• DN15 Brass Upright Fire Sprinkler ZST Types Head for Fire Fighting Sprinkler System, Fire Sprinkler, Sprinkler Head Call for Price

    68 Degree Glass Bulb Fire Sprinkler Heads

    Fire sprinkler is an important part of wet-type auto spraying system. It is usually installed inside the building and structures with light fire danger, medium fire danger and heavy fire danger, such as workshop, warehouse, hotel, shop, recreational place, hospital, cinema, office building and garage.
    The sprinkler is composed of sprinkler frame, sealant and glass bulb. It is to be installed in the protective district via ductwork, acting as a fire detector and auto sprayer. In case of fire inside the protective district, the atmosphere temperature rises up and the liquid inside the glass bulb expands after being heated and explodes after reaching the operating temperature of the glass ball. The sealant drops and the sprinkler sprays to the protective district for fire extinguishments subject to the preset shape of spraying.
    Technical parameters:

    Type Upright
    Material Brass
    Surface finish Natural brass
    Thread diameter 1/2″ NPT/BSPT (DN15)
    Flow characteristic coefficient 80L/min(K=5.6)
    Glass bulb diameter 5mm(Standard Response) or 3mm(Quick Response)
    Certificates ISO,CCC,UL
    Max working pressure 1.2Mpa (175Psig/12 Bar)
    Factory Hydrostatic Test 100%, 3.0Mpa

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