2" inlet and outlets. Stainless steel. Appears to be a 3 stage steam jet system with shell and tube intercondenser. Ametek - Schutte and Koerting job number – m74-21871-j. 2-1/2 thb.
12.7 square feet of heat transfer area. 316 stainelss steel, both sides. Manufactured by api Basco. 3/8" tubes. Model aht 316 stainless steel heat exchanger. 200 PSI pressure rating on tube side; 240 PSI shell side pressure rating. Design temperature is 375 f. Nameplate is missing. Exchanger length not counting end fittings is 30". Exchanger is unused but was designed to be a small vertical condenser with the bottom bonnet being designed for condensables and non condensables. Vapors were to be condensed in the tube side.