Pressure Relief Valve DBW20B2-5X/180-6EG24N9K4VE - Bosch Rexroth R901245424

A circuit that holds clamping pressure for minutes or hours keeps losing oil through a leaking pressure valve and restarts the pump again and again. The poppet seat design of this valve limits exactly that leakage. The setting range runs from 4 to 180 bar with flow up to 400 l/min across the ISO 6264-08-13 subplate interface.

Benefits

• Poppet seat design limits leakage while a pressure is being held
• Setting range 4 to 180 bar at a maximum operating pressure of 350 bar
• Flow up to 400 l/min in size 25
• Internal hexagon with protective cap, spool symbol B, two ports
• Solenoid actuation at 24 VDC, 3-pole connector (2 + PE) to EN 175301-803
• 5.59 kg mass, NBR seals for HL hydraulic fluid

Application

The version makes sense on clamping fixtures, tilting equipment and holding circuits whose pressure stands still between strokes. Less make-up flow means less pump running time and lower oil temperature. The solenoid switches the circuit without touching the pressure setting.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20B2-5X/180-6EG24N9K4VE under material number R901245424. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. For holding circuits with long idle periods, add a pressure gauge so the real behaviour can be checked.