Canadian Registration Number (CRN) Information:
Updated: October 29, 2008

The acronym 'CRN' stands for: Canadian Registration Number. This number is issued by a Canadian Jurisdiction and covers either pressure vessels, fittings, or pressure piping. It is a necessary authorization allowing these components to be in operation in Canada.

• CRN: Number Format Breakdown
• When is a CRN required?
• Registration Requirements per Jurisdiction
• Additional Information: Fitting Categories, Catalogues, Discussions
• Questions? Request for Quotation?

CRN: Number Breakdown per B51

The Canadian standard B51 defines the Canadian Registration Number (CRN) as having the following features:

Additional notes:

Position 1:

-For Fittings, this position has a zero placeholder. -For Pressure Piping, both positions 1 & 2 have a "P", such as  PP2785.7

Position 2:

-For Fittings, this position holds the category of the fitting. -For Pressure vessels, it holds an assigned letter. -For Power Piping, it holds a 'P', as noted above.

Position 8:

-See below for each Jurisdiction's identification number/letter. -For a Canada-wide registration, the user can place a 'C' here instead of listing all of the other jurisdictions. For example, for a fitting: 0A2548.2C

 

When is a CRN required?

The data presented in the following flowcharts is published in the B51 Code and serves as a general guide for
fluids categorized as either "not more hazardous than water", "non-lethal", or "lethal". Please remember that
specific cases involve other factors, and these charts serve as a starting point only for requirements for
a Canadian Registration Number (CRN).

 

For Registration Requirements of each Jurisdiction, select a province:

1- British Columbia	7- New Brunswick
2- Alberta	8- Nova Scotia
3- Saskatchewan	9- Prince Edward Island
4- Manitoba	0- Newfoundland (zero)
5- Ontario	T- Northwest Territories
6- Quebec	Y-Yukon Territory
	N-Nunavut

Additional notes & comments:

What category does the fitting fall under?

TABLE 1 CATEGORIES OF FITTINGS
Category	Type of fitting
A	Pipe fittings : including couplings, tees, elbows, wyes, plugs, unions, nipples, pipe caps or reducers
B	Flanges : all flanges
C	Valves : all line valves
D	Expansion joints, flexible connections, and hose assemblies : all types
E	Strainers, filters, separators and steam traps
F	Measuring devices : including pressure gauges, level gauges, sight glasses, level and pressure transmitters
G	Certified capacity-rated pressure-relief devices acceptable as primary overpressure protection on boilers, pressure vessels and pressure piping, and fusible plugs
H	Pressure-retaining components that do not fall into any of the above categories.

 

Future Discussion topics:

• Can Finite Element Analysis (FEA) be used in a submission? Please refer to ABSA's FEA Guidelines & the Discussion FEA in CRN Submission. More will be added to this topic, in the FEA Section.

• Why is a P.Eng. stamp not needed for a fitting registration?

• How can large catalogues of different fittings be efficiently registered? The approach is vastly different from the registration of a single vessel. The challenge is in the method of defining both the scope of registration and the design parameters.
  

• Can plastic components be registered and under what Code? For a preliminary answer, refer to Discussion Registration of Plastics.

 

For Quotation or Inquiry, contact Key Design Engineering:

email: info@keydesigneng.com

phone: 520-265-3657

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