Key Design Engineering

FEA, ASME Code calculations, CRN Registration

When is a CRN Required?

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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”. When dealing with a specific case, there may be additional factors to consider. Additional Notes & Exemptions: Fittings:  For British Columbia and Saskatchewan, see Exemptions for Fittings of Category A, B, C, or G . Refrigeration: For TSSA, not required

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The CRN (Canadian Registration Number).

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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.

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