Pressure Relief Valve DBW 20 B2-5X/350S6EG24N9K4R12/12 - Bosch Rexroth R978020425

When an adjustment range stops below system pressure, capacity goes unused. The pilot-operated DBW 20 B2-5X/350S6EG24N9K4R12/12 in size 25 can be set up to 350 bar and so up to its own maximum operating pressure, at a flow of up to 500 l/min.

Benefits

• Pressure adjustment range 4 to 350 bar, matching its maximum operating pressure.
• Up to 500 l/min in size 25 to ISO 6264-08-13.
• Spool symbol B in two switching positions, 24 VDC solenoid actuation.
• Pilot-operated poppet valve with internal hexagon and protective cap.
• 5.3 kg, NBR seals for HL hydraulic fluid.

Application

It suits presses and clamping hydraulics working close to rated pressure for long periods. Because adjustment reaches 350 bar, no stronger spring is needed if system pressure is raised later.

Manufacturer

Bosch Rexroth lists this pilot-operated pressure relief valve DBW 20 B2-5X/350S6EG24N9K4R12/12 under material number R978020425. Data sheets RE 25802 and RE 25802-B show characteristic curves, installation dimensions and the connection diagram. Figure 350 in a type code marks a spring covering a range up to 350 bar.