Bosch Rexroth | 4WRTE16E125P-4X6EG24EK31A5WB15M
4WRTE16E125P-4X/6EG24EK31/A5WB15M
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The 4WRTE16E125P-4X/6EG24EK31/A5WB15M is a directional control valve manufactured by Bosch Rexroth within the 4WRTE Directional Control Valves series. It modulates hydraulic flow for automation tasks that require proportional control of cylinders or motors. The internal electronics run on a 24 VDC supply voltage, and an A5 control interface that accepts a ±10 V command with an enable line links the valve to a motion controller. The actual spool position is returned as a ±10 V signal, allowing closed-loop regulation of flow. Supply quality is maintained by limiting residual ripple to 2.5 Vpp so the solenoid current remains stable. A maximum response sensitivity of 0.05 % ensures that small voltage changes translate into measurable spool movement. Hysteresis is held to 0.1 %, minimizing error between forward and reverse commands. Continuous operation draws up to 1.6 A, while an impulse current of 2.7 A is available to accelerate the spool at start-up.
The hydraulic section is rated for 350 bar working pressure, making the valve suitable for high-pressure industrial circuits. Port T can tolerate 250 bar when routed to an external return line, or 10 bar when the return is internal, giving designers two back-pressure options. Pilot oil can be supplied internally with the return externally vented, which reduces the number of external hoses while keeping control oil clean. A maximum power consumption of 72 VA informs cabinet power supply sizing during continuous duty cycles. Electrical connection is made through a DIN EN 175201-804 K31 plug that locks securely and supports quick service exchange. The housing carries an IP65 protection class, so the unit withstands dust ingress and low-pressure water jets commonly found in production areas. Hydraulic fluid must meet ISO 4406 cleanliness code 18/16/13 to prevent spool wear and maintain flow accuracy.
Technical Specifications
Actual Value Output
±10 V
Control Interface
A5 (±10 V, enable)
Electrical Connector
DIN EN 175201-804 (K31)
Fluid Cleanliness Class
ISO 4406 18/16/13
Hysteresis (max)
0.1%
Impulse Current
2.7 A
Max Current Consumption
1.6 A
Max Operating Pressure
350 bar
Max Port T Pressure (external Return)
250 bar
Max Port T Pressure (internal Return)
10 bar
Max Power Consumption
72 VA
Max Residual Ripple
2.5 Vpp
Pilot Oil Supply/return
Internal/External
Protection Class
IP65
Response Sensitivity (max)
0.05%
Supply Voltage
24 VDC
1620 Old Apex Road
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