How do piggers work
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How do piggers work? What is the pressure difference before and after?
It is generally driven by air pressure, with a pressure difference of 1 to 2 kilograms
It is generally driven by compressed air; a slightly higher pressure is sufficient. The normal pressure is 0.1~0.6 MPa.
The typical pressure difference is 0.1 MPa; compression by air occurs only in gas pipelines, and the same principle applies to oil transport or other fluids.