High Quality Wet Alarm Check Valve for Fire
FightingIntroductionAlarm Check Valve is core element in wet
pipe fire sprinkler systems. It serves a dual purpose which
prevents a reverse flow of water (non-return), also provides for
the use of the water motor gong. Meanwhile, in the event of
variable pressure condition, false alarm is prevented with
provision of retard chamber at the external bypass.FeatureStandard:
ANSI/ BS/ GBConnection: Flanged as ANSI B16.1/ EN
1092-2Installation: VerticalTest: Factory hydro test 350 psi (2.4
MPa)Temperature: 4°C to 70°CW. pressure: 175/ 300 psi (1.21/ 2.07
MPa)Surface: FBE coating as AWWA C550Main PartsBodyDuctile
IronCoverDuctile ironDiscDuctile iron / brass +
EPDMStemSS304/galvanized pipeSeatBronze/Cast
ironAccessoriesStandard trim & accessories, Retard chamber,Alarm
pressure switch, Water motor gong, etc.Technical
parameters:ModelZSFZ80ZSFZ100ZSFZ125ZSFZ150ZSFZ200ZSFZ250Norminial
diameter(mm)80100125150200250Working pressure(Mpa)1.6MpaSealed
test(Mpa)3.2MpaStrength test(Mpa)6.4MpaFlow rate(L/min)15
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