Contamination buildup increases resistance to flow, which decreases pipeline efficiency. WCK Cleaning Pigs are used to improve and maintain all types of pipelines by removing contaminants and deposits in the pipe. Dual-diameter (DD) WCK Pigs clean multiple sizes of pipe in one run. Both types have tempered steel springs that force the brushes against the pipe and flex inward to avoid obstructions.
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. For severe deposits, extra bypass holes can be drilled through the cups.
WCK Cleaning Pigs are built with TDW's urethane scraper cups or discs, which are made of liquid-cast urethane, a high-strength, tough elastomer. Advantages of urethane cups and discs include minimum swelling, exceptional resistance to hydrocarbons, lightweight, reduced blistering, and increased abrasion resistance. WCK-DD Pigs are built with a collapsible urethane disk. Both types of pigs are built with TDW steel wire brushes, made from high-carbon, tempered steel. Cups and discs operate in temperatures ranging from -20°F to 200°F (-29°C to 93°C).