Knowledge Base

  • All
  • API Tanks
  • ASME
  • Boiler
  • Dehydration Unit
  • Fabrication
  • Heat Exchangers
  • Piping
  • Production Drawings
  • Repair and Alteration
  • Separators
  • Skid-Mounted
  • Stamps
  • Training Videos
  • Vessel Knowledge
    •   Back
    • Shell and Tube Heat Exchangers
    • Air-Cooled Heat Exchangers
    • Compact Heat Exchangers
    • Other Heat Exchangers
    •   Back
    • Sand Separators
    • Three Phase Separators
    • Two Phase Separators
    • Gas Separator
    • Magnetic Separators
    • Liquid Separators
    •   Back
    • Joint Review
    • U Stamp
    • UM Stamp
    • PP Stamp
    • S Stamp
    • U2 Stamp
    • H Stamp
A picture of an American flag

USA State Jurisdictions Information The following information is intended to help Manufactures with Jurisdictional knowledge, rules, regulations and the information you need. We do our best to stay up to date with this information, but things change regularly; please use due diligence and give the chief a call to verify the information is still valid or just to say hello! Click on the State menu tab below to...

  • All
  • API Tanks
  • ASME
  • Boiler
  • Dehydration Unit
  • Fabrication
  • Heat Exchangers
  • Piping
  • Production Drawings
  • Repair and Alteration
  • Separators
  • Skid-Mounted
  • Stamps
  • Training Videos
  • Vessel Knowledge
    •   Back
    • Shell and Tube Heat Exchangers
    • Air-Cooled Heat Exchangers
    • Compact Heat Exchangers
    • Other Heat Exchangers
    •   Back
    • Sand Separators
    • Three Phase Separators
    • Two Phase Separators
    • Gas Separator
    • Magnetic Separators
    • Liquid Separators
    •   Back
    • Joint Review
    • U Stamp
    • UM Stamp
    • PP Stamp
    • S Stamp
    • U2 Stamp
    • H Stamp
Two men standing in front of a shell of a pressure vessel in fabrication

AIA Organizations Holding Certificates Of Accreditation (AIA) From The American Society Of Mechanical Engineers This list is not to be considered an official listing of holders of AIA Certificates. AIA firms change frequently, and this list is updated frequently to stay on top of the changes. Your due diligence in selecting an AIA is up to you. It would be best if you were satisfied with the service

  • All
  • API Tanks
  • ASME
  • Boiler
  • Dehydration Unit
  • Fabrication
  • Heat Exchangers
  • Piping
  • Production Drawings
  • Repair and Alteration
  • Separators
  • Skid-Mounted
  • Stamps
  • Training Videos
  • Vessel Knowledge
    •   Back
    • Shell and Tube Heat Exchangers
    • Air-Cooled Heat Exchangers
    • Compact Heat Exchangers
    • Other Heat Exchangers
    •   Back
    • Sand Separators
    • Three Phase Separators
    • Two Phase Separators
    • Gas Separator
    • Magnetic Separators
    • Liquid Separators
    •   Back
    • Joint Review
    • U Stamp
    • UM Stamp
    • PP Stamp
    • S Stamp
    • U2 Stamp
    • H Stamp
Inspector with hard hat, clipboard

Appendix 47 Supporting ASME Section VIII, Division 1 Certificate Holders Appendix 47 Design Qualification Compliance The 2025 Edition of ASME Section VIII, Division 1 revised Mandatory Appendix 47 and changed how the qualifications of pressure-vessel design personnel are established and documented. Under the revised requirements, the Certificate Holder is responsible for defining the minimum qualifications appropriate for its products, documenting how those qualifications are satisfied, and maintaining controls...

  • All
  • API Tanks
  • ASME
  • Boiler
  • Dehydration Unit
  • Fabrication
  • Heat Exchangers
  • Piping
  • Production Drawings
  • Repair and Alteration
  • Separators
  • Skid-Mounted
  • Stamps
  • Training Videos
  • Vessel Knowledge
    •   Back
    • Shell and Tube Heat Exchangers
    • Air-Cooled Heat Exchangers
    • Compact Heat Exchangers
    • Other Heat Exchangers
    •   Back
    • Sand Separators
    • Three Phase Separators
    • Two Phase Separators
    • Gas Separator
    • Magnetic Separators
    • Liquid Separators
    •   Back
    • Joint Review
    • U Stamp
    • UM Stamp
    • PP Stamp
    • S Stamp
    • U2 Stamp
    • H Stamp
Picture for page ASME Joint Review. It's a picture of an AIA Inspector with clipboard, Inspecting a Pressure Vessel

Understanding ASME Joint Reviews Understanding a ASME Joint Review – Key Elements By understanding the key elements of a ASME Joint Review and taking proactive steps to prepare for it, manufacturers can ensure the quality and safety of their pressure vessels and boilers. It is the one most exemplary achievements a fabrication shop can attain is Certification, which indicates a level of quality that is superior to organizations...

