Used 20 Square Feet Pfaudler Hastelloy Horizontal Heat Exchanger. Shell rated 150 psi and full vacuum @ 450 F, tubes rated 150 psi @ 450 F. Type BEM 06-48. 71 1/2” OAL. (27) ¾” tubes, 0.065” thick, (Hastelloy SB-626 AI C-276). (2) 1 1/2” inlet/outlet, (2) 3/4” vent/drain, (2) 3” inlet/outlet. Serial #J022724, National Board #49468, Built 1998. Weight – 265 lbs. Previous Use: API Pilot Plant.