Bosch Rexroth | 4WRZ16E150-7X6EG24N9K4V
4WRZ16E150-7X/6EG24N9K4/V
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The 4WRZ16E150-7X/6EG24N9K4/V valve is manufactured by Bosch Rexroth for the WRZ Proportional Directional Valves series and is intended to meter hydraulic flow in automated machinery. The unit follows nominal size 16 so the internal galleries match medium-frame manifolds without undue restriction. A nominal flow of 150 l/min at a 10 bar differential enables reliable cylinder or motor speed control. Ports P, A, and B tolerate up to 350 bar operating pressure, allowing the device to work in high-pressure circuits. Installation uses the ISO 4401-07-06-0-94 interface that aligns pressure passages on standard subplates. A size 6 pilot stage shifts the main spool for precise positioning. The solenoid operates on direct current, and its coil shows 4.8 Ω resistance at 20 °C to match typical 24 V drives. Continuous energization is supported by a 100 percent duty cycle, and wiring is completed through a DIN EN 175301-803 connector for quick servicing.
The control magnet accepts up to 1.5 A, producing proportional force across the full stroke while remaining within most servo-amplifier limits. Coil insulation withstands 150 °C, so elevated ambient temperatures do not impair performance. Tank return through port t is permitted at 250 bar, whereas the drain port Y is limited to 30 bar to protect pilot components. The housing carries an IP65 rating that blocks dust and low-pressure water jets during wash-down procedures. FKM seals resist common hydraulic oils and many synthetic fluids, extending service intervals. A mass of 13.4 kg provides rigid mounting and absorbs pressure pulsations, and the proportional design converts input current directly into controlled spool displacement for smooth axis motion.
Technical Specifications
Coil Resistance (20 °c)
4.8 Ω
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Operating Pressure (p, A, B)
350 bar
Max Port Y Pressure
30 bar
Max Return Port Pressure (t)
250 bar
Mounting Interface
ISO 4401-07-06-0-94
Nominal Flow (10 Bar Δp)
150 l/min
Nominal Size
16
Pilot Valve Size
6
Protection Class
IP65
Seal Material
FKM
Type Of Voltage
DC
Weight
13.4 kg
1620 Old Apex Road
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