Bosch Rexroth | 4WRZE16W6-150-7X6EG24N9ETK31F1D3M
4WRZE16W6-150-7X/6EG24N9ETK31/F1D3M
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The 4WRZE16W6-150-7X/6EG24N9ETK31/F1D3M proportional directional valve belongs to the WRZ Proportional Directional Valves series from Bosch Rexroth and directs hydraulic flow in automated machinery. It receives commands as a current input through the F1 interface so a controller can position the spool with precise amperage. A 24 V DC supply energizes the coils, while the DIN EN 175201-804 connector provides a standardized plug for power and signal lines. The pilot stage is built in size 6E to meter pilot oil accurately before it acts on the main spool. A concealed manual override lets maintenance staff shift the spool during commissioning or power loss. Mineral-oil grades HL and HLP are the approved operating fluids, and NBR seals contain these oils under dynamic conditions. Mounting follows ISO 4401-07-06-0-94 for direct installation on NG16 subplates, and an IP65 housing blocks dust and water spray. The complete valve weighs 13.6 kg, which the manifold must support without distortion.
The unit passes 150 l/min at a 10 bar pressure drop, giving cylinders or motors moderate speed without excessive throttling losses. Its main ports tolerate operating pressures up to 350 bar, allowing the valve to serve in high-pressure power units. The internal pilot channel also endures 350 bar so it can be supplied directly from the system line, whereas an external pilot feed must stay within 100 bar to protect the pilot valve. Back-pressure on the T port is limited to 30 bar, so the tank return line must be sized to keep within this value. The coil insulation withstands temperatures to 150 °C, preventing thermal damage during continuous duty or elevated ambient conditions. These pressure, flow, and thermal limits define the working envelope and ensure stable, repeatable actuation in hydraulic automation circuits.
Technical Specifications
Command Interface
Current Input (F1)
Electrical Connection
DIN EN 175201-804
Hydraulic Fluid
Mineral Oil (HL, HLP)
Manual Override
Concealed
Max Coil Temperature
150 °C
Max External Pilot Pressure
100 bar
Max Internal Pilot Pressure (d3)
350 bar
Max Operating Pressure (main)
350 bar
Max Port T Pressure (internal Drain)
30 bar
Mounting Interface
ISO 4401-07-06-0-94
Nominal Flow
150 l/min (Δp 10 bar)
Pilot Valve Size
6E
Seals
NBR
Supply Voltage
24 V DC
Type Of Protection
IP65
Valve Weight
13.6 kg
1620 Old Apex Road
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