The pipe and PVC fittings pressure should be 1.5 times the working pressure of the piping system, but should not be less than 0.60 MPa. Before testing water pressure, Note safety principles and protection regulations for pressure pipes. The following steps should be inspected in the hydrostatic test of the pipe and PVC fittings, respectively:placing the lid at the end of the pipe, slow water entry, gas pipelines are an exception, boiling water after inspection is required;The system should increase the pressure slowly, note that this time should not be less than 10 minutes; After applying pressure to the set test, stop the pressure and regulator for 1 hour, and observe water leakage if it exists; Then apply pressure to the test to remove the water pressure in the pipe, the expansion volume of the pipe in the pressure test will be an interfering factor. Also note that pipes and fittings should be kept away from thinners, soluble adhesives, organic solvents, lubricants, bleaches, oxides, pipe sealants, or hydrocarbon cleaners.
