室内给水管道安装（Installation of indoor water supply pipe）.doc

室内给水管道安装（Installation of indoor water supply pipe） Installation of indoor water supply pipe This chapter applies to civil and general industrial building water supply pipes (including hot water pipes for water supply cast iron pipes and galvanized carbon steel tubes) Engineering. 1 material requirements 1.1 cast iron pipe and pipe fittings specifications should comply with the design requirements of pressure, wall thickness uniformity, smooth and clean, no blisters, Cracks, bristles and knots; the inner and outer diameters of the spigot and socket and the fittings shall be in good shape; the anticorrosive coating on the inner and outer surfaces shall be neat and even Solid. Both pipe and fittings should have factory certificate. 1.2 galvanized carbon steel pipe and pipe fittings of the specifications should be consistent with the design requirements, galvanized pipe inside and outside the uniform, no corrosion, no flying thorn. tube No partial deduction, arbitrary deduction, incomplete or inaccurate thread angle phenomenon. Both pipe and fittings should have factory certificate. 1.3 water meter specifications should comply with the design requirements and the water company confirmed, hot water system to meet the temperature requirements of the hot water meter. surface The shell casting rules, no blisters, cracks, table glass cover damage, seal integrity, factory certification. 1.4 valve specifications, models should meet the design requirements, hot water system valve meets the temperature requirements. The body is cast with a clean surface, No cracks, flexible shape, close tight, packing seal intact, no leakage, hand wheel intact, no damage, there is a factory certificate. 2. main machines and tools 2.1: mechanical threading machine, wheel saws, bench drill, electric hammer, electric drill, electric welding machine, electric pressure test pump. 2.2 sets of tools: wire board, Guan Qian, pressure pliers, hand saw, hammer, wrench, pliers, chain bending machine, hand p