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Specification: 6/10
Pressure: up to 315 bar
Flow: up to 180 L/min
Direct operated proportional directional valve with electrical position feedback
Closed loop control of the direction and size of a flow
Operation is by proportional solenoids with a central thread and removable coil
For subplate mounting: Porting pattern conforms to ISO 4401
Spring centred control spool
Integrated electronics (OBE) with voltage input or current input (A1 resp. F1)
4WRE separate order: analogue module amplifier
Hydraulic | ||||
Installation | Optional, preferably horizontal | |||
Nominal size | 6 | 10 | ||
Weight | 4WRE...L2X | Kg | 2.2 | 6.3 |
4WREE...L2X | 2.4 | 6.5 | ||
Nominal flow qnom at Δp = 10 bar | L/min | 8, 16, 32 | 25, 50, 75 | |
Hysteresis | % | ≤ 0.1 | ||
Reversal span | % | ≤ 0.05 | ||
Response sensitivity | % | ≤ 0.05 | ||
Max.operating pressure | Ports A, B, P | bar | 315 | |
Port T | bar | 210 | ||
Pressure fluid | Mineral oil (HL, HLP) to DIN 51524 | |||
Other pressure fluids on request! | ||||
Ambient air temperature range | 4WRA...L2X | ℃ | -20℃ to 70℃ (-4° F to 158° F) | |
4WRAE...L2X | ℃ | -20℃ to 50℃ (-4° F to 122° F) | ||
Viscosity range | mm²/s | 20 to 380 (preferably 30 to 46) | ||
Fluid Cleanliness Class | NAS1638 class9 or ISO 4406 class 20/18/15 | |||
Electrical | ||||
1) Solenoid data | ||||
Nominal size | 6 | 10 | ||
Voltage type | DC | |||
Command value signal for 4WREE | ±10V or 4 ~ 20mA | |||
Max.current per solenoid | A | 2.5 | ||
Solenoid coil resistance | Cold value | Ω | 2.7 | 3.7 |
Max.warm value | 4.05 | 5.55 | ||
Duty | % | ED100% | ||
Max.coil temperature | ℃ | 150 | ||
Valve protection to EN 60529 | IP 65 | |||
Control electronics | ||||
Amplifier | 4WRE...L2X | VT-VSPA2-...-L2X | ||
4WREE...L2X | integrated in the valve(OBE) | |||
Supply voltage | Nominal voltage | VDC | 24 | |
Lower limiting value | V | 19.4 | ||
Upper limiting value | V | 35 | ||
Amplifier power consumption | Imax | A | < 2 | |
Impulse current | A | 3 |