Bosch Rexroth | H-3WEH10A7-4X6EG24K4QMBG24
H-3WEH10A7-4X/6EG24K4QMBG24
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The H-3WEH10A7-4X/6EG24K4QMBG24 valve belongs to the WEH Directional Spool Valves series manufactured by Bosch Rexroth and directs pressurized hydraulic oil in electro-hydraulic automation systems. Electro-hydraulic actuation moves the main spool under pilot pressure for remote control. Nominal size NG10 sets the flow capacity and matches standard ten millimeter subplates. The unit is configured as a 3-way valve so it connects pressure, tank, and actuator lines. A spring returns the main spool to neutral when pilot pressure is removed. External port X supplies the pilot oil, and external port Y returns it to tank, isolating control flow from the main circuit. Achieving the shortest switching time requires 35 l/min through the pilot stage. The valve tolerates operating pressures up to 350 bar for high-pressure machinery.
The pilot section withstands pressures up to 250 bar, with reliable actuation starting at 10 bar to cover a wide control range. A 24 V DC coil energizes the pilot valve to match common control power supplies. Electrical hookup uses a DIN EN 175301-803 K4 plug that allows quick service. Spool position monitoring on side b outputs a 24 V signal for closed-loop supervision. Subplate mounting lets technicians replace the valve without altering hard plumbing. The ISO 4401-05-05-0-05 port pattern ensures interchangeability across NG10 directional valves. System oil must meet ISO 4406 cleanliness class 20/18/15 to avoid premature wear and sticking.
Technical Specifications
Actuation Type
Electro-Hydraulic
Cleanliness Class
ISO 4406 (c) 20/18/15
Coil Voltage (pilot Valve)
24 V DC
Electrical Connection
DIN EN 175301-803 (K4)
Main Spool Return
Spring
Maximum Operating Pressure
350 bar
Maximum Pilot Pressure
250 bar
Minimum Pilot Pressure
10 bar
Mounting Interface
Subplate
Nominal Size
NG10
Pilot Flow For Shortest Switching Time
35 l/min
Pilot Oil Return
External (Y)
Pilot Oil Supply
External (X)
Porting Pattern
ISO 4401-05-05-0-05
Spool Position Monitoring
Spool b (24 V)
Way Configuration
3-Way
1620 Old Apex Road
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