Quality galvanized iron vent pipe processing requirements: In order to ensure the rigor of Hangzhou plant ventilation cooling flanges, gaskets using sealant between the flange 8501 to do the sealing material, bolts through the direction of the requirements of the same, should pay attention to tighten the tension caused by uneven Duct twist. You can even plant cooling into a certain length according to the situation on the ground, and then the overall lifting, or to stand on the stage duct connection metal plant cooling section by section, the installation is generally safe by first dry pipe Hangzhou plant cooling dust, after security manifold order. Require installation of fire dampers or silencers, the major side as more than 500mm, should be a single set boom. Plumbing vent pipe installation quality requirements: light leakage and air leakage test: leaked assay should be used to light the strong penetration of the pores of the duct system tight degree detection method, using safe light source has a certain strength. A low-pressure lamp 100W with protective cover of low pressure lamps, or other low-voltage light sources. Testing found slit-shaped light leakage should be promptly sealed. Hangzhou Industrial plant cooling | Chunan County plant cooling | ventilation supplied by Hangzhou Hangzhou Xingda Xingda ventilation equipment. Hangzhou Xingda ventilation equipment (www.tz1288.com/shop/index_6525.html) strong, credible, in Hangzhou, Zhejiang fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving ventilation Xingda innovative ideas will lead into the brilliant and you work for a better future!