What Is Pipeline Pigging?
Pipeline pigging is a maintenance practice used in the oil & gas, chemical, food processing, and water treatment industries to clean, inspect, and maintain pipelines without interrupting production flow. The term “pig” originally referred to the squealing sound early cleaning devices made as they traveled through pipes.
Types of Pipeline Pigs
Modern pipeline pigs come in several varieties, each designed for specific applications:
- Foam Pigs – Lightweight and flexible, ideal for initial cleaning runs and product separation. Available in bare, coated, and brush configurations.
- Steel Mandrel Pigs – Heavy-duty pigs with replaceable cups and discs for aggressive cleaning and batching operations.
- Smart Pigs – Instrumented pigs equipped with sensors to detect wall thickness, corrosion, and other pipeline defects.
Benefits of Regular Pigging Programs
Implementing a regular pigging schedule delivers measurable results: reduced buildup and blockages, improved flow efficiency, early detection of pipeline defects, and compliance with industry safety regulations. Many of our clients in Illinois report 15-20% improvements in pipeline throughput after establishing a routine pigging program.
Getting Started
Whether you need foam pigs for routine maintenance or a complete pigging system for a new pipeline, Biggy Piggy Inc has the equipment and expertise to help. Contact our team for a consultation on your pipeline maintenance needs.


