Bosch Rexroth | 4WEH32J6X6EG24N9K4
4WEH32J6X/6EG24N9K4
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The 4WEH32J6X/6EG24N9K4 valve belongs to the WEH Directional Spool Valves series from Bosch Rexroth and directs pressurized fluid between actuator ports in hydraulic automation loops. It is supplied in nominal size NG32, giving it passage dimensions suited to large machine circuits, and mounts on a subplate so service crews can replace it without disturbing pipework. The valve follows the ISO 4401-10-09-0-05 porting pattern to align with standardized manifold layouts, while a 24 V DC rated voltage energizes its two solenoids through a DIN EN 175301-803 (K4) connector for straightforward electrical hookup. Continuous duty is supported up to 280 bar on ports P, A, and B, and the housing allows a maximum flow of 1 100 l/min during full spool travel. When the springs return the spool to center, flow is limited to 750 l/min at 280 bar, preventing excessive surge in the neutral position.
A pilot stage rated for 250 bar enables remote control lines to shift the main spool, yet the valve needs only 8.5 bar minimum pilot pressure to overcome the centering springs and initiate movement. Delivering 45 l/min of pilot flow achieves the shortest switching time, a figure important for high-cycle presses and injection machines. Port Y can be externally drained at up to 250 bar or internally routed (Dc) with a 210 bar limit, giving designers flexibility in back-pressure management. System cleanliness must meet ISO 4406 (c) 20/18/15 to protect the precision fit between spool and body, and a phosphate coating up to 100 µm guards external surfaces against corrosion. The valve weighs 41.0 kg in its two-solenoid, spring-centered configuration, so mounting hardware must support this mass while still allowing access for maintenance.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Electrical Connector
DIN EN 175301-803 (K4)
Flow Limit At 280 Bar (spring-centered)
750 l/min
Max Operating Pressure (p/a/b)
280 bar
Max Pressure Port Y (external)
250 bar
Max Pressure Port Y (internal, Dc)
210 bar
Maximum Flow
1100 l/min
Maximum Pilot Pressure
250 bar
Minimum Pilot Pressure (spring-centered)
8.5 bar
Mounting Type
Subplate
Nominal Size
NG32
Pilot Flow For Shortest Switching Time
45 l/min
Porting Pattern
ISO 4401-10-09-0-05
Rated Voltage
24 V DC
Surface Coating Thickness
100 µm (max)
Weight (two Solenoids, Spring-centered)
41.0 kg
1620 Old Apex Road
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