First of all, do a good job of pressing test.
Frequently asked questions: Some construction teams don't use pressurized pumps, and only judge whether the water pipe joint is qualified by observing the water pipe leakage with naked eyes. There is no guarantee that the water pipe will not leak when the water pressure increases.
Acceptance strategy: after the water pipe is laid, close the valve of the water meter first, and seal the outlet of the pipe with a plug, leaving only one entrance. Connect a press (a simple hand pump) at the entrance, and use the press to press the air pressure in the water pipe to 6~8 atmospheres (0.6~0.8 MPa) for more than 30 minutes. During this period, the observed pressure drop is not more than 1 atmospheric pressure, and there is no water leakage in all joints and valves. Decompression? After 2~3 hours, the tube can be sealed.
Second, measure the distance between hot and cold water pipes.
Frequently asked questions: The hot and cold water pipes are not installed according to the specifications, the spacing is greater than or less than 15cm, and the water heater interface will not be connected with the water pipes.
Acceptance strategy: the owner can take a ruler to measure, and the pipe diameter spacing should be 15cm, and the error should be within 0. 1cm.
Three, put an end to water pipes and gas pipes cross.
Common problems: the gas pipeline is pressed under the water pipe, which is easy to cause water leakage or gas leakage.
Acceptance strategy: ensure that the distance between gas pipeline and water pipe is greater than 10 cm.
Fourth, avoid water and electricity.
Common problems: The water pipe is pressed on the pipeline. If the water pipe leaks or water drops appear on the pipe wall, the wires in the pipeline may be soaked, resulting in water leakage.
Acceptance strategy: it is forbidden to press the water pipe on the pipeline. First of all, we must distinguish between water pipes and pipes. The thick pipe marked with red line is hot water pipe, the thick pipe marked with blue line is cold water pipe, and the thin pure white pipe is pipeline.
Five, it is forbidden to water and electricity in the same tank.
Frequently asked questions: Water pipes and pipelines are buried in the same water tank, which has potential safety hazards. Because water is a conductor, if it leaks electricity, the whole building will be charged.
Acceptance strategy: water and electricity must be divided into troughs with a spacing of 15cm.
Six, do not leave redundant joints
Frequently asked questions: There is a joint near the water pipe joint, which is easy to leave a water leakage hazard.
Acceptance strategy: ensure that two water pipes are directly connected through elbows, and there are no redundant joints.
The above is an introduction to Bian Xiao. I hope I can help you.
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