The acceptance of the quality of the thin-wall flexible air duct is carried out according to the design drawings and this specification。 The purchased thin walled flexible wind pipe in the project must also provide the relevant product qualification documents or the verification of the strength and tightness, which can be used in accordance with the requirements。
1. It is suitable for the inspection and acceptance of the processing and making quality of metal and nonmetal thin-wall wind pipes and composite thin-wall wind pipes or air ducts used in ventilation and air conditioning works of construction projects.
2, thin wall sealed air pipe should be flexible plate connection seal, the sealing sealant and other methods. Sealant performance should comply with the requirements of the use of the environment, the sealing surface should be located in the thin-walled pressurized air duct on the positive side.
3, the thin air pipe production quality acceptance tact, should be carried out respectively according to their materials and Systems category and the use of the different places, mainly including thin walled tube material, flexible wind specifications, strength, tightness and product quality etc。。
4 、 galvanized steel sheet and all kinds of steel plate with compound protective layer shall be made of bite joint or riveted joint, and the welding connection method that does not affect the anticorrosion performance of protective layer shall be adopted.
5, thin flexible wind pipe, internal and external wall smooth, air duct resistance is small, send and exhaust air does not produce two times noise, reduce energy consumption, save operation cost。
Seal 6, thin tact duct, should be connected with plate sealing, the sealing sealant and other methods. Sealant performance should comply with the requirements of the use of the environment, the sealing surface should be located in the thin-walled pressurized air duct on the positive side.
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