Rigid compression fitting

[bluedog225]

Can I use this fitting to transition from 2 inch pvc conduit coming out of the ground to rigid metal going up the wall? Or do I need to come up threaded and join with a threaded coupling?

This would be a lot easier if there is not a downside. Do I need to seal the flexible rings inside the fitting with silicone grease or just crank them down?

Thanks

 

[Chuckster in NJ]

Why not just use a threaded coupling on the GRC and transition to PVC?……… Much better job.

BTW! Is this compression coupling UL listed for the application?

 

[mike93lx]

Don't worry about sealing it well. Underground conduit will end up with water in it anyway.

I'd do a male threaded terminal end, and then a female.on the rigid. It's mainly a plumbing thing, but don't screw metal into plastic.

 

[Wrench97]

How do you replace it in 5 years when the center rusts out?

 

[mike93lx]

How do you replace it in 5 years when the center rusts out?

Galvanized, above ground?

 

[mm08822]

Paint it

 

[Wrench97]

Right at ground level chinesim?

 

[mm08822]

Or transition to schedule 80 Pvc. Could even have an expansion sleeve.

 

[bluedog225]

I’d like the additional protection of the rigid metal conduit above ground at this location. I can have a piece cut and through the blank if I need to.

Then screw the plastic into the metal if I’m understanding correctly.

The metal will be above ground by a couple inch s with a good draining slope away from the building. I’ll probably put some steel hat channel over the junction.

 

[yatg]

BTW! Is this compression coupling UL listed for the application?

That particular coupler is for water.
You can tell by the black rubber gasket and the "restrain pipe" warning.
The pipe has a tendency to work its way out of the coupler.

There are 2" RMC couplers in a similar style.

 

[Norcal]

The fitting shown by the OP is a plumbing fitting, hence not a listed product.

 

[bluedog225]

That particular coupler is for water.
You can tell by the black rubber gasket and the "restrain pipe" warning.
The pipe has a tendency to work its way out of the coupler.

There are 2" RMC couplers in a similar style.

Thanks!

 

[wyliesdiesels]

The fitting shown by the OP is a plumbing fitting, hence not a listed product.

https://www.homedepot.com/p/Southland-2-in-Galvanized-Pressure-FPT-x-FPT-Compression-Coupling-160-008HC/100123930

 

[wyliesdiesels]

wrong connector OP. thats for plumbing- the FPT to FPT gives it away. female pipe thread to female pipe thread

I dont think youll find an NRTL listed connector that is for transitioning from PVC to rigid, but ive been wrong before...

 

[Bert_]

Just use an female adapter. If you want rigid, I would make the transition below ground. That way there is no exposed plastic.

 

[PCustoms]

Has anyone mentioned, or quoted someone mentioning, that is a plumbing fitting?

 

[mike93lx]

I’d like the additional protection of the rigid metal conduit above ground at this location. I can have a piece cut and through the blank if I need to.

Then screw the plastic into the metal if I’m understanding correctly.

The metal will be above ground by a couple inch s with a good draining slope away from the building. I’ll probably put some steel hat channel over the junction.

Curious on what's driving the damage concern. Lawnmower? Vehicles?

If it can be hit hard enough to damage the conduit, the connection to pvc will break and/or the connection to the box/lb above will.

Is there a better way to protect like a small bollard or thicker piece of pope as a sleeve?

Oh, and I think those fittings are for plumbing, but I'm not sure.

 

[Dagny]

Is the wire already in?