Pressure Relief Valve DBW20B2-5X/115Y6EG24N9K4E - Bosch Rexroth R901044408

Some circuits are limited to a good 100 bar yet still move large quantities of oil, for instance prefill and lifting circuits. This version therefore combines a setting range of 4 to 115 bar with flow up to 450 l/min. Adjustment is made on the internal hexagon under the protective cap, and the mass is 5.35 kg.

Benefits

• Setting range 4 to 115 bar for circuits with a limited pressure rating
• 450 l/min flow rating despite the low setting stage
• 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

Application

The valve serves lifting tables, prefill circuits of large presses and machines with thin walled piping that only takes a good 100 bar. The large flow rating keeps pressure close to the value that was set while the valve discharges. The solenoid switches the circuit from the control system.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20B2-5X/115Y6EG24N9K4E under material number R901044408. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. With low settings and high flow, back pressure in the return line deserves particular attention.