Pressure Relief Valve series ASDF and AGDF

Pressure Relief Valve series ASDF and AGDF

Pressure [bar]


Flow rate [l/min]


Series AS(G) pressure relief valves regulate the operating pressure and flow rate in a hydraulic system and protect it. Regardless of the maximum operating pressure that has been set, the valve can be switched to unloaded bypass via an external pilot port. The pressure-relief valves are intended for direct mounting on hydraulic pumps with SAE flange ports. The main components of the valves are a body and a pressure-relief cartridge. The pressure-relief valve is a cartridge unit with a seated pilot stage and a spool-type main stage.

  • Short response times
  • Trouble-free operation
  • With improved pressure-adjustment resolution
  • High levels of functionality and stability
  • Low pressure increase and minimal pressure peaks
  • Cost-saving, thanks to direct mounting on hydraulic pumps
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