IEP Technologies / Hoerbiger – Flameless Explosion Vent – Explosion Relief Valve EVN 2.0

Explosion Relief Valve EVN 2.0 – Flameless Explosion Vent – IEP Technologies / Hoerbiger Safety Solutions

The Hoerbiger EVN 2.0 is a revolutionary explosion relief valve and flameless explosion vent with a low-mass valve plate and low response pressure. This flameless vent reacts within fractions of a second in the event of an explosion. Following an explosion, it immediately seals again, lowering the risk of secondary explosions and costly replacement.

The Hoerbiger EVN 2.0 is certified according to EN 16009.

Type Geometric relief area [cm²] Dimensions Connection Approx weight
[kg]
a
[mm]
b
[mm]
c
[mm]
d
[mm]
e
[mm]
No.
of bolts
h
Thread
k
P.C.D.
[mm]
266EVN 2.0 499 457 252 409 114 134 6 M12  or 1/2″ 302 29
320EVN 2.0 732 510 305 462 121 142 6 M12  or 1/2″ 355 37
420EVN 2.0 1260 625 400 579 150 165 8 M16 or 5/8″ 465 65
480EVN 2.0 1665 690 460 644 168 201 8 M16 or 5/8″ 530 80
565EVN 2.0 2300 790 541 735 197 228 12 M16 or 5/8″ 615 115
645EVN 2.0 2990 955 617 899 202 233 12 M16 or 5/8″ 700 160
735EVN 2.0 3905 970 705 910 222 260 12 M16 or 5/8″ 795 200

The standard range features an opening pressure of 0.05 bar ± 20%
Standard range components are made of carbon steel, coated. Special materials are available on request.

Each valve is equipped with an opening detection as standard.

For specific efficiency values (%EF) mandatory for correct sizing of the necessary relief area please contact the manufacturer.

Special features of Hoerbiger explosion relief valves:

· No flame escape
· No air inrush thanks to quick reclosing
· Absolute tight after reclosing
· Operable in all mounting positions
· Easy to install
· Virtually maintenance-free