preaction sprinkler system
preaction sprinkler system
A
dry-pipe sprinkler system which is activated by a smoke- or heat-sensing device, thereby opening a control valve and admitting water.
preaction sprinkler system
A fire
sprinkler system using automatic
sprinklers (heads) attached to a piping system; is controlled by a supplemental fire detection system, that is installed in the same area as the sprinklers; actuation of the detection system opens a valve which permits
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive
With a
preaction sprinkler system, water (held back by a preaction valve) is prevented from actually filling the pipes until an event occurs, such as the activation of a heat or smoke detector.
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