Fire and smoke control valve · DC24V input signals, automatic damper action solenoid valve automatically closes. · 70 ℃ temperature sensor operation, the valve automatically closes. · Manually shut down. · Output off signal or interlock control signal. · Manually adjust the blade angle, five-speed adjustment amount of wind. · Operating voltage: DC24V + 10% 280 degrees dampers price, -15%. · Working current: ≤0.3A. · Temperature sensor is 70 ℃ fusible sheet. Such as the use of shape memory alloy 70 ℃ temperature sensors, please indicate in the design and ordering. · Amount of air leakage: the national standard (see test report). Insulation resistance:> 20M refractory time> 90min · corrosion resistance and reliability in line with the national movement. Product; smoke dampers are mainly used on duct ventilation and air conditioning systems damper, usually in a "normally open" state, when the air temperature reaches 70 ℃, by internal fuse action valve automatically closes. Exhaust port, exhaust valve is mainly set in the pipe exhaust system, or installed in the inlet of the exhaust fan fire, usually turned off the electric fire control valve, in case of fire, through interaction, automatically turn on the exhaust. Electric fire control valve _ Chen Yu-conditioned factory outlets (certified) _ damper Puyang City by Wu Chen-yu air-conditioning Limited. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Chen Yu-conditioning in leadership with the staff warmly welcome all inquiries negotiations to create Chenyu conditioning a better future.