What is the rule of thumb for CRN number registration?
What is the rule of thumb for CRN number registration?
(OP)
Who knows the rule of thumb for CRN number registration? What kinds of vessel doesn't need to be registered? Size? Pressure?
Thanks.
Thanks.





RE: What is the rule of thumb for CRN number registration?
It will require a CRN in Alberta if it is to contain expansible fluid in excess of 15 PSI. The pressure diameter combination will simply determine whether it is a fitting or a vessel CRN. In the case of a fitting it would not require 3rd party inspection involvement. This would be similar to a UM vessel.
It should also be noted that a vessel to come to Alberta (where I am located) from outside of Canada MUST have an ASME code stamp and be registered with the National Board along with bearing a CRN.
EJL
RE: What is the rule of thumb for CRN number registration?
In Alberta, Figure 1(b) in CSA B51 is used as a guide to determine if a small pressure vessel can be treated as a category H fitting. However, the Administrator has final say over whether an item may be registered as a fitting or must be registered as a pressure vessel.
See: Figure 1(b) in CSA B51
You can find more info here.
http://absa.ca/ActAndRegs.aspx
RE: What is the rule of thumb for CRN number registration?
I am also curious about fitting registration. I think the fittings from vendor have been registered. But I knew some times say 10" equal tee c/w 10"x8" reducer also need to be registered after welding, are there any rules of thumb?
RE: What is the rule of thumb for CRN number registration?
Probably the best I have seen. If you job this out to a French speaking Canadian PE that helps as well.
RE: What is the rule of thumb for CRN number registration?
If it's for a province other than Quebec or possibly New Brunswick, I can't imagine having a French speaking or bilingual engineer would help very much.
RE: What is the rule of thumb for CRN number registration?
Just relating past years and "best practice" no offense intended. Most manufactuers in the US submit to Quebec first, and if that goes well the rest will follow.
RE: What is the rule of thumb for CRN number registration?
I even know of a case where an Australian company called ABSA for guidance on ASME code impact testing when the vessel wasn't going to Alberta. A couple of oil companies have an internal requirement that equipment must have and Alberta CRN regardless of the location of construction or location of installation.
RE: What is the rule of thumb for CRN number registration?
Yes, I agree they are tops. Have great respect for Dr.Lau.
If you do tubesheets...UHX. If you use UW-16 make sure you review the new Code edition.
It is also best if there are no "gray areas".
RE: What is the rule of thumb for CRN number registration?
Are you as salesman for ABSA? Just kidding. I agree, the Survellence Engineers in ABSA are a really fine bunch of guys and very knowledable. I really like dealing with them. The people in TSSA is also excellent.
deanc,
That is a really good FAQ page. Thank for the link.
RE: What is the rule of thumb for CRN number registration?
Always helpful. Some (maybe many) see them as an impediment but I regularly recieved comments that manufacturer's felt the input from ABSA on their designs made them better.
RE: What is the rule of thumb for CRN number registration?
RE: What is the rule of thumb for CRN number registration?
RE: What is the rule of thumb for CRN number registration?
EJL
RE: What is the rule of thumb for CRN number registration?
-SLH
AEUB has a document for determining jurisdiction. I've never looked at it because I've never needed it, but it should be here:
http://ww
(if that doesn't work ABSA has a link on their webpage)
Orig message
zakk (Mechanical)
24 Jul 07 13:39
You also need to determine if the equipment is for a pressure vessel or piping application. ABSA's mandate only covers pressure vessel applications and do not consider piping. I fact, I do not think they even have a copy of CSA Z662. I could be wrong on this, but Design Survey isn't really up on piping codes (great on BPVC though).
RE: What is the rule of thumb for CRN number registration?