室内给水管道安装工艺资料（Process data for installation of indoor water supply pipe）.docVIP

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室内给水管道安装工艺资料（Process data for installation of indoor water supply pipe）.doc

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室内给水管道安装工艺资料（Process data for installation of indoor water supply pipe）

室内给水管道安装工艺资料（Process data for installation of indoor water supply pipe） This paper contributed by huxinxnpp. Doc document may at the WAP end of the browsing experience poor. Suggest you select TXT, or download the source file to the machine view. 1 scope this technology is applicable to water supply pipeline civil and general industrial buildings for the installation of indoor water supply pipe (hot and cold water pipes including water supply cast iron pipe and galvanized carbon steel pipe installation engineering). 2 preparation of construction material requirements 2.1.1 2.1 cast iron pipe and pipe fittings specifications should comply with the design requirements of pressure, wall thickness uniformity, smooth and clean, no blisters, cracks, burrs and bumps; inner and outer socket diameter and pipe fittings should be other rules, coating the inner and outer surface of tube should be clean and uniform, firm attachment. Pipes and fittings shall be qualified certificate. 2.1.2 galvanized carbon steel pipe and pipe fittings specifications should comply with the design requirements, both inside and outside wall galvanized uniform, no rust, no fly. Tube without partial deduction, arbitrary deduction, incomplete or inaccurate thread angle phenomenon. Pipes and fittings shall be qualified certificate. 2.1.3 meter specifications should comply with the design requirements and tap water company confirmed that the hot water system is selected in line with the requirements of the water temperature table. Case casting rules, no blisters, cracks, table glass cover damage, seal integrity, factory certification. 2.1.4 valve specifications should comply with the design requirements, meet the temperature requirements of hot water system valve. The valve body casting rules, smooth surface, no crack, flexible switch, tight closure, packing seal intact without leakage, the handwheel is intact, with certificates. 2.2 main equipments: 2.2.1: mechanical threading machine, wheel saws, benc