pressure-vessels-manufacturerDidion's Mechanical
Phone: (419)483-2226 Email

Address:- 1027B Co. Road 308, Bellevue, Ohio 44811

  • pressure vessels
  • heat exchnagers
  • Autoclaves
  • clad vessels
  • pressure vessels2
  • ASME code pressure vessels
  • customized pressure vessels
  • code-compliant pressure vessels

Didion’s Mechanical – Your ASME Pressure Vessel Manufacturer

Didion’s Mechanical is a pressure vessel manufacturer / fabricator of sturdy, code-compliant, and customized pressure vessels. We hold the capabilities to manufacture a wide variety of pressure vessels such as: reactor vessels, autoclaves, separators, evaporators, and so on. Trust our experience of over 30 years to work for you. We are a family owned company that takes pride in every pressure vessel manufacturing project we undertake.

Each pressure vessel that we manufacture is per the American Society of Mechanical Engineers (ASME) code. As a leading ASME pressure vessels manufacturer, our specialty lies in working with a variety of alloys, pressures, & designs to meet your custom requirements.

In-house Capabilities

Didion’s Mechanical can comprehensively analyze your designs or create designs for you based on your process requirements. We are a pressure vessel manufacturer that employs advanced methods of design, including stress and fatigue analysis reports and finite element analysis if required.

Our in-house engineering, drafting, fabrication, machining, radiography, and heat treatment facilities help us to keep tight control over the quality and delivery of each pressure vessel, which is often lost with the use of subcontractors. With little dependence on third party vendors, we are able to honor your deadlines.

Safety is Our Priority

At Didion’s Mechanical, we are careful to follow the A.S.M.E. code and at times exceed it in order to ensure that each pressure vessel that we design and fabricate operates safely. Our equipment and techniques are continually updated to keep pace with progressive technologies.

As a leading pressure vessel manufacturer, we have developed many procedures for the welding of numerous types of steels, chromes, and exotic alloys. We not only hold the A.S.M.E. 'U' stamp, but also the A.S.M.E., 'U2', & 'U3' stamps which makes us especially qualified to design and fabricate large high pressure vessels that will operate safely as designed.

To discuss your next pressure vessels requirement with us, please send us an email at or call us at (419)483-2226 .

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ASME Pressure Vessels Capabilities

Primary Industries Served
  • Oil & Gas
  • Chemical & Petrochemical
  • Power Generation
  • Geothermal
  • Off-Shore
  • All Heavy Industries
Industry Standards
  • A.S.M.E. Sect. VIII, Div. 1, 2, & 3
  • A.S.M.E. Sect. 1
  • A.S.M.E. Sect. B31.1 & B31.3
  • N.B.I.C. (‘R’ Repairs)
  • P.E.D. (European Pressure Equipment Directive)
  • A.W.S. & A.P.I.
  • A.B.S. (American Bureau of Shipping)
Materials Worked With
  • Carbon Steels
  • Stainless Steels
  • High Tensile Ferritic Steels
  • High Alloys
  • Chromes
  • Inconel
  • Monel
  • AR Steels
  • Weld Overlays/Clad Plates
  • Aluminum

With our experience, we can quickly develop procedures for joining your unique material selection if we do not already have procedures developed for the material you request.

Vessel Wall Thickness
  • Unlimited
Vessel Diameter
  • 16 Ft. (In Shop), Unlimited (Yard Fabrication @ Our Facility)
Vessel Weight
  • Unlimited