E 22.0 N Pressure or vacuum relief valve


  • As end-of-line armature for venting apertures on tank installations.
  • As venting device for fixed roof tanks.
  • Used to prevent inadmissible pressure or vacuum and to minimize unwelcome gas losses or inadmissible emissions respectively.
  • The housing is mounted perpendicularly on a tank roof.
  • The product vapours can be discharged through a collective line into the atmosphere connected to the line flange.