1998 ITT Bell & Gossett Stainless Steel SU-Series Shell and Tube Heat Exchanger. Model no. SU106-2. Total surface area of heat transfer: 86 sq. ft. Designated as a “2” pass unit. Materials of construction: 316 stainless steel head, 304 stainless steel tubes, tube sheet and shell. Shell side: MAWP: 150 psi at 375 ˚F, MDMT: -20 ˚F at 150 psi. Tube side: MAWP: 150 psi at 375 ˚F, MDMT: -20 ˚F at 150 psi. (3) Psi gauges. Unit has an Apex 5000 modular positioning system indicator, Mecair actuator and a Durco valve. ITT Steam trap. Model no. FT125C. Inlets/Outlets: (2) 1-3/4 in. FNPT flange dia. with (4) 5/8 in. mounting hole dia. 2-5/8 in. adjacent, 3-7/8 in. opposite. (2) 3 in. S-line. (1) 2 in. S-line. (1) ¾ in. FNPT. (1) ½ in. MNPT. Overall dimensions: 9 ft. 2 in. L. x 2 ft. 5-1/4 in. W. x 6 ft. 6-1/2 in. H.(ACN176).