[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - Ventilation ducts - Former construction equipment mains should engineer pipeline project, the various types of work in the pipeline, in-line painted on a plan. Each pipeline with a color pen. Integrated in the intersection point of its elevation, to see if there is contradiction at the angle iron pipe flange, to discover, to solve the problem before installation. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - galvanized duct] forming thin steel rectangular duct flanges regulations are there? 1. The thin steel flanged duct connecting end should be smooth interface, the interface should be fixed at the four corners of the corner piece, which is made of galvanized steel pipe price, thickness not less than 1.0mm. Fixed corner fittings and flange connections should using sealant for sealing; 2. thin steel duct flange end face in the form of the long side and apply duct size should be in accordance with Table 4.2.11; and 3. The sheet steel flange can be riveted or crimped to fix the body. Medium pressure duct system should be riveted or crimped spacing is 120mm ~ 150mm; high pressure duct system should be riveted or crimped spacing of 80mm ~ 100mm long side of the low pressure system duct size larger than 150mm, medium pressure system is larger than the size of the long side of the duct. When 1350mm. Can be used to connect the top Szymborska. Top Szymborska width appropriate for the 25mm ~ 30mm, thickness of not less than 3mm, the top wire suitable for M8 galvanized screws. Ventilation ducts _ _ Tianjin Tianjin Jinzhong Ji HVAC duct provided by the Tianjin Jinzhong Ji HVAC purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) strong, credible, in Tianjin fans, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the group into the brilliant and you work for a better future!