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-Seal Pigs

Alll Pigs Logo

Pipeline Utility Pigs

Knapp’s patented Ultra-Seal Pig is designed for demanding applications where only minimal product by-pass can be tolerated, the Ultra-Seal delivers as promised with the lowest measurable by-pass in the pigging industry. The Ultra-Seal Pig is available in numerous configurations to meet specific pipeline conditions.

Ultra-Seal Pig

Standard Ultra-Seal Pig

The standard Ultra-Seal Pig has flat, polyurethane elastomer discs on each end. This is the optimum design for dewatering, batching of dissimilar products, and for fluid removal in pipelines of all sizes and pipe materials.
Ultra-Seal Pig EZ-Launch Nose

Ultra-Seal Pig with EZ-Launch Nose

The Ultra-Seal Pig with EZ-Launch Nose is designed for use in pipelines with vertical launchers or changes in pipe diameter due to varying wall thicknesses


Ultra-Seal Bumper Nose Pig

Ultra-Seal Options

Pig Tracking: Adapters: Ultra-Seal Pigs are available with optional pig-tracking transmitter adapters to accommodate acoustic "pingers", electromagnetic transmitters, high-strength magnets and nuclear tracking sources.
By-Pass Ports: Ports running the length of the body.
Handling straps: Nylon handling straps or ropes embedded in the body of the pig.


40" Ultra-Seal Pipeline Pigs
The Ultra-Seal Pig is patented. U.S. Patent No. 5,895,619.
Ultra-Seal, K-Lite and K-Duro are registered trademarks of Knapp Polly Pig, Inc.

**Please Note that it is very important to provide the actual inside diameter of the pipeline when ordering a Knapp Ultra-Seal Pig.
K-Duro Pipeline Pig Foam
*K-Duro is Knapp's exclusive heavy-density urethane foam. K-Duro is an open-cell, 8-10 pound per cubic foot density, urethane foam designed for more strength, longer distance, and heavier service than K-Lite foam
K-Lite Pipeline Pig Foam
*K-Lite is Knapp's exclusive medium denstiy urethane foam. K-Lite is a proprietary, open-cell, 5-8 pounds per cubic foot density, urethane foam designed specifically for use in pipelines. K-Lite foam has a high tear strength and medium stiffness, it is more flexible than Knapp's K-Duro foam.
Pipeline Cleaning Pigs
Knapp Polly Pig,Inc.
1209 Hardy Street
Houston, TX 77020
713 222-0146
800 231-7205

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