Pressure Relief Valve DBW20B2-5X/280-6EG24N9K4E - Bosch Rexroth R901364029

A cut-off pressure of 280 bar calls for a spring that still leaves reserve to the permissible 350 bar. The setting range of 4 to 280 bar sits exactly in that band. The pilot-operated poppet valve in size 25 takes up to 400 l/min, mounts on a subplate to ISO 6264-08-13 and weighs 5.42 kg.

Benefits

• Setting range 4 to 280 bar with reserve to the 350 bar operating pressure
• Flow up to 400 l/min across the ISO 6264-08-13 subplate interface
• Pilot-operated design gives a flat curve across the flow range
• Internal hexagon with protective cap, spool symbol B, two ports
• Solenoid actuation at 24 VDC, 3-pole connector (2 + PE) to EN 175301-803
• 5.42 kg mass, NBR seals for HL hydraulic fluid

Application

The stage fits presses, punching machines and clamping systems working between 250 and 280 bar. In that band enough margin remains to the body limit for pressure peaks from fast switching to be absorbed. The solenoid switches the circuit without shifting the pressure setting.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20B2-5X/280-6EG24N9K4E under material number R901364029. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. After a valve change, check the cut-off pressure again on the gauge.