Get current pricing for Celanese, 100 Sq. Ft. Celanese 100 Sq. Ft. Ss Horizontal Shell & Tube Heat Exchanger. Cs Shell Rated 1705 Psi @ 400 Deg F. 304/316-ss Tubes Rated 170 Psi @ 400 Deg F. 316-ss He . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: