Founded by Don and Jill Didion in 1977, Didion Vessel is a family-owned Bellevue, Ohio manufacturer of custom ASME pressure vessels, industrial autoclaves, and gas separators. The company grew from local welding and millwright work into code fabrication, earning its ASME stamps in 1989 and later certifying more than 3,100 vessels. Its experience with rigging and in-house fabrication also allows Didion to tackle unusually large, heavy custom units, including vessels built in its yard when they exceed shop dimensions.
ASME Section VIII, Division 1 U Stamp
certification
ASME Section VIII, Division 2 U2 Stamp
certification
ASME Section VIII, Division 3 U3 Stamp
certification
ASME Section I S Stamp
certification
ASME B31.1 PP Stamp
certification
NBIC NB-23 R-Repair Stamp
certification
ASME B31.3
certification
European Pressure Equipment Directive (PED) / CE Mark
certification
ABS
certification
American Welding Society (AWS)
certification
American Petroleum Institute (API)
certification
Sistersville Tank Works IncFounded in Sistersville in 1894 during the Mid-Ohio Valley’s oil boom, Sistersville Tank Works builds custom ASME pressure vessels, heat exchangers, tanks and other heavy fabricated equipment. The woman-owned company is now led by the third generation of the Morgan family and serves industrial customers across the United States and overseas. Its Ohio River plant combines large-scale fabrication with in-house engineering, testing and field repair capabilities.SISTERSVILLE, WV
American Boiler, Tank & Welding Co IncFounded by Leo Farley in 1936, Albany’s American Boiler, Tank & Welding Co. fabricates custom pressure vessels, tanks and other heavy industrial equipment, with field repair and installation available as well. The company’s unusually broad project history includes a cargo offload sled built for National Science Foundation work in Greenland, alongside demanding work for utilities, defense and process industries. American Boiler holds ASME U, R, S and H stamps and has maintained NYS Department of Labor OSHA & SHARP certificates since 1998.ALBANY, NY
Halvorsen USASince 1955, Cleveland-based Halvorsen USA has built ASME pressure vessels and large, heavy plate fabrications for industrial customers. Its 110,000-square-foot operation handles projects from engineering through testing and delivery, including heavy plate up to 11 inches thick and lifts reaching 90 tons. Halvorsen has continuously held ASME “U” and “S” certificates and the National Board “R” certificate since 1955.GARFIELD HEIGHTS, OH
McGill AirPressure LLCFamily owned and operated since 1951, Columbus-based McGill AirPressure is known for engineering pressure vessels for demanding industrial processes. Since 1960, it has worked with major manufacturers worldwide, tailoring autoclave systems to applications ranging from composite production to glass lamination and supporting them throughout their service life.GROVEPORT, OH