Proportional Directional Valve 4WRZ10E1-85-7X/6EG24K4/D3M - Bosch Rexroth R901278973

For control quality to stay even across the whole cycle, the pilot stage should have a supply of its own. The 4WRZ10E1-85-7X/6EG24K4/D3M works exactly that way, with external supply and external return at 85 l/min nominal flow.

Benefits

• External pilot oil supply and external return, independent of working pressure
• 85 l/min nominal flow, flow range up to 170 l/min
• Spool symbol E1 with 3 switching positions and 4 ports
• 315 bar maximum operating pressure in the ISO 4401-05-05-0-05 interface
• Control at 24 VDC through external electronics, 7-pole (6 + PE) connector to EN 175201-804
• 8.2 kg, integrated pressure reducing valve, NBR seals

Applications

The typical application is a test rig or a machine whose system pressure is deliberately varied during the cycle. A separate pilot supply keeps the pilot stage at steady pressure throughout. HL hydraulic fluid is covered by the NBR seals.

Manufacturer

The Bosch Rexroth material number is R901278973. Control curves and the requirements on the pilot supply are given in data sheet RE 29115, with further detail in RE 07600-B.