(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 5 of 5

Thread: Compression Fitting

  1. #1

    Default Compression Fitting

    I read an article that recommended putting pipe joint compound all over the ferrule when installing a compression shut-off valve. Is that a good recommendation?

    Also, does the supply line copper tubing have to be inserted all of the way into the shut-off valve or can it be partially inserted?

    Thanks,
    Bertman48

  2. #2
    In the Trades Bob NH's Avatar
    Join Date
    Oct 2005
    Location
    New Hampshire
    Posts
    3,307

    Default

    The copper tubing should be inserted all the way to ensure proper mechanical alignment and resistance against bending. Otherwise, it can bend and the ferrule won't always seal properly and permanently.

    The pipe dope contans a little oil that will cut down the friction between the nut and the ferrule. It usually isn't going to hurt if you don't get carried away. On the other hand, it is not a magic potion to fix a misaligned or overtorqued fitting.

  3. #3
    Plumber plumber1's Avatar
    Join Date
    Aug 2005
    Location
    Florida
    Posts
    1,423

    Default

    If you want to use something, a little grease could help........

  4. #4
    Plumber jimbo's Avatar
    Join Date
    Aug 2004
    Location
    San Diego
    Posts
    9,001

    Default

    Plumbers grease, a little 3-in-one oil, or some dope are all good to prevent future galling. I do like to use teflon paste. I would no use some of the "stiffer" non-teflon pastes, as some of then actually take a set over time.

  5. #5
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,209
    Blog Entries
    1

    Default


    Sleeve puller

    At the most, I use a light spray oil on the threads.
    Most of the time, I don't even do that.

    I replace compression stops all the time.
    Some use more than that, but I never have.

    Compression fittings work well.
    They are one of the fastest methods around, and they still allow for replacement with a sleeve puller, which I have in the tool box.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •