- ASME/PED/CRN
- ISO 9001:2015 NSAI Certified
CRN PRESSURE VESSELS
CRN Pressure Vessels
Both Canada and the United States use the ASME Section VIII code for pressure vessel design and construction but Canada has standard CSA B51 that further defines a Pressure Vessel.
Each province does its own registration and provides a CRN number which is put on the vessel nameplate. There are 13 provinces and territories, but to register across all of Canada, the “product” must be registered with 7 Organizations or Jurisdictions. The Atlantic Canada provinces and the northern territories have joined together to use one registration organization, ACI Central.
Saskatchewan is the only province that recognizes the internationally recognized National Board registration system (ASME) as an acceptable alternative to CRNs, although an additional Saskatchewan filing fee also has to be paid per vessel. Pressure vessels that are CRN registered can also be National Board Registered if desired. A design can be registered in more than one jurisdiction.
For pressure vessels manufactured outside of Canada for Canadian use, it must be both CRN registered and National Board registered.
BEPeterson designs and manufactures CRN pressure vessels. We assume “turn-key” responsibility to insure that your pressure vessel meets all ASME and CRN requirements for the province where the pressure vessel will be used. Single province CRN’s or multiple province and national registration for OEM distribution is provided by BEPeterson.

International Standard Compliance
Cutting-edge Welding Processes
Rigorous Testing & Inspection
Detailed Reports
International Standard Compliance
- All vessels meet all applicable codes and standards (ASME, PED, and CRN).
- As a trusted ammonia tank manufacturer, BEPeterson delivers products with on time delivery, and to certified ISO 9001 quality standards.
Cutting-edge Welding Processes
- BEPeterson uses modern welding equipment, including submerged arc, which provides efficient and smooth welding of ammonia tanks.
- We meet the most sophisticated weld procedures using TIG, MIG, SAW, SMAW, FCAW with a variety of wire and fluxes.
- Qualified ASME Welders and an extensive radiographic capability support all types of ASME Section VIII code construction.
- Our welding capability is supported by a weld-engineering group consisting of multiple CWIs, and in-process weld inspectors.
Rigorous Testing & Inspection
- Every shell and tube heat exchanger is fully documented and inspected by authorized ASME Inspectors.
Detailed Reports
- BEPeterson provides full documentation, material test certificates, RT, and hydro test reports prior to shipment.