Foam Polly Cleaning Pigs for Cleaning, Drying, and Dewatering

By: Girard Industries  09-12-2011
Keywords: Foam, Polyurethane, pig

Girard Polly-Pigs

The Girard Polly-Pig is constructed of open cell polyurethane foam of various densities and is available with various types of external coatings. Although each pig has a specific application, some are interchangeable according to the user's preference within certain parameters.

The Girard Polly-Pig is molded of polyurethane foam material of light, medium, or heavy density. Its bullet shape is designed to aid in traversing fittings and valves. Concave ends are available for bi-directional service. The length of the pig is approximately twice its diameter to reduce the possibility of the pig tumbling in the pipeline. The diameter of the Polly-Pig is larger than the inside diameter of the pipe. This is done to exert a frictional drag between the foam pig and pipe wall. Pigs can be ordered to any custom size requirements.

Polly-Pigs have a concave base plate with a 90A durometer polyurethane coating. This provides a maximum rear sealing surface for the propelling forces of the fluids or gases being used.

Swabs or bare pigs, which have only the bases coated, are normally used in drying or batching operations. Special double-nose or double-dished pigs are used in bi-directional service.

The exterior coatings on the foam bodies consist of criss-cross type spirals of 90A durometer polyurethane. These spirals add strength and give greater wiping and scraping action as compared with bare foam. Girard manufactures two types of criss-cross pigs: the original pattern and the patented "Turning Pattern." Wire brushes, silicon carbide, or plastic bristles can be embedded in these polyurethane spirals to add maximum scraping or brushing action.

Keywords: Foam, pig, Polyurethane, Polyurethane Foam

Contact Girard Industries

Email

Print this page

Other products and services from Girard Industries

09-12-2011

Pig Passage Detectors for Pipeline Cleaning Pigs

Hi-T units are classified in two styles: those models which are not designed for removal while the line is under pressure and those models which are fitted with an integral valve and suitable for controlled removal when the pipeline cannot be de-pressurized.


09-12-2011

Solid and Inflatable Polyurethane Cleaning & Proving Sphere Pigs

Typical Sphere Applications Liquid Batch Separation - Girard spheres are used for separating various products such as gasolines, fuel oils, crude oils, jet fuels, and other petroleum products transported through a pipeline. The pump is easy to operate by placing the appropriate fluid in the filling cup, attaching the hose to the valve body in the sphere, and manually pressing the handle.


09-12-2011

Solid Polyurethane Cup & Disc Turbo Cleaning Pigs

The Girard Turbo Pigs are solid-cast polyurethane pigs available in up to three durometers with multiple configurations of cups, discs or combination of cups & discs for varying pipeline applications. The Girard Turbo Pigs’ one-piece body design preserves its flexibility for negotiating pipeline bends and full-port valves while still maintain a superior seal. The multiple sealing surfaces are excellent for removing liquids from the line.


09-12-2011

Steel Body Mandrel Pigs with Cups, Discs, Brushes, Magnets, Transmitters and Gauging Plates

The ability to add Brushes, Magnets, Gauging Plates and other options to the nearly limitless configurations of the Girard Mandrel Pig make it an excellent choice for pipeline cleaning, batching, gauging, displacement, bi-directional, dual-diameter, hydrostatic testing and removal of paraffin and scale build-up.


09-12-2011

Pipeline Cleaning Pigs and Products for Every Application

Pictured above is Girard Industries own Foam Polly-Pigs, Steel Mandrel Pigs, Polyurethane Spheres, Solid-Cast Turbo Pigs and Spare Urethane Cups & Discs all manufactured by Girard at their plant in Houston, Texas. Girard Has a Pipeline Cleaning Pig For Every Application.