The ends of all Butt Weld Fittings are beveled. The shape of the bevel depends on the actual wall thickness. These beveled ends are needed to be able to make a "Butt weld".
ASME B16.25 covers the preparation of butt welding ends of piping components to be joined into a piping system by welding. It includes requirements for welding bevels, for external and internal shaping of heavy-wall components, and for preparation of internal ends (including dimensions and dimensional tolerances). These weld edge preparation requirements are also incorporated into the ASME standards (e.g., B16.9, B16.5, B16.34).
- Welding a fitting to the pipe means it is permanently leak-proof
- The continuous metal structure formed between pipe and fitting adds strength to the system
- Smooth inner surface and gradual directional changes reduce pressure losses and turbulence and minimize the action of corrosion and erosion
- A welded system utilizes minimum space
- A234 WPB: The standard specification for piping fittings of wrought carbon steel and alloy steel for moderate and high temperature
Butt Weld Fittings - Carbon Steel A234 WPB - Approved Import