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Vessel registration numbers most commonly follow the format suggested by CSA B51-14 4.3.2.

Category H fittings often look like miniature vessels. Determining if you have a vessel or fitting only applies to items that look like large or small pressure vessels. 

Fittings are broken down into categories for registration. A manufacturer must apply separately with different statutory declarations for each category that their registered product line covers.

Frequently asked questions on the registration of vessels and fittings.

PVEng has registered hundreds of fittings using burst testing. Based on our own experience and reports from our customers, these are the most common burst test fitting registration problems.

There are many ASME rules covering burst testing originating in many different code books. A successful burst test requires the use of the correct code book, and the correct method within the book.

The maximum allowable working pressure for vessels or vessel parts for which the strength cannot be computed with satisfactory assurance of accuracy can be established by burst testing. Burst testing may only be used for the purpose of establishing a maximum allowable working pressure of those elements or components for which code calculations cannot be applied.