  • All
  • API Tanks
  • ASME
  • Boiler
  • Dehydration Unit
  • Fabrication
  • Heat Exchangers
  • Piping
  • Production Drawings
  • Repair and Alteration
  • Separators
  • Skid-Mounted
  • Stamps
  • Training Videos
  • Vessel Knowledge
    •   Back
    • Shell and Tube Heat Exchangers
    • Air-Cooled Heat Exchangers
    • Compact Heat Exchangers
    • Other Heat Exchangers
    •   Back
    • Sand Separators
    • Three Phase Separators
    • Two Phase Separators
    • Gas Separator
    • Magnetic Separators
    • Liquid Separators
    •   Back
    • Joint Review
    • U Stamp
    • UM Stamp
    • PP Stamp
    • S Stamp
    • U2 Stamp
    • H Stamp
Picture for Certificates of Authorization. It's of a Welder grinding on side of pressure vessel shell

Applicant’s Guide for Certificates of Authorization Home / Applicant’s Guide for Certificates of Authorization Certificates of Authorization is a pinnacle achievement for fabrication shops, signifying a commitment to excellence and adherence to rigorous quality standards. This distinction sets certified shops apart from those lacking formal documentation, solidifying their reputation for producing world-class products. These are the processes for Stamp Accreditation. Click on each link for more info. See...

  • All
  • API Tanks
  • ASME
  • Boiler
  • Dehydration Unit
  • Fabrication
  • Heat Exchangers
  • Piping
  • Production Drawings
  • Repair and Alteration
  • Separators
  • Skid-Mounted
  • Stamps
  • Training Videos
  • Vessel Knowledge
    •   Back
    • Shell and Tube Heat Exchangers
    • Air-Cooled Heat Exchangers
    • Compact Heat Exchangers
    • Other Heat Exchangers
    •   Back
    • Sand Separators
    • Three Phase Separators
    • Two Phase Separators
    • Gas Separator
    • Magnetic Separators
    • Liquid Separators
    •   Back
    • Joint Review
    • U Stamp
    • UM Stamp
    • PP Stamp
    • S Stamp
    • U2 Stamp
    • H Stamp
A vertical and horizontal vessel in front of a fab shop

Applicants Applicants Requesting; New, Multiple, or Renewal Certification There are also a lot more questions you may have like, what is the Pressure Vessel certification process? Pressure Vessel manufacture certification is the same as the Authorization for the ASME® Stamp. The Pressure Vessel manufacturers can implement the Quality Control System and then apply for ASME® Stamp. See below the articles to Download or Print the PDF for future...

  • All
  • API Tanks
  • ASME
  • Boiler
  • Dehydration Unit
  • Fabrication
  • Heat Exchangers
  • Piping
  • Production Drawings
  • Repair and Alteration
  • Separators
  • Skid-Mounted
  • Stamps
  • Training Videos
  • Vessel Knowledge
    •   Back
    • Shell and Tube Heat Exchangers
    • Air-Cooled Heat Exchangers
    • Compact Heat Exchangers
    • Other Heat Exchangers
    •   Back
    • Sand Separators
    • Three Phase Separators
    • Two Phase Separators
    • Gas Separator
    • Magnetic Separators
    • Liquid Separators
    •   Back
    • Joint Review
    • U Stamp
    • UM Stamp
    • PP Stamp
    • S Stamp
    • U2 Stamp
    • H Stamp
welder welding a flange on a pressure vessel nozzel

Checklist Pre-Joint Review Checklist: The following is a list of items to verify prior to the Pre-Joint Review Audit. Please be advised that this list is general and does not cover all areas in detail. See below the articles to Download or Print the PDF for future use.  1. Verify that the application sent to ASME and/or the National Board is correct and addresses the proper Keep a...

