Pressure Relief Valve DBW20B2-5X/250Y6EG24N9K4E - Bosch Rexroth R901274442

A design pressure of 250 bar shows up in hydraulic diagrams particularly often, because pumps and cylinders are available for that figure. This version covers it with a setting range of 4 to 250 bar and is released for 450 l/min on top. The subplate interface follows ISO 6264-08-13 and the mass is 5.35 kg.

Benefits

• Setting range 4 to 250 bar for the widely used design pressure
• 450 l/min flow rating, also for pumps with high delivery
• 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
• 5.35 kg mass, NBR seals for HL hydraulic fluid

Technical data

Application

The valve goes into power units for presses, lifting gear and clamping systems rated at 250 bar. The extra flow headroom helps when several consumers return to tank at the same time. Solenoid actuation switches the circuit without altering the pressure that was set.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20B2-5X/250Y6EG24N9K4E under material number R901274442. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. Note the value you set at commissioning so it can be restored after a valve change.