Unused 22 sq. ft. Duplex 2250 stainless steel horizontal heat exchanger. Mfg. by Wuxi Chemical Equipment. .25 Design duty (MMBTU/Hr). CS Shell Design Rating: 180/FV psig @ 430/300 deg. F. Duplex 2205 SS Tube Design Rating: 232/FV psig @ 430/400 deg. F. Shell mawp 412.2/FV psig@ 430 deg. F. Tube mawp 532.3/FV psig @ 430 deg. F. 7.891" X 72". Serial #WHA22-122-1. National Board #547. Built 2023. T-2002 Recirculating Exchanger. Nitrogen Purged