Concrete Tight Fittings For EMT

[mstrlucky74]

Never had to use these for EMT. How are they different? I imagine they are more expensive. I tried to look on Bridgeports site but did not find.

 

[mgookin]

If the only requirement is concrete tight, you have plenty to pick from.
http://www.cooperindustries.com/con...fs/cp-catalog-commercial-fittings-section.pdf

Ctrl+F in that document for "concrete" yields 16 hits.

 

[mstrlucky74]

If the only requirement is concrete tight, you have plenty to pick from.
http://www.cooperindustries.com/con...fs/cp-catalog-commercial-fittings-section.pdf

Ctrl+F in that document for "concrete" yields 16 hits.

Thanks!!!

 

[mgookin]

Thanks!!!

You're welcome. :thumbsup:

 

[jumper]

Duct tape.:angel:

 

[don_resqcapt19]

Duct tape.:angel:

Most set screw couplings say on the box that they are concrete tight when taped.

 

[jumper]

Most set screw couplings say on the box that they are concrete tight when taped.

Yep, but it can be tricky since the code says approved and not listed.

My experience is that most inspectors accept this, but a few have qualms.

 

[don_resqcapt19]

Yep, but it can be tricky since the code says approved and not listed.

My experience is that most inspectors accept this, but a few have qualms.

Yes, and most don't comply with the listing requirement. The following is from the UL Guide Information for "Conduit Fittings (DWTT).

A fitting that is taped completely (from the raceway to the box, or raceway to raceway) is concrete-tight when the product carton is marked "CONCRETE-TIGHT WHEN TAPED."

However if you do that the inspector/AHJ should accept it as it part of the listing.

 

[mstrlucky74]

Most set screw couplings say on the box that they are concrete tight when taped.

How about the connectors?

 

[don_resqcapt19]

How about the connectors?

Same thing...taped from box to raceway.