Fire control valve is usually installed on both the demand and the need for fire smoke dampers workplace ventilation ducts can also be used for ventilation or air conditioning ducts in the ceiling height of the ceiling of the upper duct gas fire extinguishing system. First, the fire control valve main functions, features 70 ℃ fuse action, the valve automatically closes the valve DC24V input signals, quickly closed manually shut sfdy damper, manually adjust the torque output shut off signal, eliminating air-conditioning fan interlock control center DC24V power output signal allows the valve automatically reset to the open state, such as the use of shape memory alloy 70 ℃ temperature sensor, when the valve is closed damper 150 ℃, do not replace the temperature sensor, can be used repeatedly to manually adjust the valve opening angle of smoke dampers, fire control valve, 70-degree fire dampers, exhaust valves, dampers works, fire dampers pictures, damper installation location, wiring diagram 280 degrees dampers, exhaust fans, diffusers, dampers, positive pressure blower, air flow control valve , the price difference between the fire dampers, fire dampers 280 ° flue damper and smoke damper where the damper is closed, the main role is for a room to prevent fire and smoke after the fire through the pipeline collusion to another room. Smoke damper mounted on the exhaust pipe and smoke damper usually closed after the fire room exhaust fan starts, while smoke damper open, smoke room on fire, in order to achieve a timely escape when officers from fvd damper smoke damage, the fire is too large, the flame will enter the exhaust pipe through the air vents, this time on a 280 ° smoke damper rod fusible fuse, smoke damper closed, while giving smoke signals Fans closed; dampers, spiral duct, electric valve, valve actuators, Siemens damper actuators, valve selection and installation, valve manufacturers, valve legends, outlet valve, manual valve, pressure delivery Hao Yang valve air-conditioning equipment (Figure), sfdy fire dampers, fire dampers by Texas Hao Yang Huimin Air Conditioning Equipment Limited. Air Conditioning Equipment Co., Texas Hao Yang (www.dzapjt.com) adhere to the "people-oriented" business philosophy, has a professional staff, and strive to provide the best products and services to contribute to the community, and to welcome new and old customers to visit us, sincere cooperation for a better future. Hao Yang air conditioning equipment - your trusted friend, Company Address: Dezhou Economic Development Zone, Contact: Mr Zhu.