Bosch Rexroth | 4WRZE16W6-150-7X6EG24N9ETK31A1D3V
4WRZE16W6-150-7X/6EG24N9ETK31/A1D3V
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The 4WRZE16W6-150-7X/6EG24N9ETK31/A1D3V proportional directional valve belongs to the WRZ Proportional Directional Valves series from Bosch Rexroth and routes hydraulic fluid according to an electrical reference. It operates on a 24 V DC supply that powers the solenoids while a ±10 V command signal positions the spool for closed-loop flow control. The coils draw up to 2.5 A and are insulated to withstand 150 °C, permitting continuous duty in warm manifolds. Electrical connection is through a DIN EN 175201-804 plug sealed to an IP65 rating for dust-tight, water-jet environments. A concealed N9 manual override lets maintenance staff shift the spool without power, and the body mounts to an ISO 4401-07-06-0-94 interface to fit common subplates.
At a 10 bar differential, the valve delivers a nominal flow of 150 l/min for medium-pressure circuits, and its main ports tolerate operating pressures up to 350 bar. The internal pilot supply and drain arrangement designated ET removes the need for external pilot lines, and each service port (a, b, p, t) is machined to 20 mm diameter to reduce flow resistance. The T port can accept back pressures to 30 bar without affecting stability, while an integrated ZDR 6 DP0-4X/40YM-W80 pressure-reducing valve keeps pilot pressure consistent. FKM seals protect against hot, chemically active hydraulic fluids, and the valve weighs 13.6 kg when mounted on its subplate, allowing single-person handling during installation.
Technical Specifications
Command Value Signal
±10 V
Electrical Connection
DIN EN 175201-804
Manual Override
Concealed (N9)
Max Coil Temperature
150°C
Max Operating Pressure (main)
350 bar
Max Solenoid Current
2.5 A
Max T Port Pressure (internal Drain)
30 bar
Mounting Interface
ISO 4401-07-06-0-94
Nominal Flow @ Δp 10 Bar
150 l/min
Pilot Supply/drain
Internal/Internal (ET)
Port Diameter (a,b,p,t)
20 mm
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Seals
FKM
Supply Voltage
24 V DC
Type Of Protection
IP65
Weight (subplate Mounting)
13.6 kg
1620 Old Apex Road
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