Unused 791 sq. ft. Carbon steel heat exchanger. Mfg. by Wuxi Chemical Equipment. 2.2 Design duty (MMBTU/Hr). Shell Design Rating: 550/FV psig @ 490 deg. F. Tube Design Rating: 425/FV psig @ 150 deg. F. Shell mawp 607.4/FV psig @ 490 deg. F. Tube mawp 709.2/FV psig @ 150 deg. F. 22.6" X 180". Serial #WHA22-019-1. National Board #510.Built 2023. Vapor Cooler. Under Nitrogen Purged.