Dear All,
We have received a order for Waste Heat Recovery Boiler (Fire Tube Construction ) wherein there is a
common shell side which encompasses of three different tube side's.
Meaning the Shell Side and the Tube Sheet is common and there are three different welded tube bundles
carrying flue gases from three different process.Two of which carry pressurized flue gases.

Our Customer wants only two of the Tube Sides which are pressurized as per 'U' Stamp.
Rest of the Boiler can follow local regulations (Indian Boiler Regulations).

Can we execute such a Boiler (part of the Boiler ) under ASME 'U' Stamp.
Please advise.