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Process Pipeline Test Pressure, Purging and Cleaning Scheme
Latest company news about Process Pipeline Test Pressure, Purging and Cleaning Scheme

 

1.Conditions and Preparations for Testing Pressur
1.1 The construction of the pipeline system is completed, and it meets the design requirements and specifications.
1.2 The welding work is completed after the mixing rack and the pipe rack are installed. The ray detection has fully reached the design specifications and passed the inspection. The welds and other inspection areas that should be tested are not painted and insulated.
1.3 The test pressure gauge has been verified, and the accuracy is 1.5 levels. The full -scale value of the table should be 1.5 to 2 times the measured to the maximum pressure.
1.4 Before the test, you cannot participate in the test system, equipment and accessories, and add a white paint label with a white paint label with a blind plate.
1.5 Water should be used for cleaning water, and the content of chloride in the water must not exceed 25 × 10-6 (25ppm).
1.6 Temporary pipeline reinforcement for tests should be confirmed and reliable after inspection.
1.7 Check whether all valves on the pipeline are open, whether the pads are added, and stop the valve core of the valve core, and then reset until it is blown.

 

2.Process Pipeline Test Pressure Process

2.1. Pipeline test pressure is 1.5 times the design pressure.
2.2. When the pipeline and equipment are tested as a system, the test pressure of the pipeline is equal to or less than the test pressure of the device. Essence
2.3. When water injection of the system, the air should be exhausted. The air emission point should be at the highest point of the pipeline and add the exhaust valve.
2.4. Pipelines with large positions should be measured into the test pressure of the test medium. The test pressure of the liquid pipeline should be subject to the highest point pressure, but the lowest point of the minimum point must not exceed the tolerance of the pipeline composition.
2.5. When test pressure, the boost should be performed slowly. After the test pressure is reached, the pressure pressure should be 10 minutes. With no leakage, no deformatio

Pub Time : 2022-04-29 16:01:54 >> News list
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