Water Tightness Of PEX Expansion Fittings

　　To verify a certain effect of PEX expansion fittings before use, some experiments are usually carried out. Some performances can be verified through experiments. Water tightness is a performance that needs to be tested frequently. The following content introduces the water tightness of PEX expansion fittings.

　　1. PEX expansion fittings can be applied to water supply pipelines there are UPV-C pipes, steel pipes, gray iron pipes, FRP chucks, old ink pipes, etc. The test pressure for the water tightness test of pipe fittings does not exceed the pipeline pressure level or does not exceed 1.5 times the system's low-pressure level fittings. After the pipeline pressure reaches the experimental pressure, the temperature of the experimental medium in the pipeline must be kept consistent with the temperature around the pipeline until the temperature and pressure are stable.

　　2. The water tightness test needs 24 hours to adjust. If there is no obvious leakage or pressure drop after the test, it is to pass the test. PEX expansion fittings have the advantages of low price, convenient construction, good hydraulic conditions, non-toxic, corrosion resistance, low-temperature resistance, mechanical vibration resistance, etc., making it an ideal pipeline for water supply projects. Once the wiring test is started, it will go through various stress tests to test what happens in other situations, which is also the focus of the water tightness experiment.

　　If the water tightness of PEX expansion fittings meets the requirements, the construction can be done. To improve the construction efficiency, several tests can be done before the user construction, and all the tests must be recorded during the test.