• Welcome to The Building Code Forum

    Your premier resource for building code knowledge.

    This forum remains free to the public thanks to the generous support of our Sawhorse Members and Corporate Sponsors. Their contributions help keep this community thriving and accessible.

    Want enhanced access to expert discussions and exclusive features? Learn more about the benefits here.

    Ready to upgrade? Log in and upgrade now.

Which Fitting-Connection is Code Compliant?

The one on the right is compliant. That’s a sealing ring.
The one one the left is a violation of 110.3(B). Meyers hubs are only listed for use with RMC and IMC.

What do I win?
 
BTW, it's a Myers hub, not Meyers hub. Because of my surname it's something I notice. :D

Back to the topic.
 
It seems to me that a metal flat washer in contact with the metal can is not water tight.
 
I can see the rubber on top.....why don’t I see the rubber underneath the washer? Sorry but it doesn’t resemble a sealing ring.

This really looks like a a generic flat washer with a rubber washer on top.... it’s Jeff’s picture so I’ll take his word for it but I’ve not seen one like this.

This is a picture that I took three days ago. The worker insisted that the fitting is raintight. I had him back off the lock ring and sure enough there's a gasket. It fits into the knockout perfectly and accomplished nothing. Had it been visible after installation it would have still not worked.





This is a sealing ring:



This is the rubber washer similar to the one in my picture:



I guess I'm just not convinced that Jeff's picture is a sealing ring.
 
Last edited:
That ring came from my shop when Jeff was working with us.
I can assure you it’s a listed sealing ring with rubber on both sides.
Just a different manufacturer than the one in your pic.
 
That ring came from my shop when Jeff was working with us.
I can assure you it’s a listed sealing ring with rubber on both sides.
Just a different manufacturer than the one in your pic.
Well then, you I can trust.....but hold on.....Jeff called it a flat washer and you knew it was a sealing ring that doesn't look like a sealing ring....that's insider information. o_O

Well alrighty then, it's game on Jeff ;)
 
Last edited:
Stay on em, ICE their in cahoots with each other!

I had a 50/50 chance and I picked the wrong one!
 
Well then, you I can trust.....but hold on.....Jeff called it a flat washer and you knew it was a sealing ring that doesn't look like a sealing ring....that's insider information. o_O
Well alrighty then, it's game on Jeff ;)

This is the washer:
raco-conduit-fittings-2455-64_1000.jpg
 
  • Like
Reactions: ICE
Isn't this what was used in your photo?

1211_1200.jpg
That is a possibility. It makes better sense than a lock ring and a gasket. Is this yellow gasket meant to fit inside the KO hole and the metal is meant to bite in and act as a lock ring? When I first saw it I thought that it will not repel water. I could see a gap between the minute bit of rubber that I could see and the can so I assumed that it was no good. If I was wrong, I'm happy to give them a call and take back the correction. I'll just tell them that you started it.

Ya ...no...there was a gap
 
Last edited:
That is incorrect. I'll look for another picture.

I clicked on your picture and zoomed in. On the pic it looks like the sealing locknut and a sealing ring. If there was a gap all they needed to do was to tighten it. BTW, the locking nut is sometimes just on the inside. It only needs to be sealed from one side.

On another note, I will repeat, it does not appear as though the penetration is above the level of live parts.
 
Back
Top