Bosch Rexroth | 4WRTE25W8-500L-4XH6EG24K31A1M
4WRTE25W8-500L-4XH/6EG24K31/A1M
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The 4WRTE25W8-500L-4XH/6EG24K31/A1M directional control valve belongs to the 4WRTE Directional Control Valves series and is produced by Bosch Rexroth. Intended for hydraulic automation, it meters spool position to steer flow between service lines. The valve is built in size 25, and this frame supports a recommended flow rate of up to 870 l/min so large actuators can be supplied without cavitation. Its manifold interface follows the ISO 4401-08-08-0-05 porting pattern, allowing direct mounting on standardized subplates. Electrical actuation is provided by a 24 V DC coil; during steady operation the electronics draw up to 1.6 A, and peak maneuvers can require an impulse current of 2.7 A. Overall power demand does not exceed 72 VA, keeping heat generation within limits for continuous duty. A built-in position switch can source up to 400 mA to external logic, enabling closed-loop monitoring of spool travel. The assembly weighs 16.8 kg, permitting installation with normal lifting tools.
The hydraulic envelope is rated for an operating pressure of 350 bar on ports P, A, and B, while the return line withstands 250 bar, so the unit handles high-pressure circuits with external tank restriction. Internal passages accept fluid filtered to ISO 4406 cleanliness class 18/16/13 to keep spool motion precise. The solenoid winding tolerates a coil temperature up to 150 °C, and the product functions in ambient conditions from −20 °C to +50 °C, covering common industrial climates. An IP65 housing guards the electrical interface from dust and water jets, allowing outdoor or wash-down installation. These environmental limits set clear boundaries for reliable directional control.
Technical Specifications
Ambient Temperature Max
+50 °C
Ambient Temperature Min
-20 °C
Cleanliness Class (iso 4406)
18/16/13
Impulse Current
2.7 A
Max Coil Temperature
150 °C
Max Current Consumption
1.6 A
Max Flow (recommended)
870 l/min
Max Operating Pressure (p, A, B)
350 bar
Max Power Consumption
72 VA
Max Return Pressure Port T (external)
250 bar
Nominal Supply Voltage
24 V DC
Porting Pattern
ISO 4401-08-08-0-05
Position Switch Output Current (max)
400 mA
Protection Class
IP65
Size (ng)
25
Weight
16.8 kg
1620 Old Apex Road
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