Ring Joint Flange to RF Flange
Ring Joint Flange to RF Flange
(OP)
All, is there any standard that references bolting blanking (RF Flanges) to ring joint flanges using a full face gasket? ASME or otherwise, I can do a calc using a reduced effective area for a gasket although I am not sure whether ASME allows this.
Any information would be greatly appreciated.
Any information would be greatly appreciated.





RE: Ring Joint Flange to RF Flange
RE: Ring Joint Flange to RF Flange
RE: Ring Joint Flange to RF Flange
I agree with vesselfab, don't mix if you don't have to, but I've used this style gasket with RTJ and RF flanges when I needed a replacement valve in a hurry and RTJ valves were not available.
donf
RE: Ring Joint Flange to RF Flange
Regards,
Mike
RE: Ring Joint Flange to RF Flange
Im realy looking for a basis as to the strength of this mating face.
RE: Ring Joint Flange to RF Flange
Regards,
Mike
RE: Ring Joint Flange to RF Flange
RE: Ring Joint Flange to RF Flange
The sealing element sits on the flange face inside of the ring groove so the groove becomes a redundant feature. The VCS is not fire safe but they have another version called the VCFS which is fire tested and has a secondary backup seal. This version can only be used on larger sizes of RTJ flanges.
I believe they have design reports available and third party test and certification data to validate acceptability to ASME Codes.