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Studded outlet flange material.

Studded outlet flange material.

Studded outlet flange material.

(OP)
Hello ,
I'm having trouble undertanding which material can I use for Flat Flanges witout hub regarding Appendix 2 ou UG-14.
so my question is very simple : Can I use flat plate for theses flanges like studded outlet shown on thoses attachements
(flane on btm head , anf flange on top head)

Thanks.
Laurent.

RE: Studded outlet flange material.

401laurent, plate is permitted for flanges without hubs. Apx 2 does not prohibit this. UG-14 appears to not apply.

Regards,

Mike

RE: Studded outlet flange material.

Forged or rolled bar material is also okay, as I see UG-14(a) does not prohibit the use of bar material for ring flanges. Studded outlet shall be considered as a ring flange.
It is important to know for me how you design studded outlet using Appendix 2? in my opinion studded outlet is out of appendix 2 scope, please share the design method you have adopted

Nasir
Welding Engineer
DESCON ENGINEERING LIMITED
PAKISTAN

RE: Studded outlet flange material.

(OP)
Hi SnTMan,
As you see on drawing attachement, the flanges are cut from plate of 2" thk for the bottom flange and 1.25 " for the top flange for agitator, I like to be sure that the flanges are not formed into a ring as specified in Appendix2-2(d)(2)(a).

As you Know the forging material is more expensisve, and using plate into forming ring is impossible in this case , so direct cutting plate and machining for theses flanges is very economical if it"s not prohibited as you say.
Thanks.

Hi Fizza453,
I khnow that forging material is permitted, but its very expensive.
for design calculations, I used Appendix 2.

Thanks.
Laurent.

RE: Studded outlet flange material.

Fizza453, I would consider this a loose ring type reverse flange under Apx 2 and design accordingly. Extra material may be added to contribute to opening reinfocement if desired.

Reagrds,

Mike

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