E 22.1 N Deflagration proof pressure and vacuum relief valve


  • As end-of-line armature for venting apertures on tank installations, deflagration and endurance burning proof.
  • Tested and approved against atmospheric deflagrations for all materials of the explosion group IIB3 with a maximum experimental safe gap (MESG) ≥ 0.65 mm and an maximum operating temperature of 60 °C.
  • Used mainly as venting and breather device for fixed roof tanks.
  • Used to prevent inadmissible pressure and vacuum and to minimize unwelcome gas losses or inadmissible emissions respectively.
  • The housing is mounted perpendicularly on a tank roof.
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