Bosch Rexroth | H-4WEH16E7X6EG24N9ES2K4B10D3
H-4WEH16E7X/6EG24N9ES2K4/B10D3
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The H-4WEH16E7X/6EG24N9ES2K4/B10D3 valve belongs to the WEH Directional Spool Valves series and is produced by Bosch Rexroth. It uses spool symbol E, giving a flow path suited to rapid directional changes, and supports a nominal size of NG16 for medium–flow manifolds. Subplate mounting aligns with the ISO 4401-07-07-0-05 porting pattern so that the unit fits standard hydraulic bases. Pilot oil is supplied internally through channel E while return flow is routed externally via port Y. With spool E in an NG16 body, the valve passes up to 300 l/min without excessive pressure drop. The solenoid is powered by a 24 V DC supply, and the electrical lead is taken through a DIN EN 175301-803 connector coded K4.
System pressure limits reach 350 bar on pressure, A, and B ports, 250 bar on the tank port t, and 210 bar on the drain port y when connected to a remote drain. A built-in D3 pressure reducing valve trims pilot pressure, and its secondary side is fixed at 45 bar to stabilize actuation forces. Dynamic behavior can be tuned through the S2 switching-time adjustment feature, while a 1.0 mm throttle insert designated B10 moderates pilot flow for smoother shifting. By holding the pilot circuit at the set value, the actuator sees consistent force regardless of fluctuating main line pressure. These measures enable reliable service under high pressure with controlled response and minimal overshoot.
Technical Specifications
D3 Secondary Pressure
45 bar
Electrical Connection
DIN EN 175301-803 (K4)
Flow Capacity (spool E, Ng16)
300 l/min
Max Pressure (p, A, B)
350 bar
Max Pressure (t Port)
250 bar
Max Pressure (y Port, Dc)
210 bar
Mounting Type
Subplate Mounting
Nominal Size
NG16
Pilot Oil Return
External (Y)
Pilot Oil Supply
Internal (E)
Porting Pattern
ISO 4401-07-07-0-05
Pressure Reducing Valve
D3
Spool Symbol
E
Supply Voltage
24 V DC
Switching Time Adjustment
S2
Throttle Insert
1.0 mm (B10)
1620 Old Apex Road
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