A Great Southern Press Site
Username:   Password: Forgot Password?

« Back to Resource Centre

Jump To:

Pigging Products

A pipeline inspection gauge – or ‘pig’ – is a tool that is used to assist in maintaining pipeline integrity. Pigging is the process of running a pig through an in-service pipeline using the flow of product, and can be undertaken for a number of different reasons.

Cleaning pigs are used to clean the internal surface of the pipeline. Over the lifetime of a pipeline, deposits can build up inside the pipeline, resulting in reduced throughput or blockages. Regular pigging with a cleaning pig can remove these and improve operation. Attachments such as brushes and scrapers can be added to improve its cleaning performance.

‘Intelligent’ or ‘smart’ pigs are used to inspect pipelines for defects, collecting data during their run and providing information to technicians and engineers about the pipeline’s condition. Geometry (or caliper) pigs can also be used for this purpose, determining whether the pipeline has any dents, bends or even if it is corroded via internal surface measurements.

Other functions for pigs include product separation, pipeline dewatering and drying, condensate removal and plugging.

Some pipelines are considered to be ‘unpiggable’, which means they cannot be inspected by conventional intelligent pigs. This could be due to a number of reasons, including multiple pipeline diameters, valve restrictions or sharp radius bends. Over the years, innovative technology and techniques have been developed to counter this problem, with a range of products now available to inspect even the most difficult pipelines.

More Less

Latest News

Registrations open for ISTT No-Dig 2013

The ISTT and Australasian Society for Trenchless Technology invite you to register early and save for the 31st ISTT Conference and Exhibition, to be held in Sydney from 1-4 September 2013.
Meet the partners of ISTT No-Dig 2013

Trenchless Australasia introduces you to the ev...

North African infrastructure key-players set to attend INA 2013

All infrastructure-related authorities, ministr...


Magazine article

Trenchless Live an industry success

In Melbourne, Australia, from 22–24 Octo…

State of the industry: United States

In 2009, Trenchless International spoke to…

Related Companies

Zevs Technologies
Istra, Moskow region, Russian Federation
RJS Associates Limited
SHATIN, Hong Kong

Related Events

International No-Dig Istanbul 2015

WOW Istanbul Convention Center, Turkey

China Trenchless Conference & Exhibition

Qingdao International Convention Exhibition Center.

Basket is empty.

Advertisement Advertisement