Used 675 Square Ft Phoenix Metallurgical Co. Titanium Shell & Tube Heat Exchanger. Stainless Steel (SA-240-317L) Shell rated 100 psi / FV at 175 deg F, Tubes rated 230 psi / FV at 100 deg F. (178) Titanium (SB-338-2) tubes x 3/4" x 0.035" ODX x 20' LG with tube pitch 15/16". Shell is 19' 8 3/4" LG x 16" OD, OAL 23' 5 1/4". (8) Nozzles. Serial # 211, National Board #29, Year Built 1994.