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Clough · Jan 25, 2009, 06:11 AM

Joining a PVC pipe with a chrome plated steel one. Is this possible? If so, how, please?

I'm referring to joining two pipes together, that fit right into each other, so that they're sealed in some way without using some sort of threads.

If using threads of some sort is the recommendation, then, that's okay.

Just looking to see if it's possible, and maybe legal, according to plumbing code, to do such a thing.

Thanks!

massplumber2008 · Jan 25, 2009, 06:26 AM

Hi Clough...

Joining a chrome plated pipe to PVC pipe can only be done using a ferco coupling or a shielded clamp... see pictures. These clamps are not legal in terms of plumbing code, but are often used for repair work.

What does the chrome pipe connect to? As a plumber I would probably remove the pipe back to the threaded area and transition over to correct pipe and fittings that way.

Let me know...

MARK

Clough · Jan 25, 2009, 06:44 AM

Thanks, Mark!

It's for an upstairs, very small bathroom sink.

I cut off the chrome plated pipe that comes out of the wall at the flange(?) where it curved down to and adjoins the P-Trap a number of years ago.

Things got rusted or corroded, not sure which. But, I needed to cut it off.

Used the plastic or PVC P-Traps that anyone can get from any home hardware store. Has worked great! But, it's not something that's permanent.

Leaks eventually occur because of people bumping into the cabinet. That jostles the plumbing.

Have wanted to use the type of clamps that you describe, but there's the threads on the cheap P-Traps that I've purchased that get in the way.

Haven't been able to locate a P-Trap that doesn't have the threads.

I have no problem sweating pipe. But, I'm no plumber! Can do simple repairs. Have to do research in order to do the major things...

Thanks!

speedball1 · Jan 25, 2009, 06:52 AM

Sorry Clough, we were posting at the same time. I'm assuming that we're referring to a chrome trap connecting to a PVC wall stubout. Another way, and this is how we do it in my area, is to use a compression fitting,(see image) in the proper size. This gives a cleaner more professional look to your installation.
It's a different story if the stubout's copper. To connect a Chrome trap to a copper stub out there are two methods that you can use.
1) You may use a brass Desanko, (see image) as a compression fitting, **or**
2) Again, and this is how we do it in my area, we take a file and file off the chrome from the trap tail down to the brass and solder it in.

there's the threads on the cheap P-Traps that I've purchased that get in the way.

What threads on what type of trap? Regards, Tom