Water and electricity acceptance criteria
Acceptance of upper and lower water pipelines
1. Acceptance prerequisites
The quality of water supply and drainage pipe materials and water pipe fittings must comply with the standards set by the current state, including the name of the manufacturer, the factory brand, the product certificate, and the warranty book.
2. Acceptance requirements
(1) The pipeline should be installed with special tools. The nozzle must be treated with a standard reamer on the aluminum-plastic pipe at the nozzle end to prevent damage to the inner double-layer guard ring of the copper joint. No leakage shall occur.
(2) All kinds of valve installation positions should meet the design requirements and be easy to use and maintain.
(3) Pipes and pipes and valves shall be tightly connected. The pipes shall be threaded, and there shall be exposed threads at the joints. The pipes shall be fixed in time with the installation completed and no leakage shall occur.
(4) Valves and faucets should be installed in a correct position, flexible and convenient to use, with unobstructed water flow and normal operation of the water meter. Under the premise of satisfying the use, the valve, water meter, etc. may be in a relatively concealed position or surface decoration is appropriate.
3, acceptance methods and common sense
(1) Whether the running direction of the water is correct or not can be determined by visual inspection according to the drawings.
(2) Check whether the two systems of cold and warm water pipes are correctly installed. The general hot water pipes are red. The hot water taps have red marks in the middle of the switches. They can be tested by cold and hot water.
(3) Check the laying of pipes and power supply, gas pipe position, general spacing ≥ 50mm, available tape inspection.
(4) The aluminum-plastic compound pipeline should not be stretched and straightened in the dark deposit. It may leave room for it to avoid the leakage of the hot water through the expansion of the pipeline. You can use visual inspection to determine a slight bend.
(5) Into the wall pipe slightly recessed wall, the construction is the acceptance between the attention and the wall can be flat, otherwise, after the next process will have a sense of external sense of sudden, you can feel touch.
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