Pressure test standards for water supply pipes in residential buildings

I. Pressure Test Standards

The pressure applied to the indoor water supply pipes in a residence should generally be no less than 1.5 times the rated working pressure of the pipe, usually 0.6 MPa. This means that before installing the water pipes, the construction personnel need to conduct a pressure test to confirm whether the pipe's pressure-bearing capacity is sufficient.

II. Pressure Test Duration Standards

The pressure test duration for the indoor water supply pipes in a residence should generally be more than 30 minutes, and it needs to be conducted twice, with each test lasting no less than 15 minutes. For the connection points between the main pipe and the branch pipes, a specialized test of no less than 5 minutes is required.

III. Pressure Test Method Standards

The pressure test method for the indoor water supply pipes should follow the following process: Install a pressure gauge on the pressure meter, slowly increase the pressure to the design pressure, and when the pressure is stable, check if the pointer of the pressure gauge is stable. If the pointer is stable, maintain it for 15-30 minutes before gradually releasing the pressure.

IV. Equipment Standards

When conducting the pressure test for the indoor water supply pipes in a residence, professional water pressure testing equipment should be used. At the same time, the construction personnel need to carefully check whether the performance of the equipment and its accessories meets the requirements to ensure the accuracy and reliability of the test.

V. Precautions

During the pressure test of the indoor water supply pipes in a residence, the construction personnel need to pay attention to the following matters: Use clean water without grease for the test to prevent inaccurate results; During the test, no leakage is allowed, and if leakage occurs, it should be repaired according to the construction plan in time.

【Conclusion】

Through the introduction in this article, readers can learn about the relevant knowledge of the pressure test standards for indoor water supply pipes in residences, including the pressure test, test duration, and test methods. When conducting the installation construction of indoor water supply pipes in a residence, the construction personnel need to operate according to the relevant standards to ensure the safety and comfort of the residents' domestic water supply.