ASME forms for Air Cooled Heat Exchangers

[Mech8888]

Hi,

Just one quick question. When manufacturing an Air Cooled Heat Exchanger (inlet header, outlet header, finned tube bank cooled by air) should I be completing an ASME U-1A or ASME U-1 form?

Getting different answers from different people and would like to resolve it before we complete fabrication.

Thank you

Brian

 

[Duwe6]

U-1 is all-encompassing. U-1A is the 'short form' for simple vessels. If both of my box headers were the same size, and the tubesheet and plugsheet were the same thickness, I would use the U-1A. Simplified form for a simple piece of engineering.

however, YMMV & 'ask your Authorized Indpector'.