Pressure Relief Valve DBW 20 AG2-5X/200-6EG24N9K4/12=CSA - Bosch Rexroth R978028285

Only part of a cycle time actually runs under working pressure, for the rest the pump delivers against the relief valve. The DBW 20 AG2-5X/200-6EG24N9K4/12=CSA takes that pressure away through a built-on directional spool valve and limits the working stroke to 3.8 to 200 bar.

Benefits

• Solenoid unloading through a built-on directional spool valve, switched from the machine control on 24 VDC.
• Adjustment range 3.8 to 200 bar, pilot-operated pressure valve in poppet seat design.
• 500 l/min in size 25 at a permitted operating pressure of 350 bar.
• Threaded connection to ISO 6264-08-13, symbol A with two ports.
• 6.6 kg, internal hexagon with protective cap, connector 3-pole (2 + PE) to EN 175301-803.

Applications

The valve belongs in cycled power units on clamping fixtures, punching machines and assembly lines. Because unloading is switched electrically, power draw falls in every pause without extra piping. HL hydraulic fluid and NBR seals cover mineral oil operation.

Manufacturer

Bosch Rexroth, material number R978028285. The design of the unloading stage and the curves are in RE 25802 and RE 25802-B.