Purchasing Raw Material per ASME
Purchasing Raw Material per ASME
(OP)
Hi Guys,
We are going to buy some fittings and flanges for a job based on Section VIII.
I want to know when I have for example an ASME B16.5 flange or an ASME B16.10 fitting. it shall be marked on the item we are going to buy? or we need to have any certificate regarding that from the vendor?
If we have any b16.5 150# flang at all which it is not as per ASME and we cannot use for our vessel?
Thanks
We are going to buy some fittings and flanges for a job based on Section VIII.
I want to know when I have for example an ASME B16.5 flange or an ASME B16.10 fitting. it shall be marked on the item we are going to buy? or we need to have any certificate regarding that from the vendor?
If we have any b16.5 150# flang at all which it is not as per ASME and we cannot use for our vessel?
Thanks





RE: Purchasing Raw Material per ASME
You need both parts to have a compliant component.
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P.E. Metallurgy, Plymouth Tube
RE: Purchasing Raw Material per ASME
"Based on Sec VIII". Is it to be stamped or not?
Any flange meeting B16.5 is usable under Sec VIII, Div. 1. You have to insure the proper rating class is selected.
B16.10 appears to be a dimensional standard for valves, not fittings.
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Purchasing Raw Material per ASME
RE: Purchasing Raw Material per ASME
SnTMan,
I meant B16.9 sorry.
You know, in our stock I see some flanges without any toing about standard just marked as 150# RF
Some have marked like this: B16 150# RF
Some like this: B16.5 150# RF
And some completely like this: ASME B16.5 150# RF
It makes me confused. The last one should be perfect but what about the others?
If I have to have any certificate from the vendor about the dimensional standards. I mean there is anything about for example B16.5 in MTRs?
Thanks
RE: Purchasing Raw Material per ASME
RE: Purchasing Raw Material per ASME
RE: Purchasing Raw Material per ASME
Somebody, somewhere has to certify that the flange meets all requirements of the relevant standard. It might be in the form of a Certificate of
ComplianceConformance (COC) from the manufacturer and / or the supplier.Absent this certification, absent traceable MTRs, what you have in stock are some hunks of metal, as regards Sec VIII, Div.1 use.
Regards,
Mike
RE: Purchasing Raw Material per ASME
I'm not sure what you are stating....neither COCs nor MTRs are required for UG-44 parts per UG-11.
RE: Purchasing Raw Material per ASME
These markings alone will meet UG-11(c), and yes, no further paperwork is needed from the standpoint of Sec VIII, Div. 1.
The vessel manufacturer then becomes responsible for the part per UG-11(c)(9).
As you stated, MTRs may be mandated by the customer, and in my class of work always are. Likewise, C of C's are usually required.
The point I was trying to make was that the part in question has to be unquestionably shown to meet the requirements of its' standard, and if it cannot be demonstrated to do so, it is useless.
Sorry for any confusion.
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Purchasing Raw Material per ASME
RE: Purchasing Raw Material per ASME
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Purchasing Raw Material per ASME
I use all of your discussions