• It is important to review the provincial regulations for piping as the differences can be substantial. Piping Registration Requirements.
• CRITICAL – All purchased fittings used in piping systems must have valid CRN’s from the manufacturer for the province of registration regardless of the design, manufacturer or code. CSA B51 8.2. This is crucial for pipe fitting registrations and is often the most difficult part of a piping registration. Canada registers all fittings used in pressure systems including small pipe fittings (elbows, tees reducers etc.) as well the standard ASME flanges, valves, filters etc. (see fitting section above for more information and possible exemptions)
• There are two types of piping registrations. Category H for assemblies less than 1.5 cubic feet (see fitting description above) and piping registrations for system larger than 1.5 cubic feet.
• Piping registrations are tied to an actual address and cannot be built multiple times like vessels or fitting CRN’s allow.
• There are very specific PRV requirements in many provinces, specifically Alberta.
• Pressure vessels and heat exchangers are not considered as part of the piping system and must be registered separately by the manufacturer and have their own CRN numbers. They are not included as part of the calculation of volume for the piping system.
• Sample and explanation of various documents included with piping submissions.