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Author Archives: Administrator
Pig launcher/pig receiver
The name sounds rather silly, and it brings to mind something like a potato gun, but launching something much larger than a potato. This is, of course, not at all what a pig launcher is. “Pigging” is the term used … Continue reading
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TSSA: Code Adoption
CSA B51: In Ontario, TSSA does not automatically accept all of CSA B51’s definitions and positions for boilers and pressure vessels. The jurisdiction has the final authority, and can choose to accept or deny any code, or portion of code, … Continue reading
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Finite Element Analysis (FEA) requirements for ACI Central:
ACI Central has a guideline for using FEA in CRN submissions, and is available upon request. It can be found here (current as of 2010). It varies significantly from ABSA’s AB-520 guideline (click here). ACI Central’s guideline follows the requirements … Continue reading
How does ASME calculate o-ring flanges?
A) With Metal-to-Metal contact outside of the Bolt-Circle Diameter (BCD): Must use Appendix-Y calculation in ASME VIII-1, or FEA (Finite Element Analysis) if it doesn’t conform to the standard configuration. Not all pressure vessel software packages will do Appendix-Y, but … Continue reading
Need CRN-registered components?
If you need a good starting point for components that already carry a CRN, or at least help to find manufacturers & suppliers who are familiar with obtaining CRNs, here is a list that provides a few to “set you … Continue reading
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CRN requirements for B16.9 fittings?
Per ASME B16.9 Factory-Made Wrought Buttwelding Fittings, the components must be verified by either “mathematical analyses” or “successful proof test data”. What is accepted by the Canadian Jurisdictions, for registration per B16.9? -Proof tests are the usual way of successfully … Continue reading
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Selling components without CRN
Recently I’ve come across companies who will readily supply a CRN number when requested (like for a fitting). However, when they are asked to produce the documentation, either: The CRN is expired by up to 4 years ago in the … Continue reading
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Is a CRN required for hose @ ABSA?
Per ABSA IB10-004, referencing CSA B51-09 Clause 8.2, flexible hose assemblies don’t need to be CRN registered in Alberta if they are manufactured to RMA IP-2, which is the Rubber Manufacturers Association Hose Handbook. Note, if the rubber hose doesn’t … Continue reading
Threaded connections, allowed?
Yes, of course they’re allowed. Are there requirements for threaded connections? ASME B31.3-2008–Process Piping -Threaded Joints: Per ASME B31.3-2008 para.314, threaded joints are limited to Normal Fluid Service, and of course Category D Service. Tapered thread must conform to ASME … Continue reading
ABSA Quality Requirements? Pressure Piping
What are the Quality Management System requirements for a fabricator of Pressure Piping to be installed in Alberta? Canadian Fabricator in Alberta: Must have an Alberta Certificate of Authorization that covers the required Code of Construction, such as B31.1, B31.3, … Continue reading
