Pressure Relief Valve DBW20B1-5X/210Y6EG24N9K4E - Bosch Rexroth R901406281

When the pump grows, the relief valve has to discharge more oil without letting the set pressure run away. This version is rated for up to 450 l/min and keeps the rotary knob for setting 4 to 210 bar. The subplate interface follows ISO 6264-08-13 and the mass is 5.48 kg.

Benefits

• 450 l/min flow rating, matched to larger pumps in size 25
• Rotary knob for a setting range of 4 to 210 bar, no tool required
• Pilot-operated poppet valve, maximum operating pressure 350 bar
• Subplate mounting to the ISO 6264-08-13 interface
• Solenoid actuation at 24 VDC, 3-pole connector (2 + PE) to EN 175301-803
• 5.48 kg mass, NBR seals for HL hydraulic fluid

Application

The version suits power units with high delivery, for instance on injection moulding machines and large clamping systems working at about 200 bar. The extra flow headroom stops the pressure from rising above the set point while the valve is discharging. Setting is done by hand at the knob, switching through the solenoid.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20B1-5X/210Y6EG24N9K4E under material number R901406281. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. Check that your return line can take 450 l/min without building back pressure.