Weldoflange and Nipoflange

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9 years 6 months ago #8755 by gianmt
Weldoflange and Nipoflange was created by gianmt
Something that always puzzled me... what's the difference, if any?

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9 years 6 months ago #8757 by Jop
Replied by Jop on topic Weldoflange and Nipoflange
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?

Do it once and Do it Right

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9 years 6 months ago #8768 by gianmt
Replied by gianmt on topic Weldoflange and Nipoflange

Jop wrote: 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.


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.

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


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

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9 years 6 months ago - 9 years 5 months ago #8769 by Jop
Replied by Jop on topic Weldoflange and Nipoflange
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.

Do it once and Do it Right
Last edit: 9 years 5 months ago by Jop. Reason: Added information

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