Pressure Relief Valve DBW20B2-5X/225Y6EG24N9K4E - Bosch Rexroth R901283235

When a high delivery pump works in a circuit at around 220 bar, the relief valve has to take the full flow without letting pressure run away. This version is rated for 450 l/min and covers 4 to 225 bar. The subplate interface follows ISO 6264-08-13 and the mass is 5.4 kg.

Benefits

• 450 l/min flow rating for power units with high delivery
• Setting range 4 to 225 bar at a maximum operating pressure of 350 bar
• 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
• 5.4 kg mass, NBR seals for HL hydraulic fluid

Application

The target is power units on forming machines and large clamping systems that work around 220 bar and move a lot of oil. The extra flow headroom keeps pressure close to the set point while the valve discharges. The solenoid switches the circuit independently of the pressure stage that was set.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20B2-5X/225Y6EG24N9K4E under material number R901283235. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. At 450 l/min the return line should be generously sized and the filter rated accordingly.