Tanks & Vessels
Pressure Vessels, Tanks & Code Fabrication
When working with pressure vessels, there is no room for trial and error. Jergens Piping Corporation has been successfully and safely performing ASME code vessel work for many years — recognized by The Hartford Steam Boiler Inspection and Insurance Company as a quality ASME code shop.
R-Stamp
Repair & Alteration Certified
U-Stamp
New Fabrication Certified
CWI
On Staff
24-Hour
Emergency Field Service
Hartford
Steam Boiler Recognized
No Room for Trial & Error. We Know That.
Our experienced, professional craftsmen are capable of performing work across the full range of pressure vessel services — new construction, repairs, alterations, and certified exotic alloy welding. From design and calculations all the way through completion, our team will support and work together with you to provide a first-rate job that exceeds all of your expectations.
We have a fully equipped ASME code fabrication shop where we can alter and repair your pressure vessels. In addition, we have a field team of highly skilled code welders that offer 24-hour emergency service and can repair or alter your pressure vessels on site.
Accountability of material and repairs is standard. All documentation for materials and repairs is provided to the appropriate authorizing body along with a copy for your record keeping. Whether you are installing a new vessel, repairing a manway, or retrofitting a new nozzle — we have the qualifications and experienced personnel to handle the project.
What We Do
Pressure Vessel Services
Full-scope ASME code vessel work — from new construction in our certified fabrication shop to emergency field repairs anywhere on your site.
ASME Code Fabrication & Repairs
Pressure Vessels, Tanks, Boiler Components & Industrial Code Work
ASME U, National Board R, and ASME PP Stamp fabrication services for pressure vessels, tanks, repairs, alterations, steam, boiler, chemical, petrochemical, pharmaceutical, semiconductor, data center, and power applications.
Markets We Support
Built for Critical Process Industries
Our vessel and fabrication programs are positioned for customers where quality control, schedule, traceability, and documentation are just as important as the finished weld.
Quality, Inspection & Turnover
Code Work Requires More Than Welding
Jergens supports ASME and National Board work with controlled procedures, material traceability, inspection coordination, and complete documentation packages required by owners, inspectors, and regulatory authorities.
ASME Section VIII Division 1 pressure vessel fabrication
National Board R Stamp repairs and alterations
ASME Section IX qualified welding procedures and personnel
Authorized Inspector coordination and inspection hold points
Material receiving, traceability, and heat number control
NDE coordination, hydrostatic testing, and pneumatic testing support
U-1 data reports, R forms, travelers, and turnover packages
Shop fabrication to reduce field labor and schedule risk
ASME Certifications
Our Stamps & Credentials
These aren’t plaques on a wall — they’re legal certifications that authorize us to perform code work on pressure vessels. Every stamp requires rigorous quality system audits, qualified procedures, and authorized inspection. We hold them all.
Shop & Field Capability
Two Ways to Reach You:
Shop & On-Site
We have a fully equipped ASME code fabrication shop where we can alter and repair your pressure vessels. In addition, we have a field team of highly skilled code welders that offer 24-hour emergency service and can repair or alter your pressure vessels on site.
Additional Certifications & Training
Beyond the Stamps
Our ASME stamps are the foundation — but our full certification portfolio goes deeper, covering specialized welding processes, material systems, and inspection qualifications.
From Our Shop & Field
The Work We Do
Real work from our Mendon, MI shop — pressure vessel handling, large-diameter fabrication, and skid assembly all done under one roof with our ASME-certified team.




