Proportional Directional Valve 4WRZ10W8-50-7X/6EG24N9EK4/D3V - Bosch Rexroth R900945218

A return line with filter and cooler builds up back pressure that the pilot stage should not see. The 4WRZ10W8-50-7X/6EG24N9EK4/D3V is therefore relieved externally through Y and controls 50 l/min nominal flow.

Benefits

• External pilot drain through Y, back pressure in the return does not reach the pilot stage.
• Internal pilot oil supply from port P, so no separate pilot pressure source is needed.
• 50 l/min nominal flow, up to 170 l/min at 315 bar maximum operating pressure.
• Spool symbol W8 in three switching positions with four ports.
• FKM seals, concealed auxiliary actuation, mass 8.22 kg.

Applications

The valve is used on controlled axes of power units with long return runs. The Y line has to be routed to the tank without pressure, and control runs through external electronics at 24 V DC. Subplate mounting follows ISO 4401-05-05-0-05.

Manufacturer

Bosch Rexroth, material number R900945218, product family 4WRZ(E). Permissible back pressures at the drain are named in data sheet RE 29115.