Pressure Relief Valve DBW20B2-5X/230-6EG24N9K4E - Bosch Rexroth R901170855

Accumulator charging circuits and lifting gear often sit just above 200 bar, because the piston area would otherwise grow too large. A setting range of 4 to 230 bar meets that band while leaving ample margin to the permissible 350 bar. The pilot-operated poppet valve takes up to 400 l/min across the ISO 6264-08-13 subplate interface.

Benefits

• Setting range 4 to 230 bar for circuits above the 200 bar mark
• Pilot-operated poppet valve in size 25 rated for up to 400 l/min
• Internal hexagon with protective cap, spool symbol B, two ports
• Subplate mounting to ISO 6264-08-13, maximum operating pressure 350 bar
• Solenoid actuation at 24 VDC, 3-pole connector (2 + PE) to EN 175301-803
• 5.34 kg mass, NBR seals for HL hydraulic fluid

Application

The stage suits power units with an accumulator, lifting gear and feed drives working around 220 bar. Poppet seat design limits leakage, so the accumulator holds pressure longer between charging cycles. The solenoid switches the circuit without changing the setting.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20B2-5X/230-6EG24N9K4E under material number R901170855. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. In accumulator circuits, choose the cut-off pressure below the permissible accumulator pressure.