Making duct material is to ensure the cleanliness of the basic conditions for air conditioning material selection. Clean air conditioning duct systems generally use galvanized steel processing. Should be of high quality galvanized steel plate, galvanized layer standards should> 314g / m2 cosmetics plant decontamination, and should be uniform coating, free from the shell, no oxidation. hangers electronic purification plant, reinforced frame, connecting bolts instrumentarija room purification, Washers, duct flanges, rivets should be galvanized fittings, flanges and gaskets should be used flexible, does not produce dust, there is a certain strength of soft rubber or latex sponge, external insulation duct can be more than 32K flame density PE board to special glue, glass wool and other fiber products should not be used. material procurement Material Purchase must be in accordance with plans by species use the same kinds of products have quality assurance manufacturer's product. Also note that the material specifications purification plant physical examination, material finish, the plate should also check the flatness of the corners of the square, galvanized degree bonding layer. After the material procurement process should also keep intact transport packaging, moisture-proof, anti-shock, anti-pollution. Materials custody. Clean air conditioning materials should set up a dedicated warehouse, or a centralized repository. repository should be clean, no pollution, avoid damp, especially dampers, air, muffler and other parts should be stored tightly packed. Clean air-conditioned warehouse storage materials to shorten the time, should be used with the purchase. produced wind workable whole plate should be shipped to site, to avoid contamination of parts caused during transportation. purify air conditioning system noise exceeds the allowable value, should take noise, noise, noise vibration and other control measures. In addition to the accident outside ventilation, clean room ventilation to deal with noise reduction systems design. Clean air conditioning systems, according to the interior noise level requirements, wind speed inside the duct should be chosen according to the following provisions: a total duct 6 to 10 m / sec. Second, no delivery, return air duct branch 6 to 8 m / sec. Third, there is delivery, return air duct winds 3 to 6 m / sec. Electronic purification plant purification plant _ _ Tongliao preferred Ecota purification by decontamination Ltd. Shandong Yick Tak. Shandong Ecota decontamination Ltd. (www.shandongyide.cn) strong, credible, in Jinan, Shandong's construction industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shandong Ecota purify and you work into the brilliant, for a better future!