Pressure Relief Valve DBW30B2N5X/290Y6EG24N9K4E - Bosch Rexroth R901274655

When a pump group discharges completely across the relief valve during a fault, the permitted flow of that valve decides the outcome. This pilot-operated valve accepts up to 700 l/min and limits pressure across a range of 4 to 290 bar.

Benefits

• 700 l/min maximum flow, sized for circuits with several pumps or accumulator discharge.
• Setting range of 4 to 290 bar through an internal hexagon, with the protective cap holding the value.
• Maximum operating pressure of 350 bar, so the setting range ends below the body limit.
• Seat valve design closes tightly at rest and holds pressure without seepage.
• Electrical unloading at 24 VDC across two switching positions.
• 6.48 kg weight with connection diagram ISO 6264-10-17.

Application

Meant for central hydraulic supplies, accumulator stations and large presses where the full pump flow briefly passes across the relief stage. The fixed setting under the protective cap prevents unauthorised changes. The solenoid lets the system run pressureless during pauses.

Manufacturer

Bosch Rexroth, material number R901274655. Flow and pressure drop curves along with installation dimensions are given in the data sheet Pressure relief valve (RE 25802) and the supplement Pressure relief valve (RE 25802-B).