Pressure relief cartridge direct operated BA_PM22

Pressure relief, backpressure, pressure sequence, accumulator unloading valves M22x1,5

Direct operated poppet type pressure relief valve as screw-in ­cartridge for cavity according to ISO 7789. The valve is closed in the neutral position. If the pressure in P (1) exceeds the adjusted value of the valve, the excessive pressure is drained to T (2). ­Changing back pressure at T (2) influences the adjusted value. ­Hardened precision parts ensure virtually leakage-free closing. The hydraulically damped poppet spool provides excellent stability over the entire flow range. ​ ​

Switching valves Pressure relief cartridge direct operated BA_PM22

Pressure relief cartridge​

  • direct operated
  • pmax = 400 bar
  • pN max = 350 bar
  • Qmax = 25 l/min


These valves are used for limiting the operating pressure in the hydraulic system. The screw-in cartridge is perfectly suitable for installation in control blocks and is installed in sandwich- (vertical stacked systems) and in flange plates (corresponding data sheets in this register). For machining the cartridge cavity in steel and aluminum blocks, cavity tools are available (hire or purchase). Please refer to the data sheets in register 2.13. Attention: Not to be used in applications with periodically changing flow direction.