Bosch Rexroth | 4WRZE16W6-150-7X6EG24N9ETK31A1M
4WRZE16W6-150-7X/6EG24N9ETK31/A1M
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The 4WRZE16W6-150-7X/6EG24N9ETK31/A1M valve belongs to the WRZ Proportional Directional Valves series manufactured by Bosch Rexroth for precise hydraulic automation. It meters flow at 150 l/min when the pressure drop is 10 bar and withstands operating pressures up to 350 bar, making it suitable for high-pressure circuits. A ±10 V command signal adjusts the spool position, while an internal supply of 24 V DC powers the electronics. The pilot stage works with pressures up to 25 bar to achieve responsive control. Mounting follows the ISO 4401-07-06-0-94 pattern, and the A, B, P, and T ports are each 20 mm in diameter, matching common manifolds. An IP65 enclosure keeps dust and water jets out so the valve can be installed on exposed machinery.
The unit operates in ambient temperatures up to 50 °C and accepts HL or HLP mineral oils defined by DIN 51524, with fluid temperatures permitted up to 80 °C. Total hysteresis is held to 6 % or less, supporting repeatable actuator positioning. A concealed manual override lets technicians shift the spool during maintenance without energizing the coil. The internal T port tolerates return pressures up to 30 bar, accommodating systems that maintain backpressure. Electrical connection is provided through a plug that meets DIN EN 175201-804, giving a standardized interface for wiring. The assembled valve weighs 13.6 kg, so one technician can install or replace it without lifting equipment.
Technical Specifications
Ambient Temp Max
+50 °C
Command Signal
±10 V
Electrical Connection
DIN EN 175201-804
Hydraulic Fluid
HL, HLP (DIN 51524)
Hydraulic Fluid Temp Max
+80 °C
Hysteresis
≤ 6%
Ip Rating
IP65
Manual Override
Concealed
Max Operating Pressure
350 bar
Nominal Flow
150 l/min (∆p=10 bar)
Pilot Pressure Max
25 bar
Port Diameter (a/b/p/t)
20 mm
Port Pattern
ISO 4401-07-06-0-94
Return Pressure Port T (internal)
30 bar
Supply Voltage
24 V DC
Weight
13.6 kg
1620 Old Apex Road
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