Used 16,000 Gallon vertical, 304SS storage Tank. Design Pressure: 7" H20 @ 250 deg F. 14' dia x 14' High. Slightly dished Top, Flat bottom. Top fittings: 20" Manway, 4", 3", 1-1/2"; 20" Side manway; 3" side bottom outlet. Manufacturer: PITTSBURGH DES MOINES STEEL, Built 1968. Previous usage: Crude Maleic Anhydride Tank