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Pigs
HPS Bi-Directional Pigs

Function

The term "Pigging" refers to the operation of forcing a flexible projectile, called a Pig, through a product transfer pipe. The HPS Pig is forced through the pipe by pressurizing the pipe work behind it with compressed air, Co2, nitrogen, water or even the next product. The liquid residue in the pipe that would normally be flushed to drain, waste treatment or collection areas is instead pushed by the Pig and forced to the destination filler or tank.

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