The valves operate in low-temperature cryogenic conditions and to 1,000°F. They feature a patented seat made from self-lubricated, full-contact sintered stainless steel that contains TFE or graphite.

Federal-Mogul’s “lean tool steel” contains a higher proportion of chromium than standard tool steels, cost-effectively adding carbides that create a multiple-phase composite microstructure. Valve seat ...

The VGS-20 has gained popularity in motorcycle and automotive engine head work. Valve guide and seat machining systems once were dominant only in aftermarket stock engine-rebuild shops. However, today ...