Used 8136 sq ft horizontal carbon steel shell and tube heat exchanger. Manufactured by Steeltek. Tube rated 850 psi @150F. (1897) Carbon steel straigt tubes. .6250" diameter x 40" length. Shell rated 250 psi @150F. Shell is equipped with a 42" carbon steel Surge Drum attached on top of shell with (4) 18" risers, Serial #06S-2168A, National board #1671. Built 2007. Previous use in dew point control plant, gas chiller.