Materail : FKM/VITON
Rotational speed:below 10000rpm
Valve stem seal is a kind of oil seal, which is generally formed by vulcanizing outer frame and fluororubber together. Self-tightening spring or steel wire is installed at the radial opening of the oil seal for sealing engine valve guide rod. The valve oil seal can prevent oil from entering the intake and exhaust pipes, causing oil loss, preventing the gas mixture of gasoline ...