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

Solid Cast Pipeline Pigs

Alll Pigs Logo

Solid Cast Urethane
Pipeline Utility Pigs

K-Disc Pig

K-Disc® Pig

Knapp's patented single-piece, bi-directional scraping pipeline pig.  The K-Disc is unmatched for paraffin scraping ability.

Ultra-Cast Pig


Solid cast urethane combination cup and disc scraping pipeline pig.

Nova Pig System

Nova System Pig

Knapp's solid cast urethane pipeline pig with replaceable wear parts.


Nova-Cast Group

Nova-Cast® Pig

Knapp's patented one-piece, solid cast urethane pipeline pig designed for pipeline-specific applications.

Ultra-Flex pipeline pig

Ultra-Flex® Pig

Solid cast urethane cup and disc fluid control pipeline pig.


Solid Cast Urethane Disc Pig

Knapp, the original manufacturer of the solid cast urethane disc pig, has been producing this dependable line of bi-directional solid cast pipeline pigs for more than 25 years.

Three cup pipeline pig

Polly Tri-Cup® Pig

Knapp's solid cast urethane three-cup batching, cleaning and fluid control pipeline pig.

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

home | products | index |  e-mail