What flange is this

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7 years 7 months ago #9166 by Anton
Replied by Anton on topic What flange is this
Agreed JOP.
Maybe a small mixup in terminology?

BOLT IDENTFICATION (from: pipingdesigners.com/contents/tips-tools-...ion-6e-gaskets-bolts )
Machine Bolt:
Machine bolts have a square forged head and requires only one hex nut.

Stud Bolt:
Stud bolts do not have heads. They are completely threaded from end to end and require two hex nuts to install.

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7 years 7 months ago #9173 by dhurst12
Replied by dhurst12 on topic What flange is this
Despite all of the comments about bolts, ground wire, corrosion, etc. I found the answer.

This is an "insert flange" manufactured by American Insert Flange Company.
americaninsertflange.com/

The hub is welded on similar to a slip on flange, but it also has a lap joint flange that is free to rotate.
The hub is usually alloy and the flange ring is carbon steel
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