Pressure Relief Valve DBW20B2-5X/80Y6EG24N9K4E - Bosch Rexroth R901257300

Large flows occur not only in high pressure circuits but also in circulation, flushing and cooling loops that run at a few dozen bar. For that case this version covers a setting range of 4 to 80 bar while taking up to 450 l/min. The subplate interface follows ISO 6264-08-13 and the mass is 5.59 kg.

Benefits

• Setting range 4 to 80 bar with fine resolution in the low pressure band
• 450 l/min flow rating despite the low pressure stage
• Body still released for a maximum operating pressure of 350 bar
• Pilot-operated poppet valve in size 25 with spool symbol B
• Solenoid actuation at 24 VDC, 3-pole connector (2 + PE) to EN 175301-803
• 5.59 kg mass, NBR seals for HL hydraulic fluid

Application

The version suits flushing and cooling loops, prefill circuits of large cylinders and machines that move a lot of oil at low pressure. Because the body is released for 350 bar, pressure peaks from other parts of the circuit do not endanger the valve. The solenoid switches the circuit independently of the pressure setting.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20B2-5X/80Y6EG24N9K4E under material number R901257300. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. Size the return line for 450 l/min so that back pressure does not falsify the low setting.