Used approximately 3480 square foot shell & tube vertical heat exchanger

Used approximately 3480 square foot shell & tube vertical heat exchanger.. Shell SA515 Gr 70 - 3' 1.25" diameter X 15' long. Maximum working pressure 75 psi @ 150 degrees F. Tubesheets SA240 Type 304 stainless steel 41.875" diameter X 1.6875" nominal thickness. Tubes SA249 Type 304 stainless steel - 3/4" OD 18 BWG - 1182 Tubes - Straight. Heads SA240 T304 stainless steel 3' 1.5" diameter (end a 4' 3") - (end b 2' 6"). Tubes rated 150 psi / FV @ 350 degrees F. Shell Inlet 6" - Outlet 6" Vent 3/4" - Drain 3/4" - Top Head Inlet 18" - Inlet 3" - Bottom Head Outlet 3" - Drain 4" Vent 3/4" - Sight glass (2) 3". 4 Lugs. Built by Harliss Specialties Corp. Year 1987. NB 1186. SN 1186.