Bosch Rexroth | H-4WMM22G7XF
H-4WMM22G7X/F
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The H-4WMM22G7X/F valve belongs to the WM Directional Spool Valves series produced by Bosch Rexroth for hydraulic automation circuits that need manual flow direction control. It is actuated by a hand lever, and the lever must travel 24.5° to either side of center to shift the spool. The design offers three spool positions designated by symbol G to select neutral or two working states. A detent keeps the chosen position engaged until the operator moves the lever again. Four main ports handle pressure, work, and tank lines, and the body follows size 25 dimensions. Manifold mounting is assisted by compatibility with DIN 24340 Form A25 and ISO 4401-08-08-0-05 port patterns.
The valve carries a maximum flow rating of 450 l/min, while the permissible flow at 350 bar with the detent engaged is 230 l/min. Working ports a, b, and p can be pressurized to 350 bar, and the tank port t is limited to 250 bar. Installation calls for a mounting bolt torque of 130 Nm to secure the housing without distortion. NBR seals contain the hydraulic fluid and withstand common mineral oils used in industrial systems. The assembled unit weighs 12.2 kg, which should be considered when selecting support brackets and handling equipment.
Technical Specifications
Actuating Angle From Center
2 × 24.5°
Actuation
Hand Lever
Detent
Yes
Main Ports
4
Max Flow
450 l/min
Max Pressure (a/b/p)
350 bar
Max Pressure (t)
250 bar
Mounting Bolt Torque
130 Nm
Permissible Flow @ 350 Bar (g, Detent)
230 l/min
Porting Pattern (din)
DIN 24340 Form A25
Porting Pattern (iso)
ISO 4401-08-08-0-05
Seal Material
NBR
Size
25
Spool Positions
3
Spool Symbol
G
Weight
12.2 kg
1620 Old Apex Road
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