Different Raised Face Diameter
Different Raised Face Diameter
(OP)
Hi all,
Good day to all the engineers,
May I know that whether are we allowed to connect 2 raised face flanges with different diameters of hub or raised face diameter? For example, the nominal pipe size is 2", the two diameters of the raised face are 84 mm and 96 mm respectively.
If yes, what are the types of gasket that I should use in this case and how should I determine the dimension of the gasket? Is it based on the larger or smaller diameter of the raised face?
Thank you for your time!
Good day to all the engineers,
May I know that whether are we allowed to connect 2 raised face flanges with different diameters of hub or raised face diameter? For example, the nominal pipe size is 2", the two diameters of the raised face are 84 mm and 96 mm respectively.
If yes, what are the types of gasket that I should use in this case and how should I determine the dimension of the gasket? Is it based on the larger or smaller diameter of the raised face?
Thank you for your time!





RE: Different Raised Face Diameter
If they are B16.5 flanges (rating?) they appear to be out of spec.
RE: Different Raised Face Diameter
Have you got more details ( flange code, pressure rating, dimensions or a photo).
In general dissimilar anything is a bad idea when it comes to flanges so I would say not allowed and get two the same to the same code.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Different Raised Face Diameter
RE: Different Raised Face Diameter
http://www.engineersedge.com/hardware/flange-ansi-...
RE: Different Raised Face Diameter
It is the same diameter for all pressure classes so isn't dimensioned in the other dimensions for different pressure classes.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.