Acceptance requirements and methods for hidden works of water supply and drainage pipelines

Acceptance requirements and methods for hidden works of water supply and drainage pipelines

First, the basic requirements:

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 drainage pipe and parts.

2. Before the construction, check whether the original pipeline is unblocked, and then proceed with the construction. After the construction, check whether the 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, Drainage pipelines should be temporarily sealed before the construction of the original pipeline to prevent debris from entering the pipeline.

4. For the installation of the water supply pipe whose pipe diameter is below 25mm, a pipe card shall be installed on the pipe at the corner of the corner, water meter, faucet or angle valve and the pipe end. 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 installation of a variety of valve positions should meet the design requirements, ease of use and maintenance.

6. All joints, valves and piping connections should be tight and there should be no leakage. The slope of the pipeline should meet the requirements.

7. All kinds of pipelines must not change the original nature of the pipeline.

Second, the acceptance requirements and methods:

1. The pipeline arrangement should meet the design requirements, the pipeline installation should be fixed firmly, no looseness, leading, the valve installation is smooth, open flexible, the water flow, the water meter is operating normally. Acceptance by visual inspection and feel.

2. There should be no leakage at the joints between pipelines and appliances, pipelines and pipelines. Using the method of passing water, visually and feel the method to check for leakage.

3, the installation of water pipes shall not be close to the power supply, and the distance between water pipes and gas pipes shall not be less than 50mm. Check with a steel tape measure.

Hydroelectricity transformation hydropower acceptance faucet

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