Used vertical 318 Sq Ft Shell & Tube Heat Exchanger. CS Shell rated 515 PSI @ 550 deg F. CS Tubes rated 25 & 15 ext @ 370 deg F. 28.25" Shell x 6' L. (OAL - 8' 9"). (337) 1" OD Tubes x 6' L. Nozzles: Shell - 4" inlet, 3" outlet; Tubes - 8" inlet, 20" outlet. 1 Pass Shell, 1 Pass Tubes. Built by Energy Exchanger, 1981. S/N: X-1253, NB# 390. Weight: 8000 lbs. Previous Use: Drying Column Reboiler.