It appears there is a misconception whereby maintenance of petrochemical plants use ASME B31.3.
However, I know there is a specific ASME standard relating to maintenance of petrochemical plants.
My problem is that I forget what the standard is called.
can anyone help?
I am looking for the dimensions for bolt and nuts for 56" and 72" 150# Wn Flanges.
I am to torque these nuts, and do not know the dimensions
I am unsure of which ASME standards to look at.
Thanks.