4/2 and 4/3 directional shut-off valves, Z4WH 22

  • Size 25
  • Component series 5X
  • Maximum operating pressure 315 bar
  • Maximum flow 650 l/min
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WeightValve with one solenoidkg20.8
Valve with two solenoidskg21.1
Valve witch hydraulic actuationkg20
Switching time adjustmentkg0.8
3-way pressure reducing valvekg0.4
Plate for version “T”kg0.5
Installation positionany
Ambient temperature ranges (NBR seals)°C-30 … +50
Ambient temperature ranges (FKM seals)°C-20 … +50


Maximum operating pressurePort PExternal pilot oil supplybar315
Internal pilot oil supply (without pressure reducing valve)bar210
Internal pilot oil supply (with pressure reducing valve)bar315
Anschluss Abar315
Port Bbar315
Port Xbar315
Port Ybar315
Port Tbar315
Maximum flowl/min650
Minimum pilot pressurebar12
Maximum pilot pressurebar210
Pilot volume for switching processcm³7.7
Hydraulic fluid 1)see table
Hydraulic fluid temperature range (NBR seals)°C-30 … +80
Hydraulic fluid temperature range (FKM seals)°C-20 … +80
Viscosity rangemm²/s2.8 … 500
Maximum admissible degree of contamination of the hydraulic fluid 2)Class 20/18/15 according to ISO 4406 (c)
1)The ignition temperature of the process and operating medium used must be over the maximum solenoid surface temperature.
2)The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter.
Hydraulic fluidClassificationSuitable sealing materialsStandards
Mineral oilHL, HLPNBR, FKMDIN 51524
Fast bio-degradable hydraulic fluidsVDMA 24568
Environmentally compatibleInsoluble in waterHETGNBR, FKM
Soluble in waterHEPGNBR, FKM
Other hydraulic fluids on request


Actuation of the manual override is only possible up to a tank pressure of approx. 50 bar. Avoid damage to the bore of the manual override! (Special tool for the operation, separate order, material no. R900024943). When the manual override is blocked, the actuation of the solenoid must be prevented!

The simultaneous actuation of the solenoids must be prevented!

Switching times (= Contacting at the pilot control valve until start of opening of the control edge in the main valve and change in the pressure value by 5 %)

Inductive position switch type QM: electrical connection

The electric connection is realized via a 4-pole mating connector (separate order) with connection thread M12 x 1.


Connection voltage (DC voltage)V24
Voltage tolerance (connection voltage)+30 %/-15 %
Admissible residual ripple%≤ 10
Max. load capacitymA400
Switching outputs

PNP transistor outputs, load between switching outputs and GND

2, 4Switching outputmA400
3Earthing (GND)V0