2001 Secespol Shell and Coil Vertical Heat Exchanger. Model: JAD XK 12.114.12. Heat transfer area: 113 sq. ft. MAWP of both shell and tubes: 250 psig @ 406ºF. MDTMT of both shell and tubes : -155ºF @ 250 psig. Secespol’s JAD XK heat exchangers feature angular connections and circular layers of helically corrugated tubes within the shell, and are designed for vertical installations or any application where space is a limiting factor. Inlets/outlets: (4) 4 in. flange. Overall dimensions: 6 ft. L X 1 ft. 8 in. W X 1 ft. H.(ACN100).