Since 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.
ASME U Certificate No. 3415
ASME S Certificate No. 3470
ASME H Certificate No. 21,019
National Board R Certificate No. 2613
ASME Section VIII, Division 1
Compliance program
ASME Section I
Compliance program
ASME Section IX
Compliance program
AWS D1.1 Compliance
Compliance program
API 650 Compliance
Compliance program
ISO 9000 Compliance
Compliance program
Rol-Fab, IncSince 1969, Rol-Fab Inc. has been a large-scale custom fabricator serving industrial and non-industrial customers from its substantial Cleveland-area facility. The company is known for taking on oversized work, including ASME pressure vessels, and operates as an authorized ASME Section VIII, Division I code shop.CLEVELAND, OH
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
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
Didion Vessel, LLCFounded 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.BELLEVUE, OH