Pressure Relief Valve DBW20B2-5X/330-6EG24N9K4E - Bosch Rexroth R901445207

The higher the working pressure, the more precisely the cut-off point has to sit, because the margin to the 350 bar body limit narrows. A setting range of 4 to 330 bar allows that fine work, and the cap over the internal hexagon holds the value afterwards. Up to 400 l/min discharge across the ISO 6264-08-13 subplate interface, and the valve weighs 5.34 kg.

Benefits

• Setting range 4 to 330 bar at a maximum operating pressure of 350 bar
• Internal hexagon under a protective cap, no accidental adjustment in service
• Flow up to 400 l/min across the ISO 6264-08-13 subplate interface
• 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
• 5.34 kg mass, NBR seals for HL hydraulic fluid

Application

The field of use covers presses, forging equipment and clamping systems running at around 300 bar. Because the valve is pilot-operated, the pressure curve stays flat over the whole flow range and the value that was set holds even at full pump output. The solenoid switches the circuit from the machine control.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20B2-5X/330-6EG24N9K4E under material number R901445207. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. Compare the curve in the data sheet with the real flow of your pump before you fix the cut-off pressure.