High pressure pipeline plugging is a necessary technical means to maintain the stability of the pipeline and prevent the occurrence of sudden accidents. There are several traditional high-pressure pipeline sealing methods, including mechanical forced sealing, hydraulic leakage sealing, polymer sealing, advanced polymer sealing, pneumatic sealing and grouting sealing, etc., will be introduced one by one below.

First, mechanical forced plugging method

Mechanical forced plugging method refers to the method of using forced pressure to expand the pipe and plug the gap between the pipe wall and the medium. Commonly used tools are extrusion belt and flaring hammer, the advantage of this method is simple and easy, does not require too much equipment, but the disadvantage is that improper use is easy to damage the pipeline.

Two, hydraulic leakage sealing

Hydraulic leakage sealing refers to the method of using high pressure pump to send the sealing hydraulic pump to the leak point and realize rapid leakage plugging. This method has high speed and good effect, and is suitable for some serious leakage situations.

Third, polymer plugging

Polymer plugging refers to the method of using transparent viscous materials to form a protective thin shell at the leak site to slow down the leak or stop the leak. Two materials are commonly used: epoxy resins, which are often used for larger holes, and SM two-component polymers, which are suitable for the sealing of small holes.

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Fourth, advanced polymer plugging

Advanced polymer plugging is to inject a diffusible polymer material into the leak, and with the increase of temperature, the material hardens, and gradually diffuses with the operation of the pipeline to achieve the effect of slowing down the leak and even blocking.

Five, pneumatic sealing

By spraying high-speed air flow to the leakage site, high-speed air thrust is formed to force the leak downward and cause support. Then adjust the Angle of the air port, and use the pressure of air flow to block the drilling site, so that the leak site can achieve the temporary sealing effect.

Six, grouting sealing method

Grouting sealing method refers to the use of grouting machine to inject glue with pressure and seepage into the leakage part of the pipeline, and the glue gradually diffuses and forms a certain pressure with the operation of the pipeline, so as to achieve the effect of slowing down the leakage or sealing. This method is suitable for the case of small pipeline and light leakage.

The above are six methods of high-pressure pipeline sealing, of which mechanical forced sealing, hydraulic leakage sealing, polymer sealing, advanced polymer sealing and grouting sealing are more common. Before selecting the plugging method, it is necessary to comprehensively consider the specific leakage situation, pipeline location and environment, and select the appropriate plugging method. When plugging pipelines, perform this operation with caution to ensure personal and property stability.

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Get more knowledge about What to Look for When Choosing an hot tapping machine Manufacturer please refer to aoguang sandwich valve：https://www.pipelinehottapping.com