Bosch Rexroth | 4WEH22G7X6EG24N9DAB12V
4WEH22G7X/6EG24N9DA/B12V
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The 4WEH22G7X/6EG24N9DA/B12V directional spool valve belongs to the WEH Directional Spool Valves series manufactured by Bosch Rexroth for hydraulic automation circuits that require fast and reliable flow control. It is built in nominal size NG25, a dimension that allows high flow rates while maintaining manageable pressure drops. The porting pattern follows ISO 4401-08-08-0-05 so the valve can be installed on standardized manifold plates without drilling changes. Subplate mounting further shortens change-over time in maintenance cycles. A high-power 4WE6E pilot valve drives the main stage to shift the spool under load conditions. The solenoids operate on 24 V DC, letting the unit integrate with common machine control voltages. Electrical termination is through a DIN EN 175301-803 connector, providing a sealed plug-and-socket interface. When power is removed, a spring-centered return mechanism brings the spool back to its neutral position. A concealed manual override, identified by the N9 code, offers hand actuation for setup or fault recovery without exposing moving parts.
The pilot circuit requires at least 10.5 bar to initiate movement and tolerates up to 210 bar, giving a broad control range for different supply conditions. Main flow paths p, A, and B are rated for 280 bar, while port T withstands 250 bar and port Y in the drain circuit handles 210 bar, so the valve can be placed in high-pressure systems without additional pressure reducing devices. A throttle insert of 1.2 mm diameter, coded B12, dampens transient peaks and smooths spool movement. FKM seals are fitted to resist synthetic fluids and elevated temperatures encountered in industrial hydraulics. With two solenoids installed, the assembly weighs 11.9 kg, a mass that supports stable mounting yet remains manageable during service.
Technical Specifications
Coil Voltage
24 V DC
Electrical Connection
DIN EN 175301-803
Manual Override
Concealed (N9)
Max Pilot Pressure
210 bar
Max Pressure (p, A, B)
280 bar
Max Pressure (port T)
250 bar
Max Pressure (port Y, Dc)
210 bar
Min Pilot Pressure
10.5 bar
Mounting Type
Subplate Mounting
Nominal Size
NG25
Pilot Valve Type
4WE6E (High-Power)
Porting Pattern
ISO 4401-08-08-0-05
Seal Material
FKM
Spool Return
Spring-Centered
Throttle Insert
Ø 1.2 mm (B12)
Weight (two Solenoids)
11.9 kg
1620 Old Apex Road
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