My experience with cpvc is not good in fact i hate any plastic pipe to include pex.
Copper to cpvc compression fitting.
Sharkbite pvc fitting uip4008a inch x inch cts pvc connector to copper pex cpvc hdpe or pe rt for potable water 4 8 out of 5 stars 97 12 54 12.
Model 1603341 15 67.
Scrape away any burrs from the copper pipe and rub a drop of dishwashing liquid on each end of the copper to act as a lubricant.
Cpvc compression fittings are also available for in line connections when adding a new service to an existing line.
Warning avoid eating smoking or any other hand to mouth contact while soldering copper or using cpvc solvent and glue.
The rubber washer should flex enough to keep the connection sealed.
Fit the compression fitting onto the pipe or fit the pipe into the fitting as applicable until the pipe stops inside the fitting.
Wrot copper cup x fipt adapter fitting.
This isn t the best way though because you can t tighten the fitting if it leaks.
Bevel the edges of the pipe with a file.
Push on a cpvc compression fitting.
Slide both pieces down so they are 1 inch or so from the end of the pipe.
Here s a video on how to change back to copper no matter the make up i.
Slip the compression nut from the compression fitting onto the pipe then slip on the compression ring.
Cpvc lead free slip x copper alloy compression union 1 model c4733 7 lf.
This can be a problem when joining cpvc to copper especially when using threaded connections.
You can connect pvc or cpvc to copper in several ways.
Plastic and metal expand and contract at different rates.
Loosen the threaded nut on the compression fitting about two turns before pushing the pipe into the fitting.
One option is to use union adapters.