CCNR Terminology
Last updated: 20.07.2016
 | high velocity vent valve |
 | soupape de dégagement à grande vitesse |
Source: ADN
| Definition: | |
|---|---|
| ADN | |
  | means a pressure-reducing valve with a nominal ejection speed greater than the speed of propagation of a flame of a flammable mixture, thus preventing the passage of a flame front. This type of installation shall be tested in accordance with European standard EN 12 874 (1999); |