[Gian Mario Tagliaretti]

Something that always puzzled me… what’s the difference, if any?

Discussion

[James Pennock]

Where did you get these two ‘names’ (Weldoflange and Nipoflange)?
I have looked at both the Bonney-Forge website and the WFI website and these names do not appear.

Did you see this somewhere or did someone say you these names?

[Gian Mario Tagliaretti]

[quote=”Jop” post=8757]Where did you get these two ‘names’ (Weldoflange and Nipoflange)?
I have looked at both the Bonney-Forge website and the WFI website and these names do not appear.[/quote]

Well to be honest, during my professional career as piping engineer first and also now working in a software house that produces a piping material management system, I’ve encountered those many times in the piping classes.

[quote=”Jop” post=8757]Did you see this somewhere or did someone say you these names?[/quote]

Most recently I’m working on maintaining a database for one of our customers and one of their sub-contractors is asking to add both objects into the “object definition”, in my opinion those two objects are the same piece, or a olet-pipe-flange all forged from one piece of metal, mostly used for thermowell installation, so I wonder if you share my opinion or not.

A simple search on google will just confuse my ideas…since it’s not an object really covered by internation standards (as far as I know), every manufacturer use one name or the other or, in some cases, both.

Kind regards
Gian Mario

[James Pennock]

For the purpose you describe I suggest the following.
Follow the pattern already established by the other O-Let fittings. Recognize the saddle shape as the common O-Let feature and the other end as the changeable feature.
– Weld-O-Let – has a but weld connection
– Sock-O-Let – has a Socket-Weld connection
– Thread-O-Let – has a (female) Threaded connection
– Nip-O-Let – has a (male) Threaded connection
– ElboLet (or elbolet) – has a base to fit on an Elbow and either a Butt-Weld, Socket-Weld or a Threaded outlet
– Latrolet – has a shaped base to fit on pipe and either a butt-weld, socket-weld or a threaded outlet
– Valve-O-Let – has a Gate Valve on the end (normal used for Vents, Drains, Instrument connections, etc.)
With this pattern I suggest you call it:
– Flange-O-Let – has a Flange connection
This gives consistency to the issue.

[Author]

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