Water Foam Sprinkler

Product Description chinacoal05Each closed-head fire 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 fire sprinkler reaches the design activation temperature of the individual fire