Pressure Vessels Pressure vessels, columns and reactors up to 18 ft. diameter, Lengths to 200 ft. Providing vessels up to 260+ tons. ASME Section VIII Division 1 and 2 Pressure Vessels. ASME Pressure Vessels, Tray Towers, Reactors, Fractionators, Contactors, Drums, Separators, Mixers, Agitators Materials of construction: Carbon, Chrome, Stainless, Duplex, AL-6XN, Hastelloy, Inconel, Monel, Alloy 20, Nickel Alloy