pipeline transport

Pipeline transport is a transportation of goods through a pipe. Most commonly, liquid and gases are sent, but pneumatic tubes that transport solid capsules using compressed air have also been used.As for gases and liquids, any chemically stable substance can be sent through a pipeline. Therefore sewage, slurry, water, or even beer pipelines exist; but arguably the most important are those transporting oil and natural gas. Often these pipelines are inspected and cleaned using pipeline inspection gauges ("pigs"). Pipeline cleaners are also known as "Go-devils" [1]
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