The indoor PPR water supply pipe should be tested with a pressure test pump. The test pressure should not be less than 0.6 MPa (about 6 kg/mm), and the gauge pressure should not drop after 15 minutes of static pressure.
It should be reminded that during the pressure test, the pressure should not exceed 86 kg/mm, so as not to damage the pipeline material and affect the service life. The acceptance of waterway renovation has evolved with reference to the acceptance standards for building water supply. At present, there is no specific and express provision for the acceptance of home improvement waterways in the industry.
Generally, the acceptance method for ordinary houses is: to connect all indoor cold and hot water supply pipes through hoses, so that It becomes a loop, the pipeline is filled with water (air), the switch of the main water supply valve controlled by the household is closed (it must be closed tightly, otherwise the data will be inaccurate if the main valve seeps water, it will be handled in another way), and the pressure is tested with a manual or automatic pressure test pump.
The experimental pressure is 1.5 times higher than the working pressure, generally 0.8MPa, and the pressure drop within 30 minutes does not exceed 0.05MPa. At the same time, it is qualified to check that there is no leakage at each connection. In the case of test water pressure of duplex or multi-story villas, the test time can be appropriately extended.
