Unused 47 sq. ft. 316L Stainless steel heat exchanger. Mfg. by Wuxi Chemical Equipment in 2023. 0.099 Design duty (MMBTU/Hr). Shell Design Rating: 220/FV psig @ 300 deg. F. Tube Design Rating: 170 psig @ 150 deg. F. 316L SS Shell mawp 454.6/FV psig @ 300 deg. F. Duplex 2205 SS Tubes mawp 308.2 psig @ 150 deg. F. 7.981" X 84". Serial # WHA22-093-1. National Board #560. Caustic Cooler. Under Nitrogen Purged.