Custom Pressure Vessels

Custom Pressure Vessels

ASME Code Pressure Vessels, China Code Pressure Vessels, National Board of Boiler & Pressure Vessels Inspectors Stamps, Heat Exchangers, Extensive Code Welding & Fabrication Expertise...

ASME Code Pressure Vessels

ASME is the Amercian Society of Mechanical Engineers. Ascension Industries can build Pressure Vessels to your design or specifications, applying the ASME Boiler and Pressure Vessel Code that is recognized worldwide. All pressure vessels are built to ASME Section VIII, Division I Standards to take advantage of the strict quality controls that ASME demands.

Every ASME code vessel is rigorously tested before shipment. All quality assurance testing/treatments are available locally.

Ascension Industries holds the ASME 'U' Symbol Certification.

Ascension Industries is authorized to apply the “NB” Mark and Register boilers, pressure vessels and other pressure retaining items with the National Board.

Ascension Industries also holds the National Board of Boiler & Pressure Vessels Inspectors "R" Stamp Certification, which allows for the repair & alteration of ASME pressure vessels.

European Pressure Equipment Directive (PED) Pressure Vessels

China Code Pressure Vessels

The Ascension Advantage...

Ascension's certification and capability allows us to provide manufacturing solutions for practically all industrial construction requirements.

  • New Equipment
  • Replacement Equipment
  • Retrofits

Codes / Certificates:

ASME Sec. VIII, Division I (U Stamp)
The National Board of Boiler & Pressure Vessels Inspectors R & NB Stamps
China Code Stamp
API 620 (Shop Fabrication)
API 650 (Shop Fabrication)


  • Up to 13 feet in diameter and 80 feet in length


  • All forms of manual and automatic welding


  • Carbon Steel
  • Stainless Steel 304, 304L, 316, 316L, 317,317L & 904L
  • Nickel Based Alloy 20, Inconel, Hastelloy, and Avesta
  • Copper Alloys
  • Nickel Alloys
  • Aluminum
  • Titanium


  • Our Engineering team offers a wide variety of capabilities. See our Engineering page for all the advantages that we have to offer.

Ascension Industries Pressure Vessels

For More Information About Custom Pressure Vessel Manufacture Please Call John Domagalski (716) 693-9381 or e-mail This email address is being protected from spambots. You need JavaScript enabled to view it.