May be one of you could help providing information on a supplier for that type of gasket/seals.
Need to replace some of those on a rather  old 'home made' pumping set and cannot find the correct gaskets
Thank you very much
Francisco
Portugal

Take old seals out. On the metal or plastic casing it will have a number google the-number add seal in title. I will get back to you with a name PGA seal company to call can't think of the name. Richie Louisiana

National is the seal company to contact

Hello Ritchie
Thank you very much!
Found a potential source - (Wal-Rich Corporation) and they seem to have those types available
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(These seals have no casing -  more a sort of thick gasketing  - used on proprietary steel couplings for various fluids/temps)
As opposed to the ordinary oil / water lip type seals used on engines/transmissions/Hyd componentry etc
Thanks again
Francisco

You can also buy a sheet of smash out gasket. You use a ball Pene hammer. Lay Haley across flange tape it out. Bolt holes and all. I use this type on reduction gear box rebuilds