Explosion vent

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An explosion vent is a device used for protection against excessive internal, explosion-incurred pressures, by means of pressure relief. An Explosion vent will relieve pressure from the instant its opening (or activation) pressure p<stat> has been exceeded.

More than one vent can be used simultaneously. Explosion vents are available in the versions self-destructive, non-self-re-closing and re-usable, self-re-closing.

The evaluation of an explosion vent's efficiency and its range of application are subject to rules. See NFPA 68, VDI 3673, EN 14797.

[edit] Explosion Vent Construction

Explosion vent construction must balance the contradictory requirements "low inertia" and "high strength". Inertia negatively affects an explosion vent's efficiency. High strength is required to endure the considerable forces that move the vent's venting element in order to open the venting orifice. Unintended disintegration must not cause disintegrating parts turning into a missile.