The Zurcon DA24 venting version double-acting scraper from Trelleborg Sealing Solutions incorporates pressure relief valves to prevent system failure and is suitable for severe operating conditions in fluid power applications, particularly in environments with a high level of external contamination and dirt. Axial holes operate as pressure relief valves during buildup behind the scraper and allow oil to be released to prevent the scraper from being pushed out of the groove, causing total sealing system failure. Benefits include improved scraping performance; protection against ingress of dirt, external media, and moisture; efficient sealing behavior; advanced friction characteristics; limited heat generation; and extended service life.
