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The primary seal, often made of polyurethane, rubber, or PTFE (Teflon), prevents fluid from leaking past the piston. The secondary seal, typically an O-ring, provides additional security against fluid bypass. Wear rings, usually made of hard materials like bronze or steel, reduce friction and prevent scoring of the cylinder wall. Scraper seals help remove any contamination or debris that may have entered the system Scraper seals help remove any contamination or debris that may have entered the system
Scraper seals help remove any contamination or debris that may have entered the system Scraper seals help remove any contamination or debris that may have entered the system
hydraulic piston seal kit.


Seal replacement is a delicate process. New seals must fit precisely, with proper installation techniques to prevent damage during insertion. Incorrect installation can lead to premature failure, so following manufacturer guidelines is vital. For instance, rod seals often require a specific orientation, while piston seals may need lubrication before installation For instance, rod seals often require a specific orientation, while piston seals may need lubrication before installation
For instance, rod seals often require a specific orientation, while piston seals may need lubrication before installation For instance, rod seals often require a specific orientation, while piston seals may need lubrication before installation
hydraulic cylinder seal repair.

