What's a CRN?
A Canadian Registration Number (CRN) is a number issued by each province or territory of Canada to the design of a pressure vessel or fitting. The CRN identifies the design has been accepted and registered for use in that province or territory. The CRN is stamped on any pressure vessel or fitting built to a registered design.

What gets registered?
Both Canada and the United States use the ASME Section VIII-1 code for pressure vessel (valve) construction but Canada has a CSA B51 standard that provides a more restrictive definition of what a pressure vessel is.

Who does the registration?
Each province does its own registration and provides a CRN number which is put on the vessel nameplate. Canada has 13 provinces and territories, but to register across all of Canada, you must register with 7 Organizations or Jurisdictions.

What does this mean?
Our valves are approved for use in applications and systems throughout Canada as well as all of North America.

Which Clark Cooper Valves have CRNs?
The EH70 and ER Series (up to 3") have a national CRN.
The EH30, EH40, EH50 and EX40 are registered in Ontario, and a national CRN is pending.

See more information about CRNs by clicking here.