[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - galvanized steel sheet metal ductwork] is the air conditioning duct, ventilation exhaust system, the most traditional and most extensive product. Galvanized steel sheet duct wall is smooth, low resistance, air tightness, high bearing strength. Steel duct convenient spot making pipes, and civil works closely, can fit very complex ventilation projects. Its cost than stainless steel duct lower angle iron flange pipe, use very extensive. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - duct] broadcast connection or flange connections with duct connections shall comply with? 1. plug connection or flange connection should be based on the use of the duct, according to the specifications set forth in Table 5.1.4 of Annex material selection. 2. The length of the plug connector should not affect normal installation pipeline project, and should ensure their close contact in two perpendicular directions when duct installation. 3. The length was longer than 320mm rectangular plug connector when the wind pipe installation, air duct in the four corners of paste thickness not less than 0.75mm galvanized Cartesian gaskets, gasket width should be at right angles to the wind pipe is equal to the plate thickness, no side should be less than 55mm. plug connector should be firmly bonded with the duct. The low pressure system for side winds grew to 2000mm, medium or high voltage system duct length was longer than when 1500mm. Duct flanges should be made of aluminum and other metal materials. Angle iron flange pipe, pipe Tianjin, Tianjin 金中基 duct HVAC manufacturers supplied by Tianjin Jinzhong Ji 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!