Bosch Rexroth | H-4WEH25E6X6EW110N9K410N08
H-4WEH25E6X/6EW110N9K4/10N08
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The H-4WEH25E6X/6EW110N9K4/10N08 valve belongs to the WEH Directional Spool Valves series from Bosch Rexroth and directs hydraulic flow in automated machinery. It is built in nominal size NG25, and its 4/3-way function uses an E-type spool to alternately connect or block working lines. A spring-centered return recenters the spool when pilot pressure is removed, while the external X pilot supply must reach at least 13 bar for reliable shifting. Drained pilot oil is routed through the external Y port to tank. When the E symbol path is pressurized to 350 bar, the housing passes up to 650 l/min, making the unit suitable for circuits with high actuator demand.
Ports P, A, and B are rated for 350 bar, the pilot stage withstands 250 bar, and port T shares the same 250 bar limit to protect the return line. A pilot flow of 35 l/min achieves the shortest switching time in rapid cycles. Electrical power reaches the two solenoids through a DIN EN 175301-803 K4 connector, and a concealed N9 manual override allows local operation during setup or service. The mounting face follows ISO 4401-10-09-0-05 so the valve attaches to standard subplates, and the spring-centered two-solenoid version weighs 19.0 kg.
Technical Specifications
Control Spool Return
Spring-Centered
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Flow (symbol E, 350 Bar)
650 l/min
Max Operating Pressure (p, A, B)
350 bar
Max Pilot Pressure
250 bar
Max Pressure Port T
250 bar
Min Pilot Pressure (spring-centered)
13 bar
Nominal Size
NG25 (W.H 25)
Pilot Flow For Shortest Switching
35 l/min
Pilot Oil Return
External (Y)
Pilot Oil Supply
External (X)
Porting Pattern
ISO 4401-10-09-0-05
Spool Type
E
Valve Function
4/3-Way
Weight (2-solenoid, Spring-centered)
19.0 kg
1620 Old Apex Road
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