Get current pricing for Heat Exchanger Design, In, 1,798 Sq. Ft. Al-6XN 1798 Sq Ft Horizontal Alloy Shell & Tube Heat Exchanger. Cs Shell Rated 1090 Psi @ 600 Deg F. Al-6xn Tubes Rated 103 Psi @ 150 Deg. F. Shell: 20 . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: