Pe pipe testing machine pressure value requirements specification requirements:
1. The test pressure of the cold water pipe shall be 1.5 times of the working pressure of the piping system design, but not less than 1.0Mpa, and the time shall not be less than 1 hour.
2. The test pressure of the hot water pipe shall be 2.0 times of the working pressure of the piping system design, but not less than 1.5Mpa, and the time shall not be less than 1 hour.
3. The pipe pe pipe testing machine shall meet the following requirements:
a. The hot (electric) welded pipe shall be
pe pipe testing machine after the interface is completed for more than 24 hours. The total length of the pipe of a pe pipe testing machine shall not exceed 500m;
b. Before the pe pipe testing machine, the pipeline shall be fixed firmly and reliably, and the joint shall be exposed. Except for the valve, the branch end shall not be connected with the water distribution parts of the sanitary appliance;
c. Pressurize the pump by hand. The pressure gauge for measuring the pressure of the pump pressure should be installed at the lowest point of the bottom of the pipeline system (the pressure value of the geometric height difference should be converted when the lowest point is not reached), and the accuracy of the pressure gauge should be 0.01 Mpa;
d. After filling the pipeline with water, first discharge the air in the pipeline, block each exhaust outlet, and check the watertightness; 5. Slowly increase the pressure, the boosting time should not be less than 10min, and rise to the specified test pressure (within 30min, Allow 2 times to apply pressure to the test pressure), stabilize the pressure for 1h, the test should be free of leakage, the test pressure drop should not exceed 0.06Mpa;
e. Under the condition of 1.15 times of design working pressure, the pressure is reduced for 2h, the pressure drop should not exceed 0.03Mpa, and no leakage is found at the same time. The
pe pipe testing machine is qualified.
4. Pipes directly buried in the floor and wall, the pressure test must be carried out before the surface layer is poured or sealed. After the pressure test requirements are met, the civil works can continue construction. The pressure test can be carried out on branch pipes or on separate floors, but must pass.
It should be noted that when the system strength is pressed, water equipment, such as water nozzles, float ball valves, etc., are not included. These joints with metal inserts during pressure test can be temporarily sealed with pressure-resistant plastic plugs. Also pay attention to the loading and unloading, do not use too much force, so as not to damage the threaded fittings, causing leakage at the joint. In the rigorous test, all water equipment such as water nozzles should be installed to check the reliability of the entire system.
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