排烟防火阀 fire damper in smoke-venting system
排烟阀 smoke damper
It is installed on the supply and return air ducts of ventilation and air conditioning system. It is usually open and closed when the flue gas temperature in the duct reaches 70°C in case of fire. It can meet the requirements of smoke leakage and fireproof integrity within a certain period of time and play the role of smoke isolation and fire resistance valve.
Fire valve is generally composed of valve body, blade, actuator and temperature sensor.
Fire Exhaust fire valve in smoke- disconnects System
It is installed on the pipe of the mechanical smoke exhaust system and is normally open. In case of fire, it will be closed when the smoke temperature in the smoke exhaust pipe reaches 280°C. It can meet the requirements of smoke leakage and fire-resistance integrity within a certain period of time and play the role of smoke isolation and fire resistance valve.
Smoke exhaust fire valve is generally composed of body, blade, actuator and temperature sensor.
Exhaust valve Smoke Damper
It is installed at the end of each branch pipe of the mechanical smoke exhaust system (smoke intake). It is usually closed and meets the requirements of air leakage. In case of fire or smoke exhaust, it can be opened manually or electrically to play the role of smoke exhaust. A valve with a decorative or decorative finish is called a smoke vent.
Exhaust valve is generally composed of valve body, blade, actuator and other components.