Directional Spool Valve H-4WMMH16H7X/F6QMAG24 - Bosch Rexroth R900926571

On presses and hoists, release of the next step depends on the spool having reached the position asked for. The H-4WMMH16H7X/F6QMAG24 therefore carries spool position monitoring and passes up to 300 l/min at a maximum of 350 bar operating pressure.

Benefits

• Spool position monitoring, the controller receives feedback on the position reached.
• Up to 300 l/min at 350 bar maximum operating pressure in size 16.
• Symbol H with 3 switching positions across 4 ports.
• External pilot oil supply and external pilot oil return, keeping the pilot circuit separate from the working circuit.
• Pilot-operated with manual actuation at 9.01 kg.
• Subplate mounting to ISO 4401-07-07-0-05 with NBR seals for HL hydraulic fluid.

Applications

The valve is used where position feedback forms part of the sequence chain, for instance on presses, hoists and clamping units with interlinked steps. Symbol H connects the service ports to tank in mid position and leaves the cylinder standing without pressure. External pilot oil supply allows operation even when the working circuit temporarily lacks sufficient pilot pressure.

Manufacturer

Bosch Rexroth, material number R900926571. Characteristic curves, pilot oil demand and installation dimensions are given in data sheets RE 24851 and RE 24851-B on the 3/2, 4/2 and 4/3 directional valves.