Company for friends living in high-rise buildings, especially in terms of building intrusion fumes, smoke and odor phenomenon in-depth and meticulous research, developed a variety of different types of check valves. These products not only solve the problem of the flue strings of smoke odor, but also has easy accessibility, easy to clean, cheap advantages, especially our new generation of products - fire flue valve, in addition to its ordinary Advantages check valve, but also with fire safety features. The new products for the construction industry to solve a big problem the fire. Also provide a guarantee for acceptance. Flue check valve series is the State Environmental Protection Administration, Ministry of Public Security Fire recommended products. China Fire Information Network for the record, in full compliance with the requirements of national acceptance. Fire flue valve, is to install a flue on the public to prevent fumes and odor of the valve, according to the requirements of the Ministry of Construction and the State Environmental Protection Administration, before the delivery of residential concentrated flue check valve must be installed to reduce pollution, Meanwhile, it is also a symbol of human civilization and progress. 2009 latest patented product, easy to install just five seconds, in line with national fixed fire extinguishing systems for flue fire inspection check inspection standards easily passed. Flue fire valve is specialized to solve high-level kitchen odor, anti-tobacco product manufacturing and other issues, stainless steel flue fire backflow valve to prevent fumes from cleaning more convenient diversion valve to reduce flue fire hood hoods resistance, resistance against the flue valve is to prevent oil entering the room, the common flue is also useful to check a fixed perforated plastic glass installation, installation of flue fire now check valves are generally more formal real estate development company installation, check the flue fire in China has basically to promote open, some areas still use plastic, to everyone's life and property safety valve is recommended to use a flue fire with fire features, or stainless steel fire backstop valve.