70 ℃ fire control valve apply to have the ventilation and air conditioning system, fire safety requirements, when disaster occurs, the temperature of fuse fuse fusible ring 70 degrees. The valve is closed, exhaust system for the operation of fire dampers fuse at 280 degrees. The valve is closed, exhaust system for the operation of fire dampers fuse at 280 degrees. Valve closed, cutting off the fire and smoke spread along the duct channel, the valve blade can be adjusted in the range of 0-90 degrees. Function (1) temperature of 70 degrees fuse action, the valve closes. (2) manually turned on or reset. (3) to manually change the opening angle of the blades. (4) According to the system requirements, increasing numbers of telecommunications equipment operation and fire interlock system or other systems. FYH-SFVD (ordinary) fire smoke exhaust valve YH-SFD with damper Features: 70 ℃ fuse action, automatically shut down. Consumers control center DC24V power input, the valve automatically closes. Manually shut down. Output off signal, interlock fan stops. Manual reset opening. Manually adjust the air flow. Smoke with fire dampers usually always open, 280 ℃ melt sensor operation is closed. Dampers (70 ℃, 280 ℃) otherwise: Fire and smoke dampers regulating valve plate discharges leafy exhaust port outlet pressure delivery outlet fire leafy outlet pressure delivery outlet outlet pressure 1 principle, use damper is adjusted on the basis of the valve, fire dampers sample, increasing temperature control device. In an open state, when the fire broke out, manual, automatic temperature fuse quickly close the valve, manual reset pull open the valve. Mounted on the fire safety requirements have ventilation, air-conditioning system piping. 2, the operating principle of the usual means, fuses stuck valve stem tip axis (blade shaft) on the fork, so that the valve is normally open state. When a fire occurs, the temperature of the air rises in the pipeline blown fuse easily, the temperature, the fusible sheet fuse, Siping damper, namely spring stem pushed off the split plate, the valve shaft is rotated by the torsion spring to close the valve . Usually, for adjusting the air volume, flue dampers, adjustable valve opening by the valve shaft (blade shaft) linkage handle, fix the position reached by the female butterfly requirements. Fork plate with the handle at the contact is formed with a ring gear, to prevent sliding rear engaging to keep the valve opening rate set unchanged. According to user requests for additional closed electrical output means (cam, micro-switches, terminals, etc.) become fire control valve. 3. Installation Notes: installation should pay attention to the direction of airflow, so the fuse first contact with the hot gas to the blade axis. At reset, the first royal top hat, pull out the fuse. Dress fusible sheet, installed fuse. So that the stem tip insert fork, then it is set valve opening. Siping damper damper size _ _ Rui Xincheng air conditioning (view) provided by the Texas Air Conditioning Equipment Co., Ltd. Rui Xincheng. Rui Xincheng Texas Air Conditioning Equipment Co. (www.dzrxckt.com) is specialized in "axial fans, mixed flow fans, roof fan, Francis fan, fire temperature exhaust fan, the wind," the business, companies adhering to the "integrity management, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Cui.