Flange raised face thickness 1/16″
Large bore piping divided to 3 types
a- standard schedule(thickness 4.75mm to 9.53mm)
b- high schedule(thickness 9.54mm to 19mm)
c- critical schedule(thickness more than 19mm)
Each type different in the shape of welding groove
Bolted joints used in these cases components can’t be service inline, not capable of being welded, quick field assembly required, frequently remove component for
service or low cost & time save
The primary ASME standards for piping dimensions are:
- ASME B36.10M: For wrought steel pipe.
- ASME B36.19M: For stainless steel pipe.
- ASME B16.5: For flanges and flanged fittings.
- ASME B16.9: For butt-welding fittings.
- ASME B16.11: For forged fittings.
- ASME B16.25: For butt-welding ends.
- ASME B16.34: For valves.
- ASME B1.20.1 Pipe thread dimensions