Used 45 Square Feet Pfaudler Tantalum Horizontal Heat Exchanger. Shell rated 150 psi and full vacuum @ 450 F, tubes rated 150 psi @ 450 F. Type BEM 08-76. 101 3/16” OAL. (37) ¾” tubes, 0.015” thick, (Tantalum 2.5% w). (2) 4” inlet/outlet, (2) 2” inlet/outlet, (2) 1” vent/drain. Serial #J040814, National Board #50301, Built 2000. Weight – 530 lbs. Previous Use: API Pilot Plant.