Automatic smoke damper · 70 ℃ temperature sensor movement, instantly close the valve. · Manually shut down, manually open. · DC24V electrical signal, pull solenoid valve closes. · Output signal damper closed, interlocking fan. Input DC24V signals, the valve automatically resets open. ? When the flue gas temperature is below 70 ℃, the temperature sensor can be reused after the automatic reset. · Manually adjusting the valve blade angle, adjust the air volume is divided into five stalls choice points; 1. The main control parameters for the selection damper specifications. 2. damper suitable for ventilation and air conditioning system, fire dampers regulating valve, in addition to public buildings, kitchen hood system with smoke damper damper works, the operating temperature of 150 ℃, the general ventilation and air conditioning systems with fire dampers operating temperature of 70 ℃. 3. The damper is suitable for pipe ventilation, air conditioning or exhaust system, the scope and application of the basic functions in Table 1. Smoke damper | Chen Yu-conditioned factory outlets (certified) | Jining city damper provided 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.