Unused 1234 sq. ft. Carbon steel heat exchanger. Mfg. by Wuxi chemical Equipment in 2023. 7.6 Design duty (MMBTU/Hr). Shell Design Rating: 250/FV psig @ 725 deg. F. Tube Design Rating: 325/FV psig @ 680 deg. F. Shell mawp 380.1/FV psig @ 725 deg. F. Tube mawp 475.8/FV psig @ 680 deg. F. 30" X 144". Serial # WHA22-021-1. National Board #539. Product Fractionator Feed/Bottoms Exchanger No. 2. Under Nitrogen Purge