Mechanical exhaust system exhaust port, exhaust valves and smoke damper settings should meet the following requirements: 1 exhaust port or exhaust valves should smoke partition settings. Exhaust port or exhaust valves and exhaust fan should chain, when any one exhaust port or exhaust valve opens, exhaust fan should be able to start their own; two exhaust port or exhaust valve is normally closed leafy row smoke dampers mouth, set manual and automatic opening device; 3 exhaust port should be set on the ceiling or wall near the ceiling dampers and adjacent neighborhood safe exit direction along the walkway between the edges of the minimum horizontal distance of not less than 1.5m. Located on the roof of the exhaust port, or combustible materials away from combustible components of the distance of not less than 1.0m; 4 underground mechanical exhaust system, semi-underground places, in addition to dance Movies Entertainment venues and building area of ??more than 50m2 room outside , exhaust port can be set in the evacuation corridors; 5 exhaust smoke partition mouth horizontal distance from the farthest point should not exceed 30.0m; the exhaust manifolds should be set when the flue gas temperature exceeds 280 ℃ closed on their own time smoke damper; 6 exhaust port of the wind speed of not more than 10m / s. Fire dampers, spiral duct, electric air valve, valve actuators, valve actuators price, selection and installation of valve, valve manufacturers, valve legends, outlet valve, manual valve, pressure delivery valve row 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, are pressure blower, air flow control valve, fire dampers price, multi-page outlet flue damper damper, Texas Hao Yang Air Conditioning Equipment Co. factory direct circular air flow control valve galvanized duct air flow control valve butterfly valve leafy Texas regulating valve (with flange) electric damper uses and characteristics of the valve body using the same material as the processing and seals, the use of electric or pneumatic drive. Their body temperature with suitable selection may be, nominal ≤0.6MPa. Generally applicable to the industry, metallurgy, environmental protection, ventilation pipes for adjusting the flow of the medium. Fire dampers, spiral duct, electric air valve, valve actuators, valve actuators price, selection and installation of valve, valve manufacturers, valve legends, outlet valve, manual valve, pressure delivery valve; Fire dampers 280 degrees fan coil air, air-conditioning vent, central air conditioning thermostat, glass blower, air flow control valve, Air Conditioning Equipment Co., Texas Hao Yang damper plate discharges | Hao Yang air conditioning equipment (certified) | Xin County fire damper is provided by the Texas Air Conditioning Equipment Co., Ltd. Hao Yang. Air Conditioning Equipment Co., Texas Hao Yang (www.dzapjt.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. Hao Yang air conditioning equipment in leadership with the staff warmly welcome all inquiries negotiations to create Hao Yang air conditioning equipment a better future.