3 tube wiped surface heat exchanger Unit has (1) heating exchanger and (2) cooling exchangers. Heating tube, Nominal 5 Square foot surface area, a CS jacket, Nickel 200 inner tube, 6 5/8" ID x 38" long, National Board # 545, Serial Number S-484. Internal and Jacket rated FV/150 psi @ - 20 to 360 degree F. Volume 1.1 cu ft. rotor is driven by a hydraulic motor Model R2A-168-16T30B, Serial Number H30030-H. 1" threaded inlet & 1 " threaded outlet. First cooling tube Nominal 5 Square foot surface area, a CS jacket, Nickel 200 inner tube, 6 5/8" ID x 38" long, National Board # 5771, Serial Number S-506. Internal and Jacket rated FV/150 psi @ - 20 to 360 deg Fvac. Volume 1.1 cu ft. rotor is driven by a hydraulic motor Model R2A-168-16T30B, Serial Number C840189. 1" threaded inlet & 1 " threaded outlet. Second cooling tube Nominal 5 Square foot surface area, a CS jacket, Nickel 200 inner tube, 6 5/8" ID x 38" long, National Board # 5690, Serial Number S-457. Internal and Jacket rated FV/150 psi @ - 20 to 360 deg Fvac. Volume 1.1 cu ft. rotor is driven by a hydraulic motor Model R2A-253-20T30B, Serial Number C840154. 1" threaded inlet & 1 " threaded outlet. All 3 scraped surface exchangers are mounted on a common skid with legs.