3C smoke fire prevention valve is installed in the home central air -conditioning delivery, exhaust system or simple rooms, and on the duct.The key effect of the to smoke fire and fire prevention valve is to be connected to other rooms according to the pipeline after the fire is not allowed to be connected according to the pipe.
Smoking fire and fire prevention valves are set up in the pipelines of natural ventilation and air -conditioning units, and smoke and fire prevention valves are set up in the pipelines of the smoke -proof system to prevent high -temperature harmful smoke and dust transmission during fire accidents, resulting in the spread and expansion of fire accidents and intensified side effects.The natural ventilation and air -conditioning units of the following conditions should be set up to smoke fire and fire prevention valves:
1. Pipeline crossing the partition wall of the evacuation exit;
2. Pipelines through natural ventilation, air -conditioning system hosting rooms and key or high -fire house partition walls and concrete buildings;
3. The level section of the vertical air duct and the level of the level of the level of the level of the level of the layer
4. Pipelines cross the sides of the building deformation seam.
3C smoke fire prevention valve is installed on the smoke exhaust pipeline. The smoke -proof fire prevention valve is usually closed.It will not be damaged by the smoke. When the fire is too large, the flame will enter the smoke exhaust pipe according to the air exhaust system.Data signal fire fire exhaust wind agency is closed.
5. When a fire prevention valve occurs at 70 degrees, the gate valve is closed to disconnect the fire to avoid the spread of fire accidents along the air duct.
6. 280 degrees is a smoke and fire prevention valve.When a fire occurs, the gate valve is opened and the smoke in the room is discharged.When the fire in the room is large, the temperature reaches 280 degrees. If it is discharged again, it will be explosive (280 degrees smoke discharge wherever you get, and the fire will be burst).It is not as good as closing it, so the gate valve is closed at 280 degrees to disconnect the fire.