Any Chevy engine, if it's well-modified or just slightly warmed-over, requires a good set of valve seals. Originally, a small rubber O-ring, fitted in the second valve stem groove, served as the only ...
See if any of these scenarios sound familiar: Every morning when you start your car, a small cloud of blue smoke erupts from the tailpipe. Or, even though your engine doesn't leak oil and apparently ...
Materials used in the seals of split butterfly valves for aseptic pharmaceutical manufacturing should be chosen carefully. Split butterfly valves (SBVs) minimize the amount of airborne particle ...
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