Damper excellent quality, standardization, interchangeability. Board quality thick. Fusing timely. Fire dampers, normally open remote control damper, 70 degrees or 280 degrees closed, generally installed in the duct through the firewall, fires off effect, you can set the output electrical signal damper principle, the temperature exceeds 70 degrees or 280 degrees valve Close linkage to send (s) off the fans. Damper installed in the ventilation, air conditioning system, the return air duct on the road, usually was turned on, when the gas pipeline fire when the temperature reached 70 ℃, fusible film fuse, the valve automatically closes FH-Y in the torsion spring force -1 smoke dampers Material: galvanized steel Features: 1. Usually it was always open when the fire smoke (temperature) sensor signal sent by the control center, input 24V DC damper actuator damper movement within the solenoid is energized wholesale, the valve automatically closes and the output off signal. After a manual reset valve operation. 2. Valve can also be manually shut down or shut down 70 ℃ action. 3. Control voltage DC24V, micro switch contact capacity of AC380V, 3A, solenoid operating current 0.3A. 4. Control and related equipment interlock. 5. When full drag coefficient f≤0.5. Size: W × H with duct size Description: FH-Y-1 (rectangle) Features # 70 ℃ fuse action, the valve automatically closes. # DC24V electrical signal input valve quickly shut down automatically. # Manually shut down. # Output off signal, interlock air conditioning fan stops. # Manual reset opening. # Smoke with fire dampers usually always open, 280 ° C fuse action closed. # Manual adjustment of the valve opening angle, adjust the air flow. Remote control damper, Rui Xincheng air conditioning, fire dampers Panjin by Rui Xincheng Air Conditioning Equipment Co., Texas. Rui Xincheng Texas Air Conditioning Equipment Co. (www.dzrxckt.com) quality of service and products, continue to receive the recognition and trust of new and old customers and the industry. Our company is a certified member of the whole alliance network operators, business alliance customer service icon on the page, you can talk directly with our customer service staff, to our future cooperation happy!