Pressure Relief Valve DBW 10 B2-5X/200-6EG24N9DK24LV/12 - Bosch Rexroth R978905608

A pressure relief valve has to hold its setting even when the flow jumps. The pilot-operated DBW 10 B2-5X/200-6EG24N9DK24LV/12 uses a poppet design for that, is adjusted at the internal hexagon between 4 and 200 bar and copes with up to 250 l/min.

Advantages

• Adjustment range 4 to 200 bar at the internal hexagon, a protective cap covers the adjustment.
• Poppet design instead of a spool, the valve shuts off tightly in the closed position.
• Pilot operation for up to 250 l/min, which keeps the pressure close to the setting across a wide flow range.
• Two switching positions with solenoid actuation at 24 VDC, the valve is driven from the electrical control circuit.
• Maximum operating pressure 350 bar at size 10 with port pattern ISO 6264-06-09.
• FKM seals at a weight of 4.3 kg, rated for HL hydraulic fluid.

Application

The valve limits pressure in power units, on presses and in pump circuits whose system pressure is fixed at a value below 200 bar. The solenoid adds a second switching position that is commanded from the machine control. Mounting is done on a subplate to ISO 6264-06-09, so the valve fits into existing size 10 control blocks. The FKM seals suit circuits with raised temperature demands.

Manufacturer

Bosch Rexroth, material number R978905608, product family DB.10-30. Characteristic curves, setting ranges and installation dimensions are described in the data sheet Pressure relief valve (RE 25802), with the issue RE 25802-B as a supplement.