alarm valve

alarm valve

[ə′lärm ‚valv]
(engineering)
A device that sounds an alarm when water flows in an automatic sprinkler system.

wet-alarm valve

A valve that (a) permits the flow of water into a wet-pipe sprinkler system, (b) prevents the reverse flow of water, and (c) incorporates provisions for actuating an alarm under specified flow conditions.
References in periodicals archive ?
total quantity or scope: - 1 piece sprinkler pump, - 3 pieces dry alarm valve stations, - 1 piece compressor unit, - 300 pieces of dry sprinklers, - 1 300 m sprinkler pipe.
500 m, - make exhibitor connections 28 pcs, - install new sprinkler distributor 1 pc, - new alarm valve stations incl.
Measures phase 1 (half of the building east) sprinkler system: two new wet alarm valve stations (nav) ascent per nav with a mutual exit into the 8 levels (according to high-rise guideline) zone subdivision (per level): alarm via flow detector (zone check) in the single floors fire alarm panel for alerting the fw, monitoring the system and controlling zone check increased sprinkler protection all around the faade room protection and cavity protection in the floors wall hydrant system (wet) construction of approx.
control cabinet, sprinkler pump 45 kw with overfill, sprinkler tank 90 m on site, pressure maintenance system - 1 st., compressed air supply system - 2 st., wet alarm valve station - 2 st., dry alarm valve station - 3 st., fire service connection - 1 st., gate valve - 12 st., alarm and monitoring equipment.
four wet alarm valve stations are provided at the existing distributor in the sprinkler control center.
3 x alarm valve station dn 100, - interface center, - approx.
- shade sprinkler ceiling protection k80 100 pcs, - dry sprinkler 245 pcs, - sprinkler as cavity protection 70 pcs, - steel pipe 702 m, - leap in main and distribution 17 st., - sprinkler container 1 pc, - sprinkler pump 1 pc, - pressure holding unit 1 pc, - fire service supply 1 pc, - alarm valve station 2 pcs, - fault signaling and tripping unit 1 pc., - special attachment 1 100 kg.
amount of water 5 628.00 l / min effective volume: 506.52 m 3 amounts: 1 sprinkler pump with soft start 1 wall hydrant pump 11 wet alarm valve stations 2 dry alarm valve stations 38 zone checks 25,000 m sprinkler pipe dn 20 - dn 300 8 500 fittings dn 20 - dn 300 16 wall hydrants with foam mixing
Wet alarm valve stations dn 150 9 pcs zone checks dn 50 to dn 150 150 m pe-hd earth cable 595 m steel pipe / threaded pipe dn 25 to dn 150, Coupled 720 pieces glass barrel sprinkler 1 piece of fault reporting unit fire extinguisher dry with 3 removal points