Pressure Relief Valve DBW 10 B2-5X/100-6EG24N9DK24LV/12 - Bosch Rexroth R978908386

Holding hydraulic pressure at a set value and taking the pump off load between working strokes normally calls for two devices. The pilot-operated DBW 10 pressure relief valve in size 10 relieves up to 250 l/min and unloads the circuit through its 24 VDC solenoid.

Advantages

• Setting range 4 to 100 bar through an internal hexagon, the protective cap keeps the set value from being altered.
• Maximum operating pressure 350 bar, so the pressure rating of the body stays above the whole setting range.
• Up to 250 l/min relieved flow through a subplate mounting to ISO 6264-06-09.
• Pilot-operated poppet design that holds the set pressure down to small flow rates.
• Electrical unloading at 24 VDC, wired through a connector, 4-pole, M12 x 1, coding A.
• FKM seals for HL hydraulic fluid, valve weight 4.3 kg.

Application

The valve protects pump circuits, presses and clamping systems against excess pressure and keeps the pressure at the value set on the pilot stage. Its second switching position takes the circuit off load during pauses or while the pump runs up, which removes the need for a separate unloading valve. Two ports and the subplate mounting to ISO 6264-06-09 suit an existing mounting plate or a manifold block. FKM seals match HL hydraulic fluid where temperature demands are raised.

Manufacturer

Made by Bosch Rexroth under material number R978908386. Characteristic curves, leakage figures and installation dimensions are given in data sheets RE 25802 and RE 25802-B.