Bosch Rexroth | 4WRZ16E100-7X6EG24N9K4D3M
4WRZ16E100-7X/6EG24N9K4/D3M
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The 4WRZ16E100-7X/6EG24N9K4/D3M valve is produced by Bosch Rexroth as part of the WRZ Proportional Directional Valves series and is used to meter hydraulic flow in automation systems. It follows the ISO 4401-07-06-0-94 mounting pattern so it can be bolted directly to standard subplates without adapters. A port bore diameter of 20 mm provides sufficient cross-section for high flow rates while keeping pressure loss modest. The unit passes a nominal flow of 100 l/min at a differential pressure of 10 bar, supporting medium-sized actuators at controlled speeds. The main stage tolerates operating pressures up to 350 bar, allowing it to function in high-pressure circuits. Tank return through the T port is limited to 250 bar when an external drain is used, protecting sealing elements. The Y pilot drain may see a maximum of 30 bar, preventing backpressure that could affect spool positioning. During a 0–100 % command step the pilot stage consumes 5.5 l/min of oil and displaces 4.6 cm³, data that helps size the pilot supply and accumulator.
Each proportional solenoid is supplied with 24 V DC, a common control voltage in mobile and industrial machinery. A coil resistance of 4.8 Ω at 20 °C establishes the electrical load seen by the driver circuit. Current may be increased to 1.5 A per solenoid to reach full spool stroke while staying within thermal limits. A 100 % duty cycle rating means the coils can remain energized continuously without overheating. Connection is made through a DIN EN 175301-803 plug, which supports quick interchange during maintenance. Valve hysteresis does not exceed 6 %, keeping flow deviation low when control signals reverse. An IP65 housing with the specified cable socket blocks dust and low-pressure water jets, permitting installation in typical plant environments. A weight of 13.4 kg affects handling requirements when mounting the assembly on vertical manifolds.
Technical Specifications
Coil Resistance (20 °c)
4.8 Ω
Coil Supply Voltage
24 V DC
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803
Hysteresis
<= 6%
Max Current (per Solenoid)
1.5 A
Max Operating Pressure (main)
350 bar
Max T-port Pressure (ext Drain)
250 bar
Max Y-port Pressure
30 bar
Mounting Pattern
ISO 4401-07-06-0-94
Nominal Flow (Δp=10 Bar)
100 l/min
Pilot Oil Flow (x,y; 0–100% Step)
5.5 l/min
Pilot Oil Volume (0–100% Step)
4.6 cm3
Port Bore Diameter (a,b,p,t)
20 mm
Type Of Protection
IP65 (With Cable Socket)
Weight
13.4 kg
1620 Old Apex Road
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