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The pig is a special tool for cleaning pipelines driven by gas, liquid or pipeline transport medium. It can carry electromagnetic launching devices and ground receiving instruments together to form an electronic tracking system. It can also be equipped with other supporting accessories to complete various complex pipeline tasks.

Pig

1. Natural gas pipelines in operation: remove water, light oil,

Generally there are rubber pigs and leather bowls

In the pipeline to be operated, the corresponding series of pigs are placed according to the requirements of the operation. The outer edge of the pig's leather bowl is elastically sealed with the inner wall of the pipe, and the pressure difference generated by the pipe transport medium is used as the power to push the pig to run along the pipe. Relying on the scraping and scouring action of the pig itself or the machine with it to remove the scale or deposits in the pipeline.