When the temperature around the fire pipe is lower than 0 ℃(such as refrigerated warehouse, cold tunnel), the water in the pipe will freeze. If there is a fire, the automatic sprinkler system will be unable to put out the fire in time because of the lack of water supply, resulting in huge fire losses. Antifreezing measures are divided into antifreeze technology, heat tracing technology and dry system. Antifreeze technology is to replace the water in the fire pipe with antifreeze with lower freezing point, so as to achieve the purpose of antifr...
