Regarding Branch connection PWHT check ASME B 31.3
..331.1.3 (a) and 328.5.4 d for branch connecton sketches also refer
below article from B 31.3
Regards
Mano
In the case of branch connections, metal (other
than weld metal) added as reinforcement, whether an
integral part of a branch fitting or attached as a reinforcing
pad or saddle, shall not be considered in determining
heat treatment requirements. Heat treatment is required,
however, when the thickness through the weld in any
plane through the branch is greater than twice the minimum
material thickness requiring heat treatment, (38 mm)
2011/10/26, Mohamed Khaleel <smohdkhaleel@gmail.com>:
> Run pipe to banch connection through weldolet fitting used. i need to
> know what is the joint thicknes considered for selection of WPS. For
> Ex. thickness at 6" run pipe to 2" weldolet branch.
>
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