Knapp Pipeline Cleaners

Nova-Cast Pig
Cast Urethane Pigs

Metal Mandrel Pigs
Metal Mandrel Pigs
Blackbelt Pig
Urethane Foam Pigs
Pipeline Spheres
Custom Pipeline Pig
Custom Design Pigs
Pipeline Cups and Discs
Cups and Discs

Pipeline Pig Catalogs

Ultra-Cast pipeline pig

Alll Pigs Logo

Solid Cast Urethane
Pipeline Utility Pigs

Ultra-Cast pipeline pig with brushes

Ultra-Cast® Pig

The ideal combination of scraping and sealing capabilities in one tough, long-lasting pipeline cleaner. 

Ultra-Cast pipeline pig

One-piece design

The Knapp Ultra-Cast Pig is a one-piece design with a sealing cup at the front and rear of the pig and two scraping discs between them.

Ultra-Cast pipeline pig

Seals like a cup pig

A cup shape is the most effective design to allow a pig to run long distances yet maintain a good drive seal.


Ultr-Cast pipeline pig disc

Scrapes like a disc pig

A disc shape is the most effective design to scrape foreign materials off pipe walls. Ultra-Cast discs are thicker at their base to keep the edge of the discs from bending too much.

Ultra-Cast pipeline pig with brush

Ultra-Cast® Options

The Knapp Ultra-Cast pipeline pig is available with circular, wrap-around steel brushes and various tracking options.

Ultra-Cast pipeline pig

Available in Ultrathane®

Knapp’s Ultrathane is a premium grade polyurethane elastomer custom formulated for specific job requirements.

Pipeline Cleaning Pigs
Knapp Polly Pig,Inc.
1209 Hardy Street
Houston, TX 77020
713 222-0146
800 231-7205

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