Unused 872 sq. ft. Duplex 2205 SS vertical heat exchanger. Mfg. by Wuxi Chemical Equipment (China) in 2023. 11.473 Design duty (MMBTU/Hr). Shell Design Rating: 232/FV psig @ 430/300 deg. F. Duplex 2205 Tube Design Rating: 180/FV psig @ 380/300 deg. F. Shell mawp 527.5/FV psig @ 430 deg. F. Tube mawp 373.2/FV psig @ 400 deg. F. 21.25" X 144". Serial #WHA22-089-1. National Board #559. Ammonia stripper reboiler. Under Nitrogen Purged.