Bosch Rexroth | H-4WMM16J7XF
H-4WMM16J7X/F
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The H-4WMM16J7X/F directional spool valve belongs to the WM Directional Spool Valves series manufactured by Bosch Rexroth for hydraulic automation circuits that require manual flow control between four working ports. It is operated by a hand lever that swings the spool through 26 degrees to either side of center, allowing discrete switching positions supported by an integral detent. The J-type spool establishes the intended flow paths while handling up to 300 L/min when the detent is engaged. This model supports system lines A, B, and P at pressures up to 350 bar, whereas the return line at port T may be pressurized to 250 bar. Four ports arranged according to ISO 4401-07-07-0-05 provide the hydraulic interface and accept mineral oil in HL or HLP classes. When actuated, the valve directs flow precisely within these limits, making it suited for equipment that must maintain performance under high-pressure service.
The valve installs on subplates following the DIN 24340 Form A16 pattern and is fastened with four M10 × 60 screws of strength class 10.9 tightened to 75 Nm. An NBR sealing set blocks external leakage at this interface, and the manufacturer allows any installation position as long as the cleanliness level of 20/18/15 per ISO 4406 is maintained in the fluid. The optional orientation simplifies integration across mobile or stationary machinery that shares the same mounting pattern. Assembly throughput is aided by the clear screw specification, which gives predictable clamp load, and by the compact footprint inherent to the A16 subplate size. Once fitted, the elastomer seals retain pressure cycling at the stated limits, while the cleanliness requirement helps prevent spool sticking and wear, ensuring consistent manual switching through the full lever stroke.
Technical Specifications
Actuating Angle From Center
2 x 26°
Actuation
Hand Lever
Detent
Yes
Fluid Cleanliness (iso 4406)
20/18/15
Hydraulic Fluid
Mineral Oil (HL, HLP)
Installation Position
Optional
Max Operating Pressure (a, B, P)
350 bar
Max Permissible Flow (spool J, Detent)
300 l/min
Max Pressure (t Port)
250 bar
Mounting Pattern
DIN 24340 Form A16
Mounting Screws
4x M10 x 60 (ISO 4762, 10.9)
Number Of Ports
4
Porting Pattern
ISO 4401-07-07-0-05
Screw Tightening Torque
75 Nm
Seal Material
NBR
Spool Symbol
J
1620 Old Apex Road
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