Proportional Directional Valve 4WRZ25W8-325-7X/6EG24N9EK4/D3M - Bosch Rexroth R900975899

The 4WRZ25W8-325-7X/6EG24N9EK4/D3M meters a nominal flow of 325 l/min in size 25. Pilot oil is taken internally from the main channel and discharged through a line of its own, with 350 bar operating pressure permitted.

Benefits

• Nominal flow 325 l/min, maximum flow 870 l/min in size 25.
• Internal pilot oil supply, external return, useful where back pressure builds in the tank channel.
• Spool symbol W8, pilot-operated spool valve with 3 switching positions.
• Integrated pressure reducing valve keeps the pilot stage pressure constant.
• 20.44 kg, NBR seals, external electronics, 24 V DC supply.

Technical data

Applications

The valve is used on axes with high throughput, for instance on press cylinders and large feed drives. Taking the pilot oil internally saves a supply line as long as the main channel is permanently pressurised. The external return keeps the pilot stage free of back pressure.

Manufacturer

The manufacturer is Bosch Rexroth, material number R900975899, product family 4WRZ(E). Data sheet RE 29115 gives characteristic curves and connection variants, RE 07600-B places the series.