[Tianjin Jin Zhongji HVAC purification equipment to recommend the star product -] 280 degrees using fire damper valve exhaust pipe, and the rest by the fire district with a high of 70 degrees damper regulation speaks of "smoke damper "galvanized valve manufacturer, unlike the" damper. " Class 1 fire, fire dampers: the role of the fire, 70 ° C temperature fuse automatically shut down, can be linked, ventilation and air conditioning systems used in the duct 2, smoke dampers: to rely on smoke control action, power closing (smoke). can also be 70 ° C temperature fuse automatically turned off (fire) is used in the air conditioning system HVAC duct [Tianjin Jin Zhongji purification equipment to recommend the star product - Jinzhong Ji plate discharges] 2015 plate discharges Preferred - Tianjin Jin Zhongji HVAC Purification Equipment Co., design and manufacture integrated valve flanges are galvanized plate number, 100% quality assurance, factory outlets, price concessions, reliable, welcome to our factory tours. Plate discharges (both with remote devices) are generally used for exhaust ports mounted facedown occasions. Without leafy exhaust port with the remote device is generally perpendicular to the plane for the exhaust port installed and can be operated by a human occasion with far leafy exhaust port actuating means can be used either to install the exhaust port facing down the case can also be used for manual operation of the exhaust port side vain vertical installations. Galvanized air flow control valve, the base (certified), Tianjin valve provided by the Tianjin Jin Zhongji HVAC purification equipment. Tianjin Jin Zhongji HVAC purification equipment Limited (www.Jzjnt.com) is a leader in Tianjin, 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 demand. In the group leadership with the staff warmly welcome all inquiries negotiations to create a better future for the group.