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.

New Construction & Installation

New pressure vessel fabrication to ASME code in our fully equipped code shop. Condensers (vertical or horizontal), jacketed vessels, and custom-engineered vessels built to your specifications with full documentation.

Pressure Vessel Repairs

ASME code repairs performed in our shop or by our field team — available 24 hours for emergency service. Manway repairs, nozzle retrofits, shell repairs, and all code-required documentation handled from start to finish.

Pressure Vessel Alterations

Vessel alterations performed to ASME code — adding nozzles, modifying internals, upgrading connections, and re-rating vessels for new service conditions. Full engineering review and documentation provided.

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.

ASME U

New pressure vessel fabrication

NB R

Repairs and alterations

ASME PP

Power piping and boiler external piping support

Pressure Vessels

Code-compliant vessel fabrication, nozzle work, pressure-boundary components, testing, and turnover documentation.

R Stamp Repairs

Repairs, alterations, flush patches, nozzle replacements, shell repairs, and Authorized Inspector coordination.

Tanks & Packages

Custom tanks, process vessels, skid-mounted equipment, utility packages, and shop-fabricated assemblies.

Steam & Power

Boiler, steam, condensate, power piping, pressure retaining systems, and outage support.

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.

Chemical & Petrochemical

Process vessels, tanks, pressure-boundary repairs, utility systems, corrosion repairs, and shutdown work.

Pharmaceutical & Biotech

Documentation-heavy fabrication, clean utility support, process equipment, stainless fabrication, and traceability.

Data Centers

Mechanical skids, fuel systems, hydronic support equipment, prefabricated assemblies, and fast-track infrastructure.

Power & Boiler

Boiler external piping support, steam systems, pressure vessel repairs, outage work, and code documentation.

Semiconductor

Utility vessels, process support equipment, high-purity support fabrication, and modular prefabrication.

Industrial Manufacturing

Plant maintenance, process tanks, pressure equipment repairs, modifications, and turnkey fabrication packages.

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.

R-Stamp

Certified for repair & alteration of pressure vessels per ASME code. Shop and field work authorized.

U-Stamp

Certified for the fabrication of new pressure vessels to ASME Section VIII, Division 1 requirements.

PP-Stamp

ASME PP certification for fabrication of power piping and boiler external piping — authorized for code work on high-pressure steam and power systems.

Documentation & Accountability

Full Paperwork. Zero Guessing.

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. From design and calculations all the way through completion, we support and work with you for a first-rate job that exceeds your expectations.

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.

In Our Shop

ASME Code Fabrication Shop

Fully equipped for new fabrication, repair, and alteration of pressure vessels in a controlled shop environment with full inspection access.

24-Hour Emergency

Field Code Welders On Call

Highly skilled code welders available 24 hours for emergency field repairs and alterations directly on your site — no waiting for a shop slot.

Hartford Steam Boiler Recognition

Recognized Quality ASME Code Shop

We are recognized by The Hartford Steam Boiler Inspection and Insurance Company as a quality ASME code shop — an independent third-party validation of our processes, qualifications, and code compliance.

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.

  • Weld Operator Certified for Orbital Welding
    Automatic orbital welding certification for high-purity 3-A sanitary tubing in pharmaceutical, food & beverage, and biotech applications — where manual welding isn’t an option.
  • Certified Weld Inspector (CWI) On Staff
    AWS-certified weld inspector on staff for quality assurance, procedure qualification review, and code documentation on all welding operations.
  • Trained in Medical Gas Certification
    Specialized training for medical gas piping systems — NFPA 99 compliant installation, purging, testing, and documentation for healthcare facility gas distribution.
  • Smith Fibercast Trained
    Factory-trained on Smith Fibercast FRP (fiberglass reinforced plastic) piping systems for corrosive chemical and industrial environments where metallic systems fail.
  • Boiler’s Licensed
    Licensed for boiler installation, repair, and maintenance work — integrating with our steam piping, condensate, and ASME vessel capabilities for complete boiler system projects.

Independent Recognition

Hartford Steam Boiler Inspection & Insurance Company

Being recognized by The Hartford Steam Boiler Inspection and Insurance Company as a quality ASME code shop is not a self-declared title — it’s third-party validation of our quality system, personnel qualifications, and code compliance track record.

From Design to Completion

Full Project Support, Start to Finish

From design and calculations all the way through completion, our team at Jergens Piping Corporation will support and work together with you in order to provide a first-rate job that exceeds all of your expectations.

  • Design review and engineering calculations
  • Material procurement and traceability documentation
  • Fabrication to ASME code with authorized inspection
  • Pressure testing, NDE, and final documentation
  • Field installation and commissioning support

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.

Ready to Discuss Your Vessel Project?

New construction, repairs, alterations, or emergency field service — Jergens Piping has the ASME certifications, the code shop, and the 24-hour field team to handle it right.