, suitle for petroleum oils (HM, HL, HLP) V = FPM sels, suitle for phosphte ester fluids (HFD-R) no code = without pressure reduction to pilot vlve D = Pressure reduction rtio :0,66; use with pilot pressures > 3,000 to 4,600 PSI (20 to 35 r) D2 = Pressure reducing vlve,, 2 model ZDR6DP2-4/75M.. Use with pilot pressures > 3,000 to 4,600 PSI (20 to 35 r) Orifice inserts no code = without orifice insert 08 = 0.03 (0.8 mm) orifice insert 0 = (.0 mm) orifice insert Stroke limiters, see pge 4 no code = without stroke limiter 0 = Stroke limiters oth sides = Stroke limiter on side 2 = Stroke limiter on side No code = No dditionl dt / = dditionl dt Enter this code only for electro-hydrulic opertion 2 n orifice insert (08) must e instlled in port P of models with D2 option. /6

2 R /4.92 Section: Z4WEH 0 E62-4/6...NETZ45 P2 2 2 T2 Symols (Port codes: = component side, 2 = mnifold side) Spool Type Electriclly operted (WEH) Hydrulic operted (WH) = internl = internl = externl = internl = externl = externl Z4WEH 0.../..ET.. Z4WEH 0.../..T.. Z4WH 0.../... E62 P2 2 2 T2 P2 2 2 T2 P2 2 2 T2 E63 P2 2 2 T2 P2 2 2 T2 P2 2 2 T2 E68 P2 2 2 T2 P2 2 2 T2 P2 2 2 T2 E50 P2 2 2 T2 P2 2 2 T2 P2 2 2 T2 Flow re in energized position (2 2) =.96 in 2 (50 mm 2 ) E5 P2 2 2 T2 P2 2 2 T2 P2 2 2 T2 E52 P2 2 2 T2 P2 2 2 T2 P2 2 2 T2 Flow re in energized position (2 2) =.37 in 2 (35 mm 2 ) 2/6

3 R /4.92 Technicl dt (For opertion outside these prmeters, plese consult us!) Generl Weight (pprox.) Electricl opertion Vlve with one solenoid l (kg) 9.2 (4.2) Vlve with two solenoids l (kg) 0. (4.6) Hydrulic direct opertion l (kg) 7.7 (3.5) Pressure reducing vlve: D l (kg). (0.5) D2 l (kg) 2.6 (.2) Spool dmping: S nd S2 l (kg).7 (0.8) Sndwich plte for externl..t.. l (kg). (0.5) Mounting position Optionl Hydrulic Mximum operting pressure Ports nd PSI (r) 4600 (35) Port P with externl pilot PSI (r) 4600 (35) with internl pilot PSI (r) 300 (20) with internl pilot with pressure rtio vlve D PSI (r) 4600 (35) with pressure reducing vlve D2 PSI (r) 4600 (35) Port T (only internl pilot fluid possile) with DC solenoid PSI (r) 2320 (60) with C solenoid PSI (r) 450 (00) Minimum pilot pressure PSI (r) 75 (2) Pilot fluid volume for spool opertion in 3 (cm 3 ) 2.30 (.3) Hydrulic fluid Petroleum oils (HM, HL, HLP) Phosphte ester fluids (HDF-R) Fluid temperture rnge F ( C) NR sels; F ( ) FPM sels; F ( ) Viscosity rnge SUS (mm 2 /s) 3.5 to 2320 (2.8 to 500) Mximum degree of fluid contmintion Clss 8/5 ccording to ISO Therefore, we recommend filter with retention rte of ß Operting time "ON" (From energizing the pilot vlve to the strt of the opening of the spool in the min vlve) t pilot pressure of PSI (r) ~000 (70)= ~2000 (40) = ~300 (20) = 2- nd 3-position vlves ms Operting time "OFF" (spring opertion) 2- nd 3-position vlves ms 30 Operting curves, mesured t ν = 90 SUS (4 mm 2 /s) nd t = 22 F (50 C) Pressure difference p in r (4) (2) (0) (8) (6) (4) (2) = 2; 2 2 = 2 3 = = 2 5 = (40) (80) (20) (60) Flow Q in L/min 3/6

