Pressure Relief Valve DBW20BG2-5X/220Y6EG24N9K4E - Bosch Rexroth R901200687

A power unit that needs pressure only part of the time wastes a lot of power idling against the set pressure. Here a built-on directional spool valve handles solenoid unloading, while the poppet seat pressure stage protects the circuit between 3.8 and 220 bar. Threaded connection with three ports allows direct installation into the piping, and flow reaches 450 l/min.

Benefits

• Solenoid unloading through a built-on directional spool valve allows pressureless idle phases
• Setting range 3.8 to 220 bar, maximum operating pressure 350 bar
• Three ports and threaded connection, no subplate required
• Flow up to 450 l/min in size 25
• Pressure stage in poppet seat design with internal hexagon and protective cap
• 6.88 kg mass, 24 VDC through a 3-pole connector (2 + PE) to EN 175301-803

Application

The version is called for in power units with long waiting times between strokes, for instance on clamping stations, test rigs and special machines. Unloading noticeably cuts wasted power during pauses and keeps oil temperature down. The three ports allow supply, return and pilot oil to be routed separately.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20BG2-5X/220Y6EG24N9K4E under material number R901200687. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. Take the assignment of the three ports from the data sheet before you start piping.