Bosch Rexroth | 4WRL25E1-350S-3XG24Z4M-755
4WRL25E1-350S-3X/G24Z4/M-755
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The 4WRL25E1-350S-3X/G24Z4/M-755 valve belongs to the 4WRL Solenoid Valves series from Bosch Rexroth and is used to regulate hydraulic flow in automated machinery. A nominal size of 25 (NG25) permits installation in circuits that require the NG25 passage area, while the ISO 4401-08-07-0-94 mounting interface matches common subplate layouts to simplify block design. The valve endures 350 bar on ports P, A, and B, enabling operation in high-pressure systems, and it passes up to 900 l/min so that large cylinders or motors receive sufficient fluid. Its coils draw power from a 24 V DC supply and may reach 2.7 A, defining the electrical load on the control cabinet. A response time of 45 ms from 0 to 100 % command at 100 bar supports precise motion sequences. Wiring is completed through a DIN 43650/ISO 4400 M16×1.5 connector with two power pins plus protective earth, and the IP65 housing excludes dust and low-pressure water jets during field use.
The pilot stage passes 24 l/min, and it remains stable because the pilot oil pressure may vary between 10 bar and 250 bar without losing control authority. Ports T, X, and Y are limited to 250 bar, maintaining safety in the return and drain lines. Main-stage leakage stays at or below 1000 cm³/min at 100 bar, reducing unnecessary heat generation, while pilot-valve leakage is held to 500 cm³/min under the same conditions to conserve pump capacity. The complete assembly weighs 18 kg, a factor that determines mounting hardware and support brackets during installation.
Technical Specifications
Connector Type
DIN 43650/ISO 4400 M16x1.5 (2P+PE)
Degree Of Protection
IP65
Leakage Main Stage (100 Bar)
≤1000 cm3/min
Leakage Pilot Valve (100 Bar)
≤500 cm3/min
Max Flow
900 l/min
Max Pressure (t, X, Y)
250 bar
Max Solenoid Current
2.7 A
Max Working Pressure (p, A, B)
350 bar
Mounting Interface
ISO 4401-08-07-0-94
Nominal Size
25 (NG25)
Pilot Oil Pressure Max
250 bar
Pilot Oil Pressure Min
10 bar
Pilot Valve Flow
24 l/min
Power Supply
24 V DC
Response Time 0–100% (x=100 Bar)
45 ms
Weight
18 kg
1620 Old Apex Road
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