It is a very hurtful thing to leak water leaks or leaks in the drainage pipes during home renovation. Therefore, understanding the knowledge of the house drainage pipes and mastering some techniques can help maintain and improve indoor environmental hygiene. Drainage piping refers to the system of collections and discharges of sewage, waste water and rainwater drainage pipes and their associated facilities. Including trunks, branch pipes, and pipelines leading to treatment plants, whether built on the street or anywhere else, as long as they are drainage pipes, they should be used as drainage pipe statistics. Then what is the standard for the inspection and acceptance of water supply and drainage pipes ?
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Pipeline acceptance criteria
First, to the drainage pipe inspection
1. The quality of the water supply and drainage pipe and fittings must meet the standard requirements. The drain pipe should be made of rigid PVC
2. Before the work, it is necessary to check whether the original pipeline is unblocked,Concealed water supply pipelines should be inspected for water. Newly installed water supply pipelines must be pressure tested in accordance with the relevant regulations. There should be no leakage, and inspections can only be carried out in the next process.
3, the water pipeline should be temporarily sealed before the construction of the original pipeline, to avoid debris into the pipeline.
4. For the installation of the water pipe with an outer diameter of 25mm or less, a pipe card shall be installed at the corner of the pipe, water meter, faucet or angle valve, and pipe end 100mm. The installation of the pipe card must be firm. Pipes shall be threaded with exposed threads at their junctions. The installation shall be completed with a pipe clamp in a timely manner. There shall be no loosening between the pipe and the pipe or valve.
5. The position of various valves installed should meet the design requirements and be easy to use and maintain.
6. Joints, valves, and piping connections should be tightly closed without leakage. The slope of the pipeline should meet the requirements.
7. The kind of pipeline must not change the original nature of the pipeline.
8. The route arrangement should meet the design requirements. The pipeline installation should be fixed firmly, no looseness, leading, the valve is installed flat, flexible opening, smooth water, and the water meter is running normally. Acceptance by visual inspection and feel.
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