Conflat Flange

[sarb]

Does anyone have experience in designing and/or qualifying CONFLAT flanges to ASME, Section VIII, Div. 1, requirements for positive pressure?

 

[Bobfromoh]

What's a CONFLAT flange?

 

[pennpoint]

Bobfromoh

Used on very high vacuum vessels and systems.
Sealed with soft copper ring gaskets.

FYI

http://www.n-c.com/Page.asp?NavID=37

Regards

pennpoint

 

[unclesyd]

You might want to look at the following website. We used quite a few of their gaskets and lot of their flanges. We used the both for pressure and vacuum applications.

http://www.helicoflex.com/catalogs/

 

[unclesyd]

Forgot to include this one.

http://www.thermionics.com/products/fittings.shtml

 

[Bobfromoh]

So CONFLAT is the product name!
It sounds like the flanges are not made to a "B16" type standard? These flanges are just evaluated with the pressure/temperature curves.

It seems like this flange could be evaluated with ASME Section VIII Div. 1 Appendix 2 procedure for nonstandard flanges.

However, if it's going to be used on an ASME vessel, then the material has to be a code material complete with documentation.

So, yes there is a way to evaluate it but then how will the flange be used?