Pressure Relief Valve DBW30B2N5X/90Y6EG24N9K4E - Bosch Rexroth R901143927

Accumulator bladders, coolers and prefill lines set a hard ceiling below 100 bar. This pilot-operated pressure relief valve holds pressure across a range of 4 to 90 bar while accepting up to 700 l/min.

Benefits

• Setting range of 4 to 90 bar, so the whole scale sits inside the protection band of pressure-sensitive components.
• 700 l/min permitted flow, so even large prefill volumes drain away.
• Internal hexagon under a protective cap keeps the limit secure once set.
• Pilot-operated seat valve that closes tightly in the rest position.
• Maximum operating pressure of 350 bar, so the body is rated far above the scale.
• 6.49 kg weight with solenoid actuation at 24 VDC.

Technical data

Application

Suited as a protection stage for accumulator circuits, cooling and filter lines and the prefill circuits of large presses. The low ceiling protects components that run with the main circuit but cannot take its pressure. During pauses the solenoid unloads the circuit, and the NBR seals suit HL hydraulic fluid.

Manufacturer

Bosch Rexroth, material number R901143927. Installation dimensions and characteristic curves are given in the data sheet Pressure relief valve (RE 25802) and the supplement Pressure relief valve (RE 25802-B).