Helium leak detection has a variety of pipe shapes, such as threaded pipe openings, flanged pipes, open pipes, Luerian cones, etc. , which is relatively difficult to seal and connect. Poor sealing results in a large number of misjudgments, rework and lengthy leakage detection processes in the process of leakage detection, rework and scrap cause huge losses. Therefore, it is necessary to use better sealed, faster joints to plug pipe fittings and support stable, efficient and accurate detection.

In natural gas pipeline engineering projects, because of the dangers of various factors in the construction site, there are often small holes in the joints of some pipelines that cannot be identified by the naked eye, resulting in leakage and safety accidents in the process of use. In particular, in the field of microelectronics such as semiconductor materials and integrated circuit chips, the leakage of gas pipeline projects, which use special gases to transport high-purity electronic devices, will cause significant damage to the safety of production. Therefore, the use of quick sealing joints for leak detection is critical.

Helium tests are often used for tests with high sealing requirements. When conducting tests, I usually need to place the specimen in a specific container, seal the nozzle of the workpiece, and leave one for ventilation. At this point, it is necessary to use a fast connector with a better seal to ensure that the helium does not leak out of the nozzle connection, thus making the test results more accurate.

After sealing the nozzle, the workpiece is vacuum-drained from a quick joint and helium is injected to the nominal test pressure. The device is installed in a closed container to detect helium, and the leakage rate is determined by the detected helium concentration. The conclusion is drawn by comparing the qualified parameters.