PIGS UNLIMITED
Pigs Unlimited International, Inc. manufacture all styles of pigs (foam, steel and solid-cast) as well as spare components (cups, discs, brushes).
Since their conception, pigs have been cleaning pipelines in the oil and gas industry for well over one hundred years. Now, pigs have branched into other industries, such as municipalities, power plants, mining, refineries, chemical plants, pulp and paper mills, food and beverage, cosmetic and pharmaceutical. Also, over the years pigs have evolved from basic “plugs” to being fairly sophisticated pipeline cleaning devices. Standard sizes range from 2″ to 48” (but larger sizes can easily be designed and manufactured), and they can be manufactured in varying lengths, diameters, styles and configurations to best suit the customer’s application.
Of the many pigs we offer, our line of foam pigs, with sizes ranging from 2″ to 48″, are available in standard designs of bare swabs, criss-cross, wirebrush, silicon carbide, plastic bristle and total-wire designs. Our foam mixing and pouring machines allow us to offer standard two-pound, five-pound and eight-pound densities, as well as, special densities for unique applications. Our abrasive series of foam pigs for cleaning applications, include standard carbon steel wire, stainless steel wire, silicon carbide (in loose grit or bonded strap), and plastic bristle for internally coated lines and various plastic pipe types (PVC, fibreglass, HDPE).
Our line of solid-cast pigs include cup-type, disc-type, combination cup-and-disc type, as well as, modular pigs with all individual components of the pig being manufactured from polyurethane. All styles of our utility solid-cast pigs are able to accommodate brushes for cleaning applications and transmitters for tracking applications.
As for steel-mandrel pigs, we manufacture sizes ranging from 2″ to 48″ nominal pipe diameters with configurations including, but not limited to, two-cup, four-cup, two-disc, four-disc, conical-cup, multi-disc, articulated pigs, and pigs with wire brushes or paraffin-removal blades. These pigs can also be equipped with gauging plates, magnets for ferrous debris pickup, and transmitter cavities, along with special designs for unique applications.
Complementing our line of steel pigs, Pigs Unlimited International, Inc. is the only full-line pig manufacturer that builds replacement pig brushes in-house. These include carbon steel, stainless steel, and prostran for internally coated lines and plastic pipes. Various design types are wire-wheel, circular-hub, wrap-around, and spring-loaded. Replacement brushes can be manufactured for use with our steel pigs or for other manufacturer’s pigs.
As a standard, our field-proven cups, discs and other polyurethane spare components are manufactured to an 80 Shore A durometer. However, varying durometers can be supplied for other specific customer applications. In addition to our standard polyurethane, other compounds for spare-component construction include neoprene, epdm, buna-n, hypalon and viton for extreme high-temperature and low-temperature applications, or for special chemical-resistant requirements.