Used 3135 Sq Ft Struthers Wells 316L Stainless Steel Horizontal Shell & Tube Heat Exchanger. Shell rated 75 psig FV @230 F, Tubes rated 75 psig @ 230 F; (1060) x 3/4" ID x 16' Lg x 16 ga, type NGN, fixed tube sheet. Mounted on 2 saddles. Serial 3.80.04.39275, National Board #3274, Built 1980. Approx Weight - 22,500 lbs. Previous Use: Ethylene Oxide.