Pilot operated proportional directional valves

NG 10 to 32

Up to 350 bar , Up to 1600L/min

  • Pilot operated 2-stage proportional directional valve
  • Valve for the control of the size and direction of a flow
  • For subplate mounting, porting pattern to DIN 24 340 form A
  • Spring centred main spool
  • Integrated control electronics
General
Nominal size 10 16 25 27 32
Installation and commissioning guidelines Optional, preferably horizontal
Storage temperature range –20 to + 80
Ambient temperature range 0 to + 50
Weight kg 8.7 11.2 16.8 17 31.5
 
Hydraulic(measured at p=100bar,with HLP46 at 40℃±5℃)
Operating pressure -Pilot control valve Pilot oil supply bar 25 to 315
-Main valve Ports P, A, B bar Up to 315 Up to 350 Up to 350 Up to 210 Up to 350
Return  pressure Port T(Pilot oil drain) Internal bar Static < 10
External bar Up to 315 Up to 250 Up to 250 Up to 210 Up to 250
Port Y bar Static < 10
Nominal flow qVnom ±10% at Δp=10bar (Δp = valve pressure differential) L/min 25 50 – 125 – 220 – – – 440
100 180 350 500 600
Flow of main valve (max. permissible) L/min 170 460 870 1000 1600
Pilot oil flow at port X or Y with a step form of input signal from 0 to 100 % (315 bar) L/min 4.1 8.5 11.7 11.7 13
Pressure fluid Mineral oil(HL,HLP)to DIN 51 524 Phosphate ester (HFD-R)
Pressure fluid temperature range 10 to 80, preferably 40 to 50
Viscosity range mm2/s 20 to 380, preferably 30 to 45
Degree of contamination Maximum permissible degree of contamination of the pressure fluid is to NAS 1638. A filter with a minimum retention rate of βx = 75 is recommended
Pilot control valve Class 7 x = 5
Main valve Class 9 x = 7
Hysteresis % ≤1
Response sensitivity % ≤0.5
 
Electrical
Voltage type DC
Electrical connection Plug-in connector to  DIN EN175 201-804
Power, max. W 72 (average = 24W)
Control electronics Integrated into the valve

4WRKE10、16、25、27、32...L3X Pilot Operated Proportional Directional Valve

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