Established in 1941, WSF Industries designs and manufactures ASME-code autoclaves, pressure vessels and complete process systems from its Tonawanda, New York plant. The company’s distinctive RAPIDOOR® quick-actuating closure, first developed by WSF in 1950, is now used in thousands of installations worldwide, while its single-source engineering and manufacturing approach extends to integrated controls and material handling. WSF also builds and tests large packaged systems at its own facility, with welders certified to ASME Boiler & Pressure Vessel Code Section IX.
ASME Boiler & Pressure Vessel Code Section VIII, Division 1
ASME Boiler & Pressure Vessel Code Section IX
NBIC – National Board Inspection Code
Compliance program
ASME/NQA-1 requirements
Compliance program
U Stamp
R Stamp
ASNT-TC-1A
ASMESECTIONVIIIDIVISION1
Quality certification
ASMEBPVCSECTIONIX
Quality certification
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
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
US Autoclave LtdKnown for more than 25 years of autoclave experience, US Autoclave Ltd. is a Lima, Ohio, manufacturer that builds equipment around the specific requirements of industrial customers. Its technicians continue supporting those systems after delivery, including work at facilities across the United States, Canada and overseas.LIMA, OH
J.D. Cousins, IncFounded in Buffalo in 1867 as a machine builder, J.D. Cousins now designs and fabricates custom heat exchangers and pressure vessels for industrial production plants. The family-owned company has operated at its current Buffalo location since 1904, expanded to more than 25,000 square feet, and has maintained ASME Code certification since earning it shortly after World War II. Its engineers and welders build equipment to project-specific requirements, including oversized and specialty-material designs, for customers across the United States and internationally.BUFFALO, NY