Piping Related Abbreviations (S)

SCH is an abbreviation of SCHedule
and in piping terms this indicates the wall thickness of a pipe fitting or flange.

SMAW is an abbreviation of Shielded Metal Arc Welding
Shielded Metal Arc Welding (Electrode) is a high quality, very high deposition rate welding process.

SMLS is an abbreviation of Seamless
and stands for pipes and fittings.

SMYS is an abbreviation of Specified Minimum Yield Strength
it stands for steel pipes manufactured in accordance with a stated specification. This is a commonly used term in the oil and gas industry for steel pipes under the jurisdiction of the US Department of Transportation.

SOL is an abbreviation of SockOLet
Sockolet® is a socket connection for branches and is a registered name by Bonney Forge Corporation.

SR is an abbreviation of Short Radius Elbow
Elbows are split into two groups which define the distance over which they change direction.

SST is an abbreviation of Stainless STeel

SW is an abbreviation of Socket Weld(ing)
and is a pipe attachment detail in which a pipe is inserted into a recessed area of a valve, fitting or flange.