Pressure Relief Valve DBW 30 A2-5X/315Y6EG24N9K4/12=CSA - Bosch Rexroth R978031549

A pump circuit rated at 650 l/min needs pressure protection that holds the set value at full flow. The pilot-operated DBW 30 A2-5X relief valve works as a poppet valve across an adjustment range of 4 to 315 bar, unloading electrically to symbol A.

Benefits

• Adjustment range 4 to 315 bar, set at an internal hexagon under a protective cap.
• 650 l/min rated flow at a maximum operating pressure of 350 bar.
• Pilot-operated poppet design, tight in the closed position instead of leaking slowly.
• Symbol A across two ports in two switching positions, 24 VDC solenoid.
• 6.5 kg on connection diagram ISO 6264-10-17, NBR seals for HL hydraulic fluid.

Application

The valve belongs in the pressure line of power units, presses and clamping systems where system pressure has to be capped while the pump is unloaded between cycles. Subplate mounting to ISO 6264-10-17 keeps the piping untouched when a unit is exchanged. Rated flow of 650 l/min marks the upper limit of the circuit it can guard.

Manufacturer

Bosch Rexroth, material number R978031549, product family DB.10-30. Characteristic curves, mounting dimensions and limits are documented in data sheet RE 25802 together with RE 25802-B.