Bosch Rexroth | 4WRZE16E150-7X6EG24N9ETK31F1V
4WRZE16E150-7X/6EG24N9ETK31/F1V
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The 4WRZE16E150-7X/6EG24N9ETK31/F1V proportional directional valve belongs to the WRZ Proportional Directional Valves series and is manufactured by Bosch Rexroth for hydraulic automation tasks where accurate flow metering and switching are required. The valve achieves a nominal flow of 150 l/min with a 10 bar differential pressure, and this capacity is supported by 20 mm ports that limit pressure drop across the body. It mounts on subplates conforming to ISO 4401-07-06-0-94, so it can replace or upgrade standard DIN-size components without manifold changes. Internal pilot supply and internal drain simplify installation by eliminating external pilot lines. Proportional actuation is delivered through a 4 to 20 mA command signal, while the coil accepts a 24 V DC supply within a 19 to 35 V DC tolerance range. A cold coil resistance of 2 Ω defines the initial inrush current, and electrical termination is handled through the DIN EN 175201-804 K31 plug to maintain wiring consistency.
The unit weighs 13.6 kg, which suits mounting on medium-sized hydraulic power modules without additional support hardware. Continuous service is possible because the electromagnetic assembly is rated for a 100% duty cycle and can withstand coil temperatures up to 150 °C during sustained excitation. The main stage tolerates operating pressures up to 350 bar, while the internal drain path limits return pressure at port T to 30 bar to protect the pilot section. An IP65 protection class safeguards the enclosure against dust ingress and low-pressure water jets, making the valve suitable for typical industrial environments. Fluid compatibility is enhanced by FKM seals that resist common hydraulic oils and synthetic media.
Technical Specifications
Command Signal
4 to 20 mA
Duty Cycle
100%
Electrical Connection
DIN EN 175201-804 (K31)
Max Coil Temperature
150 °C
Max Operating Pressure (main Valve)
350 bar
Mounting Pattern
ISO 4401-07-06-0-94
Nominal Flow (Δp=10 Bar)
150 l/min
Pilot Supply/drain
Internal/Internal
Port Diameter (a/b/p/t)
20 mm
Protection Class
IP65
Return Pressure Port T (internal Drain)
30 bar
Seals
FKM
Solenoid Coil Resistance (cold)
2 Ω
Supply Voltage
24 V DC (19 to 35 V DC)
Weight
13.6 kg
1620 Old Apex Road
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