Connecting CPVC
Friday, December 11th, 2009CPVC is used for hot and cold water supply. It is cheaper to but than copper and it is just as durable. It also withstands high temperatures and pressure in the supply system. It’s easy to cut with a hacksaw or tubing cutter and connections are easy and quick to assemble. You can get one-step cements for CPVC and eliminate the purple primer. You need to make sure that one-step cements are allowed and that they meet your codes before you use them. Also, check the local codes carefully to determine whether or not you need to use primer.
Step1: DEBURR THE PIPE
Make sure you remove the burrs to ensure even coverage with the primer and cement. After you have deburred, sand lightly with an emery cloth, that way the pipe will sit in the bottom of the fitting.
Step2: COAT THE SURFACES WITH PRIMER IF REQUIRED
Apply an even coat of primer to the pipe and the fitting. Primer will soften the pipe to help seat it and reacts with the cement to make a permanent bond. Make sure you use a purple primer if you are required under code to primer. That way the inspector will be able to easily see it.
Step3: APPLY THE CEMENT AND ASSEMBLE THE PARTS QUICKLY AND CAREFULLY
You will need a dauber to apply an even coat of cement to the pipe and fitting and insert the pipe all the way into the fitting until it stops. Make sure you twist the pipe a quarter of a turn to spread the cement evenly. Hold the pipe for 30 seconds to prevent the heat made by the cement from pushing apart the connections. Wipe off the excess cement with a clean rag.
