Types of Pipeline Pigs: Foam, Cast-Urethane, Steel Body, Spheres, Gauge Pigs, Solubles Enduro Pipeline Services. Pipeline Pig Brands: Girard Industries, Knapp Polly Pig, Maloney Technical Products, S.U.N. Engineering, T.D. Williamson.
Pipeline pigs perform maintenance operations inside of pipelines, without stopping the flow within the product pipeline in a multitude of industries and applications. These devices are available in a variety of sizes and configurations and offer an economical solution to many manufacturing requirements, including batching, cleaning, dewatering, and drying. Drinkwater Products carries a full range of pipeline pigs and will help you decide which one is right for your job.
WCK Pigs come equipped with tempered steel wire brushes and urethane cups. The dual diameter WCK Pigs for cleaning multiple sizes of pipe are equipped with steel wire brushes and discs. An outlet port at the front end of the WCK Pigs provides fluid bypass to prevent piling of loosened material.
VANTAGE® V Cleaning Pigs are multi-use pigs equipped with either scraper discs/cups, cups, brushes or blade cleaning elements. The VANTAGE® V is offered in eight different cleaning configurations. All cups and discs are replaceable and can be interchanged or reconfigured.
Soluble pigs are solid sphere shaped balls or cylinder shaped plugs. Oil soluble pigs contain micro-crystalline wax, paraffin inhibitor and pour point depressant. Water soluble pigs contain a water-soluble surfactant and corrosion inhibitor.
Soluble pigs are used to clean out paraffin deposits and other unwanted accumulations inside of pipes.
Soluble pigs (oil-soluble type) contain paraffin inhibitor and pour point depressant. The residual traces of inhibitor help prevent re-deposition of paraffin for a short period of time. The pour point depressant helps the oil that contacts the pig flow easier at lower temperatures.
Soluble pigs can be used in any length lines and are very inexpensive as compared to other pipeline pigs. Pigs do not interfere with other production and pipeline chemicals.
The dissolving rate of pigs is a function of fluid temperature, relative fluid movement, friction, and absorb ability of the crude. These conditions vary greatly with each system. The melting point for our standard pig is about 145F. Special-order melt point pigs range from 125F to 180F. All pigs will dissolve in fluids with temperatures below their melting point (just at a slower rate). Some fluid movement past the pig is necessary to dissolve the pigs if the fluid temperature is below the pig’s melting point.
The number of pigs to be used is based on the amount of accumulation, length of pipe, temperature of fluid and other factors. Regular periodic pigging is recommended to keep lines clean and prevent paraffin from becoming too hard or thick to remove.￼