Maloney® scraper cups and discs are compression-molded at cavity pressures exceeding 2000 PSI, yielding a wear-life unmatched in the industry. The scraper cup design allows pipeline pressure to seat the sealing surface against the pipe with sufficient force to create a positive seal without excessive wear. The blunt edge allows the full depth of the lip to wear and provide full usable area throughout its life. Scraper discs are designed for bi-directional pigging applications. Over 50 years of proven field reliability.