Pressure Relief Valve DBW20B2-5X/340Y6EG24N9K4E - Bosch Rexroth R901277618

High pressure circuits with a large pump raise two demands at once, a setting range close to the body limit and enough flow capacity while discharging. This version covers 4 to 340 bar and is rated for 450 l/min. The cut-off pressure is fixed on the internal hexagon under the protective cap, and the mass is 5.36 kg.

Benefits

• Setting range 4 to 340 bar at a maximum operating pressure of 350 bar
• 450 l/min flow rating, matched to pumps with high delivery
• Pilot-operated poppet valve in size 25 with spool symbol B
• Internal hexagon with protective cap, subplate mounting to ISO 6264-08-13
• Solenoid actuation at 24 VDC, 3-pole connector (2 + PE) to EN 175301-803
• 5.36 kg mass, NBR seals for HL hydraulic fluid

Application

The valve serves forging and forming presses as well as test rigs whose working pressure exceeds 300 bar. Since only a few bar of margin remain to the body limit, the cut-off value should be documented precisely and checked at regular intervals. The solenoid switches the circuit from the machine control.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20B2-5X/340Y6EG24N9K4E under material number R901277618. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. At settings close to 340 bar, verify the pressure rating of every connected component beforehand.