TERMIUM Plus®

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quick-opening device [2 records]

Record 1 2017-05-31

English

Subject field(s)
  • Fixed Rescue Facilities (fire)
DEF

Device attached to the dry valve of an automatic sprinkler system to speed up the tripping of the dry pipe valve and to allow water to quickly be discharged from the sprinkler heads that have opened.

CONT

Quick-opening devices can be installed to speed delivery of water, however, it should be noted that dry pipe accelerator or exhauster malfunctions have been cited as common automatic sprinkler failure modes.

OBS

accelerator: term officially approved by the Lexicon Project Committee (New Brunswick).

Key term(s)
  • quick-opening device

French

Domaine(s)
  • Installations fixes de secours (incendies)
DEF

Dispositif qui assure l'arrivée rapide de l'eau dans la tuyauterie remplie d'air (dans les lieux où il y a risque de gel), après l'ouverture d'une tête d'extinction automatique.

CONT

Pour les postes alternatifs, air et préaction, le nombre de sprinkleurs est de 250 avec accélérateur ou exhausteur, et de 125 sans. Pour les installations de groupe 3, plus de 50 mètres, un indicateur de passage doit être placé à chaque niveau.

OBS

accélérateur : terme uniformisé par le Comité du projet de lexiques (Nouveau-Brunswick).

Spanish

Save record 1

Record 2 2017-05-31

English

Subject field(s)
  • Closing Devices and Nozzles (Mechanical Components)
  • Taps and Plumbing Accessories
  • Fixed Rescue Facilities (fire)
CONT

One characteristic of a dry-pipe system is a delay in time between the opening of a sprinkler and the discharge of water, which may allow the fire to spread and more sprinklers to open. The delay is due to the time required to exhaust the air from the sprinkler piping. The difficulty may be partly overcome by installation of quick-opening devices which either increase the rate of discharge of air from the piping or accelerate opening of the dry valve when one or more sprinklers operate, depending upon the type of device used.

OBS

quick-opening device: term officially approved by the Lexicon Project Committee (New Brunswick).

French

Domaine(s)
  • Obturateurs et buses (Composants mécaniques)
  • Robinetterie et accessoires
  • Installations fixes de secours (incendies)
OBS

Accélérateur et exhausteur. Ces matériels ne sont utilisés que dans les postes à air et alternatifs. Ils ont pour objet d'accélérer l'évacuation de l'air, donc de diminuer le temps d'arrivée de l'eau aux sprinkleurs qui ont déclenché.

OBS

dispositif d'ouverture rapide : terme uniformisé par le Comité du projet de lexiques (Nouveau-Brunswick).

Spanish

Save record 2

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