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Alternatives to Traditional Hygienic Pipeline Pigging

Alternatives to Traditional Hygienic Pipeline Pigging
01/08/2019

How Pigging Has Developed Over the Years Pigging (also referred to as liquid product recovery) is a well-established technology. It was originally developed for cleaning large diameter pipelines in the oil and gas industry.

HPS pigging system food and beverage plant Traditional Pipeline Pigging System

Over time, the technology has advanced from basic equipment used to clean oil pipes to advanced, fully automated pigging systems widely used today for recovering product from smaller scale pipelines.

Although pigging is still very much used in the oil and gas industry, the technology is now split into two branches: pigging systems for the process industries such as food, beverages, paint, cosmetics, personal care or household products, and those in the utility industries such as oil, water, waste and sometimes gas.

From honey, soft drinks, sauces, wines, and cosmetics to pet food, shampoo, paints, and household cleaners, the basic purpose of pigging used in process industries is to recover or remove residual liquid that remains in process system pipelines after liquid has been transferred from one location to another.

Although pigging is in wide use in the process industries (with its use increasing), there are still alternative technologies out there. This blog article looks at some of the alternatives to pigging in process and hygienic applications, including air pigging, ice pigging, washing flushing, air purging plus more. It also looks at how traditional hygienic pipeline pigging compares to the alternatives.

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