Dear All,
I was trying to understand the code requirement for a welded tube to tube sheet joint.
Then I stumbled upon a term in UW-20.2 (b), "design strength for partial strength joint".
As per my limited code knowledge, code does not specifically say how to calculate this term.
Code says...
Details and Diff.pressure is provided by the filter vendor.
@r6155,
I am not able to understand what you are trying to say here.
If you are trying to help, please respond to the following,
1. is there any code reference for a sandwiched support plate (as shown above fig)?
2. As the...
@georgeverghese,
Thanks for the response, This was the Max. Diff Pressure advised by the filter vendor but I do agree to your logic.
Filter element busting pressure should be taken in to account.
I Hope The way I have addressed this issue is right.
If any have you guys have come across similar...
@SnTMan
Yes sir, the description of that term needs to be changed to something else.
It is indeed confusing.
@r6155
If you could give me any code reference or any guidance on how code has addressed similar scenarios (item-11, in the drawing), then that would be a real help, rather than...
Hi Guys,
Do we have to perform any additional calculations when two body flanges sandwich a support plate for filters?
The app-2 calculation was performed for body flanges.
and support plates were evaluated for Differential pressure and cartridge weight.
As the configuration is similar to...
Query 1: In order to waive off the Visual inspection of welded joints as per UG-99(g),
Does all the para of UG-99(g) (1), (2), (3) & (4) need to meet?
Or meeting para of UG-99(g) (3), (4) waive Visual inspection of welded joints.
Query 2: Dose UG(99)(g)(2) can be substituted with 100% RT as...
@cbPVme and @marty007
Thanks for your valuable inputs.
It is clear that these are no longer standard flanges, Appendix 2 calculation and U-2(g) will be required to code stamp these vessels.
Dear Engineers,
One of my client has come up with a requirement of using swing bolts instead of normal stud bolts for a filter vessel on ASME 16.5/ 16.47 flanges.
Is the use of swing bolts instead of stud bolts acceptable as per code?
Do we have to perform any additional calculation to meet the...
Thank you all for your valuable input.
@SnTMan has got the question right, After a few discussion and going through the code, I have also concluded to the same.
The segment of shell between the head and base ring need to evaluated using FEA. Non-Mandatory Appendix G(5)(b) gives more insight...
Dear All,
In a heat exchanger, in order to keep the exchanger height as min. as possible, I have proposed the following config.
Where the Shell course (Item-01) with a UG-34(f) flat head (Item-02) is extended and the base plate(Item-03) is welded to it.
one of my colleagues has a comment...
Hi,
Received a requirement to make a Heat Exchanger in the below-shown configuration.
Here both front end and rear end bonnet flanges and bolted to shell body flange and the tube sheet is sandwiched in between them.
I am not able to identify the configuration for this type of heat exchangers...
Hi Guys,
The Question here is whether code restricts welding of a flange directly to a Conical section without knuckle?
Based on my understanding the following are the clauses applicable as per ASME Sec VIII Div-1,
Figure UG-28.1(Notes)- Lays the requirement of the junctures under the...
Hi jmec87,
Thank you so much for such a detailed response. [thumbsup2]
Further, say if we are following exactly the dimensions (including reference dimensions) provided in API-6A for 6B flanges, do we have to do a design?
If we have to do a design, I understand that we have to perform the...
Hi all,
Why are API-6B flanges excepted from API-advisory 6(Design and Development Exclusion under the API Monogram Program), while 6BX flanges are excluded?.
since the 6B flanges are excepted from advisory, what all calculations are necessary to clear API Audit.
is through-thickness (neck...