  • All
  • API Tanks
  • ASME
  • Boiler
  • Dehydration Unit
  • Fabrication
  • Heat Exchangers
  • Piping
  • Production Drawings
  • Repair and Alteration
  • Separators
  • Skid-Mounted
  • Stamps
  • Training Videos
  • Vessel Knowledge
    •   Back
    • Shell and Tube Heat Exchangers
    • Air-Cooled Heat Exchangers
    • Compact Heat Exchangers
    • Other Heat Exchangers
    •   Back
    • Sand Separators
    • Three Phase Separators
    • Two Phase Separators
    • Gas Separator
    • Magnetic Separators
    • Liquid Separators
    •   Back
    • Joint Review
    • U Stamp
    • UM Stamp
    • PP Stamp
    • S Stamp
    • U2 Stamp
    • H Stamp
Knowledge Base picture is of a horizontal pressure vessel in front of a refinery in background

Vessel Information Browse Through Our Vessel Information Database Waste Heat Recovery Boilers Material Selection for High-Pressure Applications ASME Applicants Requesting; New, Multiple, or Renewal Certification Understanding ASME® Joint Reviews: A Comprehensive Guide ASME® API 650 Tank Calculations Dive into the world of pressure vessel description with collection of informative blogs. Explore the intricacies of design, manufacturing, and applications for a wide range of pressure vessels, from industrial boilers...

FAQ

  • All
  • API Tanks
  • ASME
  • Boiler
  • Dehydration Unit
  • Fabrication
  • Heat Exchangers
  • Piping
  • Production Drawings
  • Repair and Alteration
  • Separators
  • Skid-Mounted
  • Stamps
  • Training Videos
  • Vessel Knowledge
    •   Back
    • Shell and Tube Heat Exchangers
    • Air-Cooled Heat Exchangers
    • Compact Heat Exchangers
    • Other Heat Exchangers
    •   Back
    • Sand Separators
    • Three Phase Separators
    • Two Phase Separators
    • Gas Separator
    • Magnetic Separators
    • Liquid Separators
    •   Back
    • Joint Review
    • U Stamp
    • UM Stamp
    • PP Stamp
    • S Stamp
    • U2 Stamp
    • H Stamp
A picture of blueprint with pressure vessels overlaid with the wording "FAQ"

Welcome to the Authorized Inspector FAQ Library, your go-to resource for clear, reliable answers about the ASME Boiler and Pressure Vessel Code (BPVC), ASME Joint Reviews, and the National Board Inspection Code (NBIC). Our goal is to simplify complex code requirements and help manufacturers, inspectors, and repair organizations stay compliant and inspection-ready.Whether you’re preparing for certification, reviewing design requirements, or managing in-service equipment, this library provides straightforward explanations...

  • All
  • API Tanks
  • ASME
  • Boiler
  • Dehydration Unit
  • Fabrication
  • Heat Exchangers
  • Piping
  • Production Drawings
  • Repair and Alteration
  • Separators
  • Skid-Mounted
  • Stamps
  • Training Videos
  • Vessel Knowledge
    •   Back
    • Shell and Tube Heat Exchangers
    • Air-Cooled Heat Exchangers
    • Compact Heat Exchangers
    • Other Heat Exchangers
    •   Back
    • Sand Separators
    • Three Phase Separators
    • Two Phase Separators
    • Gas Separator
    • Magnetic Separators
    • Liquid Separators
    •   Back
    • Joint Review
    • U Stamp
    • UM Stamp
    • PP Stamp
    • S Stamp
    • U2 Stamp
    • H Stamp
A picture of pressure vessel with the wording "Code Knowledge" in front

Test Your Knowledge Challenge Yourself. Choose a Section That Best Suits You Challenge yourself and answer question pertaining to Section VIII, Division 1, Section 1, Power Boilers, Section IV, Heating Boilers, NBIC Inspection Code, Section...

  • All
  • API Tanks
  • ASME
  • Boiler
  • Dehydration Unit
  • Fabrication
  • Heat Exchangers
  • Piping
  • Production Drawings
  • Repair and Alteration
  • Separators
  • Skid-Mounted
  • Stamps
  • Training Videos
  • Vessel Knowledge
    •   Back
    • Shell and Tube Heat Exchangers
    • Air-Cooled Heat Exchangers
    • Compact Heat Exchangers
    • Other Heat Exchangers
    •   Back
    • Sand Separators
    • Three Phase Separators
    • Two Phase Separators
    • Gas Separator
    • Magnetic Separators
    • Liquid Separators
    •   Back
    • Joint Review
    • U Stamp
    • UM Stamp
    • PP Stamp
    • S Stamp
    • U2 Stamp
    • H Stamp
a picture of a calculator and pencils

Design Tools Choose a Calculator That Best Suits You Welcome to your central resource for pressure vessel design tools and engineering calculators. Whether you’re working with ASME Section II materials, calculating allowable stress values, or designing heads and shells, our suite of tools is built to streamline your workflow and help you stay aligned with code requirements. From precise pressure vessel component calculators to comprehensive unit conversions, this...

From Our Sponsor