Product Name: smoke fire control valve and input dc24v electric signal, the electromagnet action air dampers, the valve automatically closes. · 70 ℃ temperature sensor operation, the valve automatically closes. · Manually shut down. Output interlock closing signal or control signal. · Manually adjust blade angle, five-speed adjustment amount of wind. · Operating voltage: dc24v + 10%, - 15%. · Working current: ≤0.3a. · Temperature sensor is 70 ℃ fusible sheet. Such as the use of shape memory alloy 70 ℃ temperature sensors, please indicate when designing and ordering. · Leakage Rate: meet the national standard (see test report). Insulation resistance:> 20m refractory time> 90min · corrosion resistance and reliability of the national movement. Fire dampers installed in the central air-conditioning duct system works easily fluxing temperature control, by the action of gravity and spring mechanism closes the valve. When a fire occurs, the fire invaded the duct, high temperature causes the fusible alloy melting on the valve, or to memory alloy deforms the valve automatically closes, for air duct and the fire district throughout occasions. Products term damper installed in the ventilation, air conditioning system, the return air duct on the road, usually was turned on, when the pipeline gas temperature reached 70 ℃, fusible film fuse flue damper fire, torsion force valve auto shut off within a certain period of time to meet the fire resistance stability and fire integrity requirements, since the role of smoke fire retardant effect of the valve. Customized best flue damper when the valve is closed, the output off signal. Smoke damper installed in the exhaust system pipeline, usually generally was closed when the fire manual or electric opening, from the smoke effect. When the internal temperature of the flue gas exhaust pipe 280 ℃ closed within a certain period of time to meet the fire resistance stability and fire integrity requirements, from the valve exhaust effects. 2 Product Principle installed in the central air-conditioning duct system works easily fusing temperature control gold using gravity acting and spring mechanism closes the valve. When a fire occurs, the fire invaded the duct, high temperature causes the fusible alloy melting on the valve, or to memory alloy deforms the valve automatically closes, for air duct and the fire district throughout occasions. 3 Product Categories damper 1. damper, normally open, 70 degrees closed, usually installed in the duct through the firewall, fires off the role, you can set the output electrical signal, the temperature exceeded 70 degrees automatic smoke damper valve Close linkage to send (s) off the fans; Products remote control exhaust valve is usually installed in the exhaust duct system or exhaust port of the stainless steel flue damper manufacturers, usually normally closed. Smoke detector fire fire sends out signals to the control center via the remote controller DC24V electric solenoid valve flue damper quality models, the valve opens quickly, you can quickly open the manual valve, manual reset. One can manipulate the valves in the room. Duct exhaust valves at the product attributes (remote control exhaust valve) is installed in the exhaust system can also be installed at a great decorative exhaust port, usually in a normally closed state. Technical indicators 1, according to the fire signal DC24V electric open; 2, manual cable, the valve opening; 3, the output signal of the valve opening; 4, joint control signal output; 5, manual reset; 6, manual button, the valve opening; 7, remote manual reset; exhaust valve (exhaust valve remote control) Other Description Product Related Keywords: exhaust valve exhaust fan exhaust valve trade description down payment under-production!! Quality flue damper model, GREAT air conditioning (certified), provided by the Shandong Liaocheng flue damper Fan Air Conditioning Equipment Co. GREAT. Shandong GREAT Fan Air Conditioning Equipment Co. (www.greatfengji.com) is an industry leader in Shandong Dezhou, fans, ventilation equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. GREAT leadership in the staff warmly welcome all inquiries negotiations to create a better future GREAT.