Part end edging

Optional edge preparation patterns of the parts that have the outside diameter equal to that of joined piping

a – part joint dimension;
В – edge height;
с – root face width;
S – wall thickness;
Sтр – pipe thickness;
Sп – cylindrical and special cut wall thickness;
Dтр – joined pipe diameter;
Dн – part outside diameter;
Dп – part joint diameter.

Optional edge preparation patterns of the parts that have the outside diameter larger than that of joined piping

a – part joint dimension;
В – edge height;
с – root face width;
S – wall thickness;
Sп – cylindrical and special cut wall thickness;
So – residual thickness less addition to enlarged diameter;
Sтр – pipe thickness;
Dтр – joined pipe diameter;
Dн – outside part diameter;
Dп – part joint diameter.