4/2 and 4/3 proportional directional valves,, without integrated electronics (OBE) 4WRA

Rexroth
  • Size 6, 10
  • Component series 2X
  • Maximum operating pressure 315 bar
  • Maximum flow 75 l/min

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general

Type 4WRA
Size 6 10
Installation position any, preferably horizontal
Ambient temperature range °C -20 … +70
Storage temperature range °C -20 … +80
Weight kg 2 6.6

hydraulic

Size 6 10
Maximum operating pressure bar 315
Maximum operating pressure Port P bar 315
Port T bar 210
Anschluss A bar 315
Port B bar 315
Maximum flow l/min 42 75
with double flow l/min 80 140
Nominal flow l/min 7
15
26		 30
60
Hydraulic fluid 1) see table
Hydraulic fluid temperature range °C -20 … +80
preferably °C +40 … +50
Viscosity range mm²/s 20 … 380
preferably mm²/s 30 … 46
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) Class 20/18/15 according to ISO 4406 (c)
Hysteresis % ≤ 5
Range of inversion % ≤ 1
Response sensitivity % ≤ 0.5
1) Additional hydraulic fluids upon request
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 fluid Classification Suitable sealing materials Standards
Mineral oils and related hydrocarbons HL, HLP NBR / FKM DIN 51524
Important information on hydraulic fluids:

For more information and data on the use of other hydraulic fluids please contact us.

electrical

Size 6 10
Voltage type Direct voltage
Maximum solenoid current A 2.5
Maximum current consumption of the amplifier A 1.8
of the amplifier (impulse current) A 3
Solenoid coil resistance Cold value at 20 °C Ω 2
Maximum hot value Ω 3
Actuated time % 100
Maximum coil temperature 1) °C + 150
Power supply VDC 24
Supply voltage range V 21 … 35
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