Bosch Rexroth | 4WRZE16E100-7X6EG24N9K31A1V
4WRZE16E100-7X/6EG24N9K31/A1V
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The 4WRZE16E100-7X/6EG24N9K31/A1V proportional directional valve is manufactured by Bosch Rexroth within the WRZ Proportional Directional Valves series and is used to meter flow and select actuator direction in hydraulic automation. A nominal size of 16 dictates the port diameter so the valve fits midsize manifolds, while a nominal flow of 100 l/min at a 10 bar differential provides the reference performance point for circuit design. Peak demands are covered by a maximum main flow of 460 l/min, and the assembly tolerates system pressures up to 350 bar on the main ports. The coil accepts a ±10 V command signal to position the spool, and a 15 % command overlap sets a defined neutral deadband for stable standby conditions. Continuous energization is possible because the solenoid is rated for a 100 % duty cycle, and a cold coil resistance of 2 Ω at 20 °C sets the current that the drive electronics must supply.
The onboard electronics operate from a 24 V DC supply so the valve integrates easily into standard control panels, and an IP65 protection rating keeps dust and low-pressure water jets from reaching internal wiring during field service. Mounting follows the ISO 4401-07-06-0-94 porting pattern, allowing direct installation on compatible subplates. Pilot drainage through port Y is limited to 30 bar, while the external return line at port T can withstand back-pressures up to 250 bar, enabling flexible tank routing. Hydraulic cleanliness must be maintained at class 20/18/15 per ISO 4406 to protect the precision spool and bore. The solenoid insulation endures temperatures up to 150 °C before degradation, safeguarding operation in hot manifolds. A weight of 13.6 kg in subplate mounting influences handling requirements and determines the needed support structure.
Technical Specifications
Cleanliness Class (main Valve)
20/18/15 (ISO 4406)
Coil Resistance (cold, 20 °c)
2 Ω
Command Value Input
±10 V
Command Value Overlap
15%
Duty Cycle
100%
Max Coil Temperature
150 °C
Max Main Flow
460 l/min
Max Operating Pressure (main)
350 bar
Nominal Flow (Δp=10 Bar)
100 l/min
Nominal Size
16
Port Y Pressure
30 bar
Porting Pattern
ISO 4401-07-06-0-94
Protection Rating
IP65
Return Pressure Port T (external)
250 bar
Supply Voltage (electronics)
24 V DC
Weight (subplate Mounting)
13.6 kg
1620 Old Apex Road
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