Proportional Directional Valve 4WRZ25W6-325-7X/6EG24K4/D3M - Bosch Rexroth R900706794

On axes whose working pressure jumps between rapid traverse and press force, the pilot stage should not notice any of it. The 4WRZ25W6-325-7X/6EG24K4/D3M therefore takes pilot oil from an external circuit and returns it there, with 325 l/min nominal flow in the main channel.

Benefits

• Pilot oil fed in and drained externally, pilot pressure and relief are decoupled from the main flow.
• 325 l/min nominal flow, up to 870 l/min peak flow at 350 bar maximum operating pressure.
• Spool symbol W6, 20.4 kg weight in size 25 on the ISO 4401-08-08-0-05 pattern.
• Three switching positions across four ports with NBR seals for HL hydraulic fluid.
• 24 VDC through a 7-pole (6 + PE) plug to EN 175201-804 in combination with external electronics.

Applications

Plants with a central pilot pressure circuit, such as large presses and forging lines, are the usual environment. The external supply makes it possible to feed several pilot-operated valves from one source and to protect the pilot pressure separately. When replacing an existing valve, check the pilot oil variant, otherwise the subplate will not match.

Manufacturer

Bosch Rexroth, material number R900706794. Characteristic curves, pilot oil demand and installation dimensions are given in data sheet RE 29115.