The smoke and fire prevention valve is a fire component. It will be opened for smoke during the fire. It has galvanized plates, carbon steel or stainless steel. Its anti -corrosion performance is relatively strong and can be used for a long time.With the decorative port and the decorative smoke exhaust valve is the smoke exhaust port.So what are the differences between smoke and smoke fire prevention valves?1. The installation location is different: the fire valve is installed on the pipeline of the ventilation and air -conditioning system. It is usually open. When the temperature of the flue gas in the channel reaches 70 ° C during the fire, it can meet the amount of smoke and refractory integrity within a certain period of time.Requires the valve that is across the smoke.Generally consisting of valve body, blades, execution agencies, and temperature sensors.The smoke and fire prevention valve is installed on the pipeline of the mechanical smoke exhaust system. It is usually open. When the smoke temperature in the smoke exhaust pipes reaches 280 ° C during the fire, it can meet the requirements of smoke leakage and fire resistance in a certain period of time., A valve that has a fire blocking fire.Generally consisting of valve body, blades, execution agencies, and temperature sensors.2. Different protective objects: The firewood valve protects the people in the room without fire. The smoke and fire prevention valve protects the people in the fire room.The fire valve is often opened on the pipeline. It is often opened for a long time. It is automatically closed to open the smoke exhaust fire. It will automatically open the smoke in the constant closed house before it will automatically open.3. Tobacco discharge is a smoke -proof system in the fire system, which is generally linked to the fire alarm host.The smoke and fire prevention valve is usually opened, and the state is also turned on during the fire. However, when the temperature of the flue gas reaches 280 ° C, the smoke discharge fire prevention valve is automatically closed, and the linkage has stopped running.