4 R /5.94 ccessories upon inquiry: dimensions in inches (millimeters) Stroke limiter Instlltion options Ordering L L2 Code Stroke limiters t oth ends (95) (49) Stroke limiter t 3.74 end (95) Stroke limiter t end (49) Stroke = 0.23 in (6 mm) ( turn = mm stroke) Stroke limiters limit the stroke of the min spool. Loosen lock nut (8) nd turn djustment screw (9) clockwise, movement of the spool will e reduced. The pilot chmer must e t zero pressure during djustment. 8 Lock nut, 7 mm /F* 9 djustment screw, 5 mm /F* (socket) L L2 /F = Wrench size cross flts T 8 9 Inductive limit switches Spool position monitored Ordering L L2 Code Spool position monitored QG (limit switch on end ) (25) Spool position monitored QG (limit switch on end ) (65) Spool switches nd QG monitored (65) (25) (limit switches on oth ends) Spool 0 position monitored Q0G (limit switches on oth ends, (65) (25) only possile with spool E62 ) Electricl connections re mde y mens of ngled plugs Z. Connections 24 VDC + 20 % 0 % (residul ripple 0 %) Loding: 0.4 mx. (PNP output t 24 VDC) Terminl connections for QG24, QG24 nd QG24: = 0 V 2 = Normlly closed (low to high resistnce) 3 = 24 V + 4 = Normlly open (high to low resistnce) Terminl connections for Q0G24: 4 nd 2 reversed for Normlly open contcts 2 nd 4 reversed for Normlly closed contcts L L V = + 20 % 0 % residul ripple 0 % 3.93 (00) T Lod up to 400 m N.O. N.C. (N.C.) (N.O.) PNP The inductive limit switches cn e connected s normlly open or normlly closed contcts. 4/6

5 Unit dimensions: Model Z4WEH..ET.. nd..t..: dimensions in inches (millimeters) R / (229) P T (0.0) z.96 (50) x Required surfce finish of mting fce x 32 = (R mx 4) z 25 = (R z 6) (86) 7.28 (85) (0.0) 2.06 (52.5) 6.26 (59) 2.06 (52.5) Ø (6.6), 4 Plces 4 3 (28) T 2.36 (60) 3.03 (77) MS threds, 0.39 (0) deep, 4 Plces Model T externlly piloted internlly drined.8 (30) G /4" (25).57 (40) 7.95 (202).57 (40) 6 Model ET internlly piloted internlly drined (83) (5) 5 For item explntion, see pge 6. 5/6

6 R /5.94 Unit dimensions: Z4 WH...: dimensions in inches nd millimeters) (52.5) 6.26 (59) (52.5) Ø (6.6), 4 Plces 4.96 (50) 3. (28) T pprox. 2.4 (63) pprox. 3. (80) (72) MS threds, 0.39 (0) deep, 4 Plces.57 (40) pprox. 6. (55) pprox. 2.3 (60) 6.73 (7) () () G /4 Ø 0.98 (25).8 (30) (27) Nmeplte for whole vlve 2 Nmeplte for pilot vlve 3 Porting pttern for min vlve sndwich to ISO 440-5, NFP T3.5.M R nd NSI 93.7 D 05, oth sides 4 Sndwich plte for externl pilot control,used when internl pilot pressure exceeds the mximum of 275 PSI (50 r) 5 Optionl constnt pressure reduction plte, model 0, pressure rtio :0.66 For use with pilot pressures > 3000 PSI (20 r) to 4600 PSI (35 r) Ordering Code RR (NR sels) RR (FPM sels) 6 Optionl pressure reducing vlve, Model D2, to R For use with pilot pressures > 3000 PSI (20 r) to 4600 PSI (35 r) 7 Spool dmping Optionl pilot chokes (doule throttle/ check vlve, to R ), for meterin or meter-out flow control (depending on mounting position) (shown s meter-in vlve) 8 O-ring plte 9 Pilot vlve to R Model 4 WE 6J.. for spool E62 Model 4 WE 6.. for spools E, 50, E5, E52, E63, nd E 68 0 Solenoids nd my e rotted t 90 intervls Mnul override optionl 2 O-ring 2 mm x 2 mm R-ring 3.0 mm x.6 mm x 2.0 mm (2, 2, P2, nd T2) 3 O-ring 9.25 mm x.78 mm R-ring 9.8 mm x.5 mm x.78 mm (,, P nd T) 4 M6 socket hed cp screws to DIN (length s required) tightening torque.43 l-ft (5.5 Nm) 5 M5 socket hed cp screws (length s required) tightening torque 6.56 l-ft (8.9 Nm) 6 Spce required to remove plug 7 Sndwich plte for externl piloting nd drining 6/6 Mnnesmnn Rexroth Corportion Rexroth Hydrulics Div., Industril, 235 City Line Rod, ethlehem, P Tel. (60) Fx: (60) Rexroth Hydrulics Div., Moile, 700 Old Mnsfield Rod, Wooster, OH Tel. (330) Fx: (330) ll rights reserved Suject to revision Printed in U.S..