Source: Knapp Polly Pig, Inc.
The patented Blackbelt pig is designed for superior scraping that wont harm plastic pipe walls. Sturdy straps of Ultra-Thane topped with rows of hard, raised urethane scrapers combine to produce a safe and effective pig for removal of flow-choking deposits in pipelines. The raised scraping surface conforms to the curve of the pipe interior wall to help attain maximum scraping ability. The scraping surfaces are available in various formulations and degrees of hardness to meet the requirements of the job.
Knapp Polly Pig, Inc., 1209 Hardy St., Houston, TX 77020. Tel: 713-222-0146; Fax: 713-222-7403.