Bosch Rexroth | 4WEH32L6X6EW110N9ETS2K4B10P4-5
4WEH32L6X/6EW110N9ETS2K4/B10P4 5
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The 4WEH32L6X/6EW110N9ETS2K4/B10P4 5 valve is manufactured by Bosch Rexroth within the WEH Directional Spool Valves series. It directs hydraulic flow in automated systems using a spool built to symbol L for dependable switching between passages. The unit is produced in size NG32 to match large manifold interfaces, and it carries a maximum flow capacity of 1100 l/min so it can handle high-volume circuits. Ports P, A, and B tolerate operating pressures up to 280 bar, allowing use in power-dense machinery. Pilot oil is taken internally from port ET, and the spent pilot oil is returned internally to port T, simplifying external piping. A pilot flow of 45 l/min is available to achieve the shortest possible actuation time, while the pilot stage withstands pressures up to 250 bar without damage.
The valve’s tank port T is rated for 250 bar, supporting installations where back-pressure is present in the return line. The three-position spring-centered version needs at least 8.5 bar pilot pressure to shift the spool, and the switching time can be tuned with the discharge control S2 feature to match system dynamics. A throttle insert with a 1.0 mm bore, identified as B10, limits surge flow at the pilot inlet, and a preload valve opens at 4.5 bar to protect the control stage from pressure spikes. Electrical connection is made through a DIN EN 175301-803 K4 plug, and the body mounts on an ISO 4401-10-09-0-05 pattern for interchangeability with standard subplates. With two solenoids and the spring-centered return, the assembly weighs 41.0 kg.
Technical Specifications
Electrical Connection
DIN EN 175301-803 K4
Max Flow
1100 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Max Pressure Port T
250 bar
Min Pilot Pressure (3-pos, Spring-centered)
8.5 bar
Mounting Pattern
ISO 4401-10-09-0-05
Pilot Flow (min Switching Time)
45 l/min
Pilot Oil Return
Internal (T)
Pilot Oil Supply
Internal (ET)
Preload Valve Cracking Pressure
4.5 bar
Size
NG32
Spool Symbol
L
Switching Time Adjustment
Discharge Control (S2)
Throttle Insert
Ø1.0 mm (B10)
Weight (two Solenoids, Spring-centered)
41.0 kg
1620 Old Apex Road
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