What is dry fire extinguishing system?
Donglie advantage is not afraid of the pipeline, because there is no water. The disadvantage is that there is a certain delay in extinguishing the fire because it is necessary to clean up the gas before it is filled with water.
When the fire, the pipe network of automatic exhaust valve action begins to exhaust, the pipe network exhaust clean, the alarm valve to the pipe network filled with water, and then sprinkler fire. The system is suitable for use where there is no leakage of water at ordinary times, or there is no place for thermal insulation of pipes.
What you should say is the sprinkler system, so the spray dry fire extinguishing system is the pipe. There is no water at all. It is full of pressurized gas or low pressure air.
