MSS SP - 97 2012 Integrally Reinforced Forged Branch Outlet Fittings – Socket Welding, Threaded, and Buttwelding Ends

MSS SP - 97 2012 Integrally Reinforced Forged  Branch Outlet Fittings –  Socket Welding, Threaded, and Buttwelding Ends

MSS SP - 97 Practice covers essential  dimensions, finish, tolerances, testing,  marking, material, and minimum strength  requirements for 90 and 45 degree integrally  reinforced forged branch outlet fittings of  buttwelding, socket welding, and threaded  types. 

1.2 Fittings manufactured to this Standard  Practice are designed to make a fully  reinforced branch connection in accordance  with applicable piping code requirements,  when attached, at an opening in a run pipe by  means of a full penetration weld. 

1.3 Fittings may be made to special  dimensions, size, shape, tolerances, or of other  wrought material by agreement between the  manufacturer and the purchaser. 

1.4 Standard Units Tables 2 through 7  show the fitting’s dimensional requirements in  customary units or inches (decimal). Tables  A2 through A7 show the fitting’s dimensional  requirements in SI (metric) units (e.g.,  millimeters). The values stated in either  customary or SI (metric) units are to be  regarded separately as the Standard. Within  the body text, the SI (metric) units are shown  in parenthesis. Combining values from the two  systems may result in non-conformance with  the Standard Practice. The values stated in  each option are not exact equivalents;  therefore, each measurement system must be  used independently of the other.