A precision miniature spring keeps the sharp-edged elastomer lip in continuous contact with the valve stem, tolerating high-frequency motion while automatically compensating for wear. The miniature spring and dual-lip structure scrape excess oil without starving lubrication, precisely controlling oil consumption and preventing oil from entering the combustion chamber.

Applications:Gasoline and diesel automotive engines; motorcycle engines

Sealing media:Mineral, semi-synthetic, and fully synthetic engine oils

Lip materials:

NBR (-40°C to 120°C)
FKM (-20°C to 200°C)
ACM/AEM (-30°C to 150°C)

Surface speed:Reciprocating speed: 2–3 m/s