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

Alll Pigs Logo

Pipeline Utility Pigs

Green K-Disc Pig

Accept no substitutes

To insure unparalleled quality, the patented and proven K-Disc is manufactured exclusively by Knapp Polly Pig in Houston, Texas, USA and Monterrey, Mexico.

Blue K-Disc Pig

All-urethane, single-piece construction

The Knapp K-Disc Pig has no metal parts which could damage the pipewall or costly pipeline ancillary equipment like pumps and compressors. The solid, one-piece polyurethane elastomer construction prevents the pig from coming apart
in the line.

Black K-Disc Pig

Performance oriented discs

Tough line-sized scraping discs located at each end of the pig remove stubborn deposits while the over-sized central discs provide the flexible seal necessary to propel the K-Disc through the pipeline.


Green K-Disc Nose Pig


The K-Disc’s patented design allows the pig to seal and scrape equally regardless of the direction it is moving in the pipeline.

K-Disc Pig with cavity

Designed for on-stream maintenance

The K-Disc pig was designed to be used as an on-stream maintenance tool capable of being propelled by the produced media whether it is a gas or a liquid.

Yellow K-Disc Pig

Available in Ultrathane®

The K-Disc pig is available in many different formulations of Ultrathane, Knapp’s exclusive Ultra Performance Urethane, which are fine-tuned for the job requirements. Ultrathane’s superior elastomeric physicals characteristics in tear and tensile strength provide the ultimate in long wear and scraping ability. Contact the factory for specific Ultrathane formulation recommendations suited for your line.

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

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