 Metal Mandrel Pigs |
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 Urethane Foam Pigs |
 Spheres |
 Custom Design Pigs |
 Cups and Discs |
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Urethane Foam
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Knapp is the originator of the Polly Pig, urethane foam pipeline cleaner.
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Knapp's patented Ultra-Seal Pig is the best sealing pig on the market. |
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Knapp's patented Ultra-Seal Lite Pig is highly acclaimed for its' sealing abilty in multi-dimensional pipelines.
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Custom Foam Pigs Knapp manufactures custom-designed urethane foam pigs for specific applications where dimensions and design of ordinary pigs just won't work. |
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Polly Disc Pig Originally known as the "Polly Sheep Pig" after its' resemblance to a Sheep's foot roller, Knapp has manufactured the foam-bodied Polly Disc Pig since 1988. |
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Foam Sphere Pigs Knapp manufatures a complete line of urethane foam spheres from bare foam spheres of various densities to those coated with urethane elastomer or silicone carbide chips. |
Knapp Polly Pig,Inc.
1209 Hardy Street
Houston, TX 77020
713 222-0146
800 231-7205