Bosch Rexroth | 4WRZE16E1-100-7X6EG24N9EK31A1D3V
4WRZE16E1-100-7X/6EG24N9EK31/A1D3V
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The 4WRZE16E1-100-7X/6EG24N9EK31/A1D3V proportional directional valve is part of the WRZ Proportional Directional Valves series from Bosch Rexroth. Designed for closed-loop hydraulic automation, it meters flow and directs oil to actuators with size 16 internals and the E1 spool profile. The size 16 classification defines the port diameters and flow galleries chosen for mid-frame presses, molding machines, and test rigs. A nominal flow of 100 l/min at a 10 bar differential lets the valve handle medium to high delivery rates, while the main ports tolerate up to 350 bar operating pressure for heavy-duty circuits. Installation uses the ISO 4401-07-06-0-94 subplate pattern, and external pilot oil supply separates control pressure from load pressure. Proportional movement responds to a ±10 V command, and the onboard electronics draw 24 V DC to power the amplifier stage. Shipping weight is 13.6 kg, which guides handling and manifold support requirements.
Electrical termination is through a DIN EN 175201-804 plug coded K31, which speeds service replacement without rewiring. A concealed manual override identified by code N9 permits mechanical shifting during commissioning while protecting the operator from accidental actuation in service. Drain port Y is limited to 30 bar, so back-pressure in the pilot return must be managed, whereas port T may see up to 250 bar return flow pressure to suit remote tank lines. An integrated pressure-reducing cartridge, type ZDR 6 DP0-4X/40YM-W80, stabilizes pilot pressure to the actuator spool for consistent performance under fluctuating supply conditions. Fluid sealing relies on FKM material, allowing use with mineral oils and many synthetic fluids at higher temperatures. The enclosure attains IP65 protection when the plug is fitted, safeguarding the electronics against dust ingress and water jets in typical industrial environments.
Technical Specifications
Command Signal Input
±10 V
Electrical Connection
DIN EN 175201-804 Plug (K31)
Manual Override
Concealed (N9)
Max Operating Pressure (main)
350 bar
Max Pressure (port Y)
30 bar
Max Return Flow Pressure (port T)
250 bar
Mounting Interface
ISO 4401-07-06-0-94
Nominal Flow (Δp=10 Bar)
100 l/min
Pilot Oil Supply
External
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Seal Material
FKM (V)
Size
16
Spool Symbol
E1
Supply Voltage (electronics)
24 V DC
Type Of Protection
IP65
Weight (subplate, Size 16, Wrze)
13.6 kg
1620 Old Apex Road
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