Bosch Rexroth | 4WRZE16E100-7X6EG24ETK31A1D3M
4WRZE16E100-7X/6EG24ETK31/A1D3M
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The 4WRZE16E100-7X/6EG24ETK31/A1D3M proportional directional valve is produced by Bosch Rexroth as part of the WRZ Proportional Directional Valves series. It directs flow in hydraulic automation circuits by shifting a centrally guided spool in response to an electrical reference. Valve size 16 sets the port geometry for systems that call for medium flow rates. A nominal flow of 100 l/min at a 10 bar pressure drop confirms the unit’s capacity to handle moderately high volumes. The E-type spool establishes defined metering edges for proportional control characteristics. Internal electronics accept a ±10 V command signal, while a 24 V DC supply provides operating power to the position transducer and amplifier. The DIN EN 175201-804 connector gives a standardized electrical interface for quick wiring. Installation to a manifold is performed through the ISO 4401-07-06-0-94 sub-plate pattern, and overall mass is 13.6 kg.
System safety margins are supported by a maximum operating pressure of 350 bar on the main ports. Return flow limits are specified as 250 bar for an external drain circuit and 30 bar when the return is routed internally, allowing designers to select an appropriate tank line. Pilot oil is supplied and drained internally, which removes the need for external pilot hoses and simplifies mounting. The pilot stage uses size 6 hardware so that the small solenoid valve can shift the main spool with minimal pilot flow. A ZDR 6 DP0-4X/40YM-W80 pressure reducing valve is integrated to keep the pilot pressure at a stable level during load fluctuations. NBR seals are fitted to retain fluid and suit standard mineral hydraulic oils. The valve demands fluid cleanliness no worse than ISO 4406 class 20/18/15 to prevent wear of precision edges. These characteristics complete the functional data required for proportional control in industrial hydraulic machinery.
Technical Specifications
Command Signal Input
±10 V
Electrical Connector
DIN EN 175201-804
Fluid Cleanliness (main)
ISO 4406 20/18/15
Max Operating Pressure (main)
350 bar
Max Return Port Pressure (external)
250 bar
Max Return Port Pressure (internal)
30 bar
Mounting Interface
ISO 4401-07-06-0-94
Nominal Flow (Δp=10 Bar)
100 l/min
Pilot Oil Supply/drain
Internal
Pilot Valve Size
6
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Seals
NBR
Spool Type
E
Supply Voltage
24 V DC
Valve Size
16
Weight
13.6 kg
1620 Old Apex Road
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