The closed water test is a very important part in the process of using the pipeline sealing bag. It can detect whether the pipeline sealing bag can achieve the expected sealing effect, and it is also a test for the sealing performance of the pipeline. When conducting closed water tests, professional equipment and methods need to be used and carried out in strict accordance with the operating process.

1. Preparation

Before conducting a closed water test, adequate preparation is required. First of all, it is necessary to clean up the debris and garbage in the pipeline to ensure that the pipeline is clean and smooth. Secondly, it is necessary to check whether the integrity of the pipeline sealing air bag and the inflation pressure meet the requirements. At the same time, you also need to prepare relevant equipment and tools, such as pressure gauges, air pumps, seals, etc.

Operation process

1. Put the pipe sealing air bag into the pipe to be blocked, and ensure that the position and direction of the air bag are correct.

2. Use an air pump to inflate the pipe blocking air bag. Adjust the inflation pressure according to the actual situation. In general, the inflation pressure should be slightly higher than the water pressure inside the pipeline to ensure the sealing effect.

3. In the inflating process, it is necessary to constantly check the air pressure and position of the pipeline sealing bag to ensure that the air bag will not leak or move.

4. When the pipeline sealing bag reaches the predetermined inflation pressure, it needs to stop inflation and seal. In the sealing process, it is necessary to ensure the integrity and fastness of the seal to prevent the occurrence of water leakage.

5. During the closed water test, it is necessary to pay close attention to the situation of the pipeline blocking the air bag, including the air pressure, position, sealing situation, etc. If any exception is detected, handle it in a timely manner to prevent security accidents.

6. After the end of the test, the gas in the pipe sealing bag should be slowly released and the bag should be removed. During the operation, it is necessary to ensure the slow release and removal of the air bag to prevent the sudden gushing of water from causing dangerous situations.