(ASME VIII) Pressure Vessels alignment tolerances

[StudB8]

anybody please advice about reference standard for pressure vessels alignment tolerances ..

in most projects i find such tolerances in project specification (1mm/meter length of the vessel with maximum 25mm), but actually i dont
know such tolerances based on which standard..
note: the pressure vessel built according to ASME VIII and will be installed in refinery project in middle east.

anybody help is totally appreciated.

 

[XL83NL]

Double posting is usually not considered appropriate.

In an attempt to answer your question: when your project doenst spell out additionel requirements on top of the design code, and/or jurisdictional requirements, than there are none, except for sound engineering practice and RAGAGEP.
ASME VIII-1 has some tolerances though.