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    Stoker's Avatar
    Stoker Posts: 8, Reputation: 1
    New Member
    		  
    #1

    Jun 7, 2006, 04:15 PM
    Copper to cpvc threaded connections
    Hi,
    Can I connect cpvc threaded pipe adapters directly to corresponding male or female threaded copper adapters, and, using suitable pipe dope, get good reliable joints? I know there are threaded copper-to-glue cpvc conversion connectors available, but I have on hand a number of copper and cpvc threaded fittings.

    Thank you in advance.
    Walt
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #2

    Jun 7, 2006, 04:28 PM
    Quote Originally Posted by Stoker
    Hi,
    Can I connect cpvc threaded pipe adapters directly to corresponding male or female threaded copper adapters, and, using suitable pipe dope, get good reliable joints? I know there are threaded copper-to-glue cpvc conversion connectors available, but I have on hand a number of copper and cpvc threaded fittings.

    Thank you in advance.
    Walt
    No problem Walt,

    Yes you may. I would use teflon tape instead of pipe sealant. I have converted to and from PVC and copper for years with no bad results using threaded connections. Good luck, Tom
    doityourselfernorm's Avatar
    doityourselfernorm Posts: 1, Reputation: 1
    New Member
    		  
    #3

    Mar 7, 2010, 12:28 PM
    I have found that threaded connections with teflon tape work great for cpvc to copper connections in cold water lines, but hot water lines tend to work loose eventually from temperature fluctuation. I have seen this occur in three areas of my home.
    Do It Yourselfer Norm
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