Each closed-head sprinkler is held closed by either a heat-sensitive glass bulb (see below) or a two-part metal link held together with fusible alloy such as Wood's metal and other alloys with similar compositions.The glass bulb or link applies pressure to a pipe cap which acts as a plug which prevents water from flowing until the ambient temperature around the sprinkler reaches the design activation temperature of the individual sprinkler. Because each sprinkler activates independently when the predetermined heat level is reached, the number of sprinklers that operate is limited to only those near the fire, thereby maximizing the available water pressure over the point of fire origin.
Details:
Place of Origin: Fujian, China (Mainland), Fujian, China (Mainland).
Brand Name: Duntop.
Model Number: ESFR.
Model: Early Suppression Fast Response.
Key word: Early Suppression Fast Response.
Functions: Fire fighting.
Cylinder Material: 5.
Keyword: Fire fighting sprinkler, safety and protection product.
Color: Chrome, white.
Certificate: CCC.
Usage: Standard Fire Extinguisher.
Glass Bulb Color: Red Glass Bulb.
