Bosch Rexroth | 4WRZ16EA150-7X6EG24N9K4V
4WRZ16EA150-7X/6EG24N9K4/V
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The 4WRZ16EA150-7X/6EG24N9K4/V valve is manufactured by Bosch Rexroth for the WRZ Proportional Directional Valves series and directs hydraulic flow in automated circuits. It uses size 16 construction to fit medium-capacity manifolds, and a nominal flow of 150 l/min at 10 bar differential pressure supports cylinders and motors that need steady throughput. The mounting interface follows ISO 4401-07-06-0-94, allowing direct placement on standard subplates. Main stage pressure capability is 350 bar, so the valve can be installed in high-pressure systems, while the return port tolerates 250 bar when drained externally to avoid backpressure issues. Both the pilot oil supply and the pilot oil drain are external, giving designers freedom to manage control oil separately from the main flow. Hysteresis is kept at or below 6 percent to maintain predictable spool positioning.
The solenoid coil runs from a 24 V DC supply rail, and its maximum current draw is 1.5 A to stay within typical driver limits. A cold resistance of 4.8 Ω defines the inrush behavior, and the winding can reach 150 °C without damage for continuous duty. With a suitable socket fitted, the enclosure achieves IP65 protection, blocking dust and low-pressure water jets. Electrical termination is made through the DIN EN 175301-803 connector, simplifying field service. FKM seals tolerate hydraulic oil and elevated temperatures, promoting long service intervals. The complete assembly weighs 13.4 kg, so mounting hardware must support that mass during installation.
Technical Specifications
Coil Resistance (20 °c)
4.8 Ω
Electrical Connection
DIN EN 175301-803
Hysteresis
≤ 6%
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Main Valve Pressure
350 bar
Max Return Port Pressure (external)
250 bar
Mounting Interface
ISO 4401-07-06-0-94
Nominal Flow
150 l/min (Δp 10 bar)
Pilot Oil Drain
External
Pilot Oil Supply
External
Protection Type
IP65 (with socket)
Seals
FKM
Size
16
Supply Voltage
24 V DC
Weight
13.4 kg
1620 Old Apex Road
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