Pressure Relief Valve DBW10B2-5X/200S6EG24N9DK25LR12/12 - Bosch Rexroth R978933719

A relief valve without unloading holds system pressure even while the machine waits, heating up oil for nothing. Pilot-operated valve DBW10B2-5X/200S6EG24N9DK25LR12/12 limits to a setting between 4 and 200 bar and switches the circuit pressureless through solenoid actuation, at up to 250 l/min.

Benefits

• Adjustment range 4 to 200 bar through an internal hexagon with protective cap.
• Electrical unloading via 24 V DC solenoid actuation, two switching positions.
• 250 l/min at a maximum of 350 bar operating pressure, size 10.
• Poppet seat design, pilot-operated, subplate mounting to ISO 6264-06-09.
• 4.3 kg, NBR seals, connector 5-pole according to ANSI/B93.55M-1981.

Application

The valve protects power units of presses, clamping rigs and test benches against overpressure and provides unloaded circulation between cycles. Because unloading is switched electrically, pump pressure can be taken away from the control system. The protective cap over the internal hexagon guards the setting against unintended adjustment.

Manufacturer

Bosch Rexroth lists this pilot-operated pressure relief valve DBW10B2-5X/200S6EG24N9DK25LR12/12 under material number R978933719. Data sheets RE 25802 and RE 25802-B show characteristic curves, installation dimensions and connection diagram. Letter B in the type code marks this spool version, and the 200 suffix marks the adjustment range up to 200 bar.