Bosch Rexroth | H-4WEH32J6X6EG24N9K4
H-4WEH32J6X/6EG24N9K4
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The H-4WEH32J6X/6EG24N9K4 valve is manufactured by Bosch Rexroth as part of the WEH Directional Spool Valves series. It directs hydraulic flow in automated machinery and features a nominal size of NG32 to match large-capacity circuit layouts. A maximum flow capability of 1100 l/min allows the valve to handle high-volume pressure or return lines, while a maximum operating pressure of 350 bar supports heavy-duty actuators without loss of control. Subplate mounting shortens change-out time, and six M20 x 80 mounting screws clamp the body securely to the manifold. The ISO 4401-10-09-0-05 porting pattern aligns the inlet and work ports with standardized passages, and the DIN EN 175301-803 (K4) electrical connector links the dual solenoids to machine wiring. A shipping weight of 41.0 kg must be considered when designing the supporting structure and handling equipment.
Pilot circuitry is integrated so that oil is drawn internally from the P port and returned externally through the Y port, minimizing cross-port leakage. The system tolerates pilot pressures up to 250 bar and requires at least 8.5 bar to center the spool during standby. Hydraulic fluid temperatures between -20 and +80 °C and viscosities from 2.8 to 500 mm²/s can be used, giving flexibility in fluid selection. Electronics and seals remain stable at ambient air temperatures from -20 to +50 °C, and the cleanliness level of ISO 4406 20/18/15 keeps wear down on sliding components. Together these limits ensure reliable switching performance in automated hydraulic installations.
Technical Specifications
Ambient Temperature Range (nbr)
-20 to +50 C
Cleanliness Class
ISO 4406 20/18/15
Electrical Connection
DIN EN 175301-803 (K4)
Hydraulic Fluid Temperature (nbr)
-20 to +80 C
Maximum Flow
1100 l/min
Maximum Operating Pressure
350 bar
Maximum Pilot Pressure
250 bar
Minimum Pilot Pressure (pressure-centered)
8.5 bar
Mounting Screws
M20 x 80 (6 pcs)
Mounting Type
Subplate
Nominal Size
NG32
Pilot Oil Return
External (Y)
Pilot Oil Supply
Internal (from P)
Porting Pattern
ISO 4401-10-09-0-05
Viscosity Range
2.8 to 500 mm2/s
Weight (2 Solenoids, Pressure-centered)
41.0 kg
1620 Old Apex Road
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