Pressure Relief Valve DBW30A2N5X/315Y6EG24N9K4/12=CSA - Bosch Rexroth R901009039

A pump circuit carrying 650 l/min can only be protected by a valve that takes the whole flow to tank in the limiting case. The pilot-operated pressure relief valve DBW30A2N5X/315Y6EG24N9K4/12=CSA in size 32 limits pressure adjustably from 4 to 315 bar.

Benefits

• Up to 650 l/min relief capacity at a maximum operating pressure of 350 bar.
• Adjustment range 4 to 315 bar through an internal hexagon with protective cap, secured against unintended changes.
• Poppet seat design in the pilot stage, closing tightly without a permanent leakage flow.
• Electrical unloading at 24 VDC, two switching positions to symbol A.
• Port pattern ISO 6264-10-17, size 32 subplate mounting at a weight of 6 kg.

Applications

Large pump units on presses and test rigs need a relief valve that both sets the system pressure and lets the pump circulate unloaded on an electrical command. The internal hexagon under a protective cap keeps the setting fixed in rough service, so an operator cannot turn it by accident. An adjustment range of 4 to 315 bar covers both low pre-load pressures and the usual working band of industrial hydraulics.

Manufacturer

Bosch Rexroth, material number R901009039, product family DB.10-30. Pressure and flow characteristics together with the pilot stage data are given in the pressure relief valve data sheet (RE 25802), design and variants in RE 25802-B.