[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - ventilation ducts] ventilation ducts are industrial and civil engineering, ventilation and air conditioning pipes made of metal or non-metallic pipe for air circulation and reduce the concentration of harmful gases a municipal infrastructure. Duct Fabrication and installation of used plates, profiles and other major finished materials, design and related products should comply with existing national standards prescribed angle iron pipe flange, and apply the factory inspection certificate shall be carried out when the current national standard materials approach acceptance. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - ventilation and air conditioning duct] construction duct component mounting provisions are there? 1. Determine the size according to the design specifications and installation location of the duct; 2. duct and connecting interface components from the wall from floor should not affect the operation of the valve member is prohibited interface installed in the wall or floor; 3 The wind pipe flange connection when using. Its nuts should be on the same side; protruding flange gasket should people wind pipe wall basement ventilation ducts, nor protruding outer flange; 4. duct with duct connection, should take duct flanges or embedded mounting coupling form interface, combined with fire-resistant joints should be filled packing plant ventilation ducts, duct interface should be firm; non-crossing and laying the pipelines within 5 duct; 6. Secure outdoor riser cable, is strictly prohibited and lightning or lightning network connected; 7. transport contain flammable and explosive gases or installed in flammable and explosive environment duct system should be well grounded, through the living room area or other auxiliary production, should not be located in the interface, and should have strict no leakage measures; 8. transport produce condensate or vapor containing Yan moist air duct, it should not be set at the bottom of the seam, and should set the lowest point in the duct installed in the drain; 9. duct Determination of the hole should be set at no vortex area and easy to measure and observe the site; ceiling duct side within a given hole location, should be left active ceiling panels or inspection openings. Basement ventilation duct pipes _ _ Tianjin Tianjin 金中基 duct HVAC manufacturers provided 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!