Get current pricing for Carbone, Carbone 63 Sq. Ft. B 62.5 Sq. Ft Vertical Graphite Cylindrical Block Heat Exchanger. Mfd By Carbone, Type Pbc8dl-5pu-1-6, Serial # 11153, Built 1998. Shell Rated 185 Psi @ . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: