Bosch Rexroth | H-4WEH32J6X6EW110N9ES2DALB10D3
H-4WEH32J6X/6EW110N9ES2DAL/B10D3
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The H-4WEH32J6X/6EW110N9ES2DAL/B10D3 valve is produced by Bosch Rexroth as part of the WEH Directional Spool Valves series. It directs hydraulic flow and shifts actuator movement in automated machinery. The unit is built in nominal size NG 32, giving a passage area matched to high-capacity circuits. A porting pattern of ISO 4401-10-09-0-05 lets the body bolt directly onto standardized subplates without adapters. Ports P, A, and B tolerate a maximum operating pressure of 350 bar, and the J spool passes up to 680 l/min when that pressure is applied, enabling large cylinders to move at full speed. Acceptable fluid viscosity ranges from 2.8 to 500 mm²/s, supporting both light and heavy oils. With two solenoids and a spring-centered design the assembly weighs 41.0 kg, so mounting structures must carry that load.
The ambient temperature window of −20 to +50 °C allows installation in unheated or moderately warm locations, while the permitted hydraulic fluid temperature of −20 to +80 °C avoids seal damage during cold starts or sustained duty. System cleanliness must reach ISO 4406 (c) 20/18/15 to prevent spool sticking. Return line port T withstands 250 bar, and the external drain port Y is limited to 160 bar, so back-pressure design must respect these limits. Pilot control may be supplied with pressures up to 250 bar; actuation begins at 8.5 bar for the spring-centered version or 4.5 bar when the internal X line is used. An internal pressure-reducing valve caps secondary pressure at 45 bar to protect the pilot stage. Stroke adjustment on the NG 32 model changes by 1.5 mm for each turn, permitting precise shift travel settings.
Technical Specifications
Ambient Temperature Range (nbr)
–20 to +50 C
Cleanliness Class
ISO 4406 (c) 20/18/15
Hydraulic Fluid Temp Range (nbr)
–20 to +80 C
Max Flow (j Spool At 350 Bar)
680 l/min
Max Pressure Port T
250 bar
Max Pressure Port Y (external, Ac)
160 bar
Maximum Operating Pressure (p, A, B)
350 bar
Maximum Pilot Pressure
250 bar
Minimum Pilot Pressure (spring-centered)
8.5 bar
Minimum Pilot Pressure (x Internal)
4.5 bar
Nominal Size
NG 32
Porting Pattern
ISO 4401-10-09-0-05
Pressure Reducing Valve Secondary Pressure
45 bar
Stroke Adjustment Per Turn (ng32)
1.5 mm
Viscosity Range
2.8 to 500 mm2/s
Weight (two Solenoids, Spring-centered)
41.0 kg
1620 Old Apex Road
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