Flange leakage check Code requirements in B31.3 and EN 13480

[Learning_1]

Hi All,

This is my first post here. Pls bear me if i break any protocol.

I am working on a Piping project which requires EN 13480 and PED to be followed. As far as flange leakage is concerned for ASME, I know there are various methods like 1. pressure equivalent method 2. ASME VIII Div 1, Annex 2 etc. However, I couldn't find any guidelines or references in B31.3 which guides us on when and how to carry out Flange leakage check. I know how to perfom this test but 1.)where this requirement comes from in form of clauses? 2.) I want to implement this for EN13480 piping so I wanted to find some clauses in EN13480 and eventually proper method to carry out flange leakage check.

I spent a lot of time but couldn't find the answers. can you please help on this?

 

[TGS4]

In ASME B31.3 (2022 Edition), look to Appendix F, under F312.1(a)(2), keeping in mind the notes in F312.1(b).

Please don't use ASME Section VIII, Division 1, Appendix 2.

 

[r6155]

More infomation?
Diameter, material, design pressure/temperatures, flange Class, gasket and bolts material, torque...etc.

Regards

 

[Learning_1]

Thank you for your replies. I can find a clause in B31.3 F312.

However, I am not able to find the guidances in EN 13480 specifically. But I guess EN 13480 Annex D might help. Also EN 1591-"Design rules for gasketed circullar flange Connections" may help.

Basically I was also looking for a few criteria which helps decide whether I should go for flange leakage check or not?

For example, Class 600 and above, Catagory M fluid. etc. I think I should develop similar guidelines for EN 13480 piping system if not readily available.

Thank you once again. If you find anything please share the knowledge.