Water supply and drainage pipeline installation instructions

Chapter one. Water supply and drainage pipeline installation instructionsOne, this chapter apply to indoor and outdoor life with water supply, drainage, rainwater pipe installation, a total of 289 Buddhism.Second, the boundaries:1. The feed water pipe:(1) inside and outside boundary: the entrance set is bounded to the valve, the valve without valve by a building external wall 1.5 m;(2) and municipal pipe line by a water meter well, no water meter well, to meet with municipal pipeline is bounded.2. Pipes:(1) indoor and outdoor to leave home the first drainage inspection Wells is bounded.(2) the outdoor pipeline and municipal pipe line to meet with municipal pipeline is bounded.Three, outdoor pipe installation irrespective of the ground and bury, all use the same quota.Four, this chapter includes the following content:1, pipe fittings and parts installation.2, water supply pipe hydraulic test and disinfection washing, drainage pipe irrigation experiment.3, indoor water supply and drainage and rainwater pipe (except for the indoor cast iron feed pipe and DN 200 pipes or higher) have been included pipe clamp (seat), hook, line hanging bracket to Ann and paint derusting.4, indoor and outdoor water supply carbon steel pipe, cast iron pipe and the rainwater pipe including indoor drainage cleaning brush paint, the paint or coating is calculated separately according to the design requirements. Outdoor drainage cast iron pipe including derusting, brush paint anticorrosion primer and asphalt, shall not be repeated calculation.Five, steel rain storm sewer quota includes in the steel pipe production, installation, must not be repeated. Other rain water bucket is included in the rainwater pipe installation.

Chapter two, indoor water supply aluminous model multiple tube, plastic tube, etc., if the design rule wall or floor (ground) surface dark apply, norm artificial multiplied by the coefficient of 0.80, while in real adjusting pipe fittings and pipe clamp, buckle, the dosage of scaffold materials.

Chapter three, the quota does not include the following contents:1. The pipe installation does not include the flange, valve installation, according to this project shall be calculated accordingly.2. The outdoor water supply pipe, indoor water supply cast iron pipe and DN 200 pipes or not including pipe support, occurs according to the first chapter the pipe support project is calculated.3. The pipe heat preservation heat insulation and thermal insulation outer protective layer, according to the eleventh of the corresponding computation program.4. The pipe wall (floor) set up the steel casing, pipeline crossing the basement wall, external wall and wall of reservoir using waterproof casing, calculated at the sixth volume of corresponding project.5, water supply cast iron pipe (including the feed water of cast iron pipe storm sewer) according to consider with asphalt anticorrosive coating, if the actual field corrosion protection or strengthening antisepsis, calculated separately according to the design requirements.6, indoor and outdoor pipeline laying, pipeline foundation, earthwork, well (ground) and the wall surface dark apply pipe cement mortar layer, etc should be calculated separately according to the corresponding project construction consumption quota.