Dear Sir,

I am clear in most of the concepts regarding soak band width and HAZ reference to UW 40(a).

However to just finalize things, i have attached my exchanger drawing and its particular part for final decision.

Please comment and help me satisfying my heat exchanger design so that i can be confident before its fabrication (as you all are of great help).

Thank you in advance to take part in my this design issue and fabrication drawings.

Aslo I will be grateful if you could comment how one can calculate HAZ region during heat exchanger design phase (i.e. before and after the welds)

http://www.filefactory.com/file/age1984/n/UW-40_a_bmp
http://www.filefactory.com/file/age198h ... or_not_doc

Best regards
Osama

_________________
Syed Osama Nusrat Ali
Exective Engineering (Project)
Fauji Fertilizer Company Limited
Pakistan
email: osama_ali@ffc.com.pk
Cell # +92-3025252018