- General Purpose Poly Pigs
Highest quality poly pigs for flexible applications -- with over 40 years of trust.
Since its foundation, Nippon Pipeline Service (NPS) has conducted a variety of pipeline pigging projects using poly pigs, manufactured by Knapp Polly Pig Inc. We have complete confidence in Polly Pigs because
(1) Wide variety of pigging technologies around the world has been fed back to the Knapp Polly-Pigs and NPS can utilize such feedback as our knowledge bank.
(2) It can be applied not only to the Japanese local codes but also to international engineering codes and standards including ASME and ANSI.
The Polly Pigs we provide with are all proven with our half-century experience of pipeline pigging projects. We recommend them with confidence that they will meet your needs with maximum flexibility.
Bare Soft Light density urethane foam pigs with great absorbency |
・ Dehydration, drying ・ Penetration check of existing pipelines |
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Bare hard Hard density foam pigs without resin coating, providing better sealing capability. |
・ Flushing SUS pipeline ・ Water and liquid removal ・ Water filling for hydrostatic testing ・ Cleaning of existing PCV pipes |
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Criss Cross Polly Pig A bare hard urethane foam body with urethane elastomer coating, offering high cleaning effect |
・ Pre-commission flushing ・ Cleaning of existing pipelines |
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A Javelina has wire brush around the body to give maximum scrubbing effect. | ・ Pre-commission flushing ・ Cleaning of existing pipelines |
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Bare hard Javelina Bare hard Javelinas have improved sealing, which allows them go through T-shaped pipes more easily and runs with less air pressure than conventional Javelinas. |
・ Pre-commission flushing ・ Cleaning of existing pipelines |
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STUD Cleaner Polly Pig Higher density urethane foam pigs with hardened-steel scraping studs |
・ Cleaning of existing pipelines (scrubs scales including iron oxide and calcium deposits. | |
Poly foam disc pigs These urethane foam pigs are integrally molded to form the body into multiple discs to innovatively improve the sealing at the bend parts of pipelines compared to conventional shell type pigs. |
・ Removal of debris including loosen rust from the pipeline walls during flushing ・ Dehydration, liquid introduction |
(1) Transmitter cavities
The pigs can be equipped with pig locator transmitters
*Pig tracking *Passage detection
(2) Rope/steel cable
These pigs have polypropylene ropes or steel cables through the body.
(All Polly Pigs larger than 16B are originally equipped with polypropylene rope)
The ropes or cables may be used to pull specialized brushes and/or draw in the wiring cables.
(3) Double nose
Pigs can be formed for bidirectional applications
(4) Custom pig size
Custom sized pigs for various pipe diameters are available upon request
Totally Coated The pigs have high chemical resistance |
Super Javelina High cleaning capacity |
Black belts Effective removal of viscous deposits |
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K-20 Specially developed for decoking purpose, with high polishing capability |
Ultra Seal | Hand Launch |
PL CUP |
BD-6K | Foam sphere pigs |
*Contact us for details
The pig's locations can be monitored during the cleaning operation with a transmitter inserted in the pig.