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  • Help - Need to Replace Valve

    I need to replace the hot water shut off valve under the sink that has the valve knob broke off.

    The two attached pictures show the valve.

    Can someone identify the type of valve I need for a replacement
    and
    the steps and equipment required

    I was told it was an 1/2 (inlet) x 3/8 compression angle stop.

    Something like :

    http://www.lowes.com/lowes/lkn?action=productDetail&productId=100844-143-K2048ABN&lpage=none

    Also, is it true what I have read that replacing this valve is a bit tricky because once the ferrule is tightened, it may be on for good and may have to be cut off if a new valve is installed

    thanks
    Attached Files

  • #2
    Re: Help - Need to Replace Valve

    It appears that you were told right, but you have plenty of copper that can be cut off.

    Remove the present valve, cut the copper pipe off behind the ferrule and install a new one. It should be that simple.

    IF you run into trouble, call a plumber

    Comment


    • #3
      Re: Help - Need to Replace Valve

      http://www.grainger.com/Grainger/items/1RWB9

      You got the right idea with the angle stop but you link description is a screw on, not compression. Compression is fine, just use a back up wrench when tightening. I apply some teflon paste to the threads to get a tighter fit but this is optional. The same angle stops are sold at lowes and hd, I just used grainger because of picture clarity.
      Buy cheap, buy twice.

      Comment


      • #4
        Re: Help - Need to Replace Valve

        I would recommend 1/4 turns and remember to turn the water off at the house main and drain the system before you remove the stop. In your case, I would just cut the copper back, no need to worry about pulling the ferrall and all.

        It sounds funny, but I had an emergency call where the guy pulled his off in the bathroom for the toilet and didn't turn the water off until he figured out it should have been off.
        sigpic

        Robert

        Comment


        • #5
          Re: Help - Need to Replace Valve

          And DON'T buy another POS with the plastic stem, get one that is all brass.
          "When we build let us think we build forever. Let it not be for present delight nor for present use alone. Let it be such work that our descendants will thank us for, and let us think, as we lay stone upon stone, that a time is to come when these stones will be held sacred because our hands have touched them, and that men will say, as they look upon the labor and wrought substance of them, "See! This our fathers did for us."
          John Ruskin (1819 - 1900)

          Comment


          • #6
            Re: Help - Need to Replace Valve

            Originally posted by Bob D. View Post
            And DON'T buy another POS with the plastic stem, get one that is all brass.

            bob, you must be dating yourself. those were the good old days.

            this is a brasscraft angle stop and they haven't used a brass stem in years.

            the 1/4 turn are the way to go now.

            rick.
            phoebe it is

            Comment


            • #7
              Re: Help - Need to Replace Valve

              Originally posted by PLUMBER RICK View Post
              bob, you must be dating yourself. those were the good old days.

              this is a brasscraft angle stop and they haven't used a brass stem in years.

              the 1/4 turn are the way to go now.

              rick.
              Guess you are right there Rick, glad I got a few from the last house I renovated then that should last me until I am gone. I'll leave the remainder to ya in my will if you want them, along with my caulking irons. I've got a few that I modified for working in tight spots and such.
              "When we build let us think we build forever. Let it not be for present delight nor for present use alone. Let it be such work that our descendants will thank us for, and let us think, as we lay stone upon stone, that a time is to come when these stones will be held sacred because our hands have touched them, and that men will say, as they look upon the labor and wrought substance of them, "See! This our fathers did for us."
              John Ruskin (1819 - 1900)

              Comment


              • #8
                Re: Help - Need to Replace Valve

                Originally posted by Bob D. View Post
                Guess you are right there Rick, glad I got a few from the last house I renovated then that should last me until I am gone. I'll leave the remainder to ya in my will if you want them, along with my caulking irons. I've got a few that I modified for working in tight spots and such.
                no need for you to pass

                but there are a few here looking for some caulking irons

                i actually installed the real high end kohler angle stops at my toilets because they look nice with cross handles.

                they do work nice when i test them. probalbly the only praise you'll hear from me on kohler

                what i have seen over the years with these acetal? stems is that the chlorine in the water will rot them off at the packing nut.

                hopefully the newer 1/4 turn ball valve stops won't come to

                bite us in the .

                rick.
                phoebe it is

                Comment


                • #9
                  Re: Help - Need to Replace Valve

                  Originally posted by stanj View Post
                  I need to replace the hot water shut off valve under the sink that has the valve knob broke off.

                  The two attached pictures show the valve.

                  Can someone identify the type of valve I need for a replacement
                  and
                  the steps and equipment required

                  I was told it was an 1/2 (inlet) x 3/8 compression angle stop.

                  Something like :

                  http://www.lowes.com/lowes/lkn?action=productDetail&productId=100844-143-K2048ABN&lpage=none

                  Also, is it true what I have read that replacing this valve is a bit tricky because once the ferrule is tightened, it may be on for good and may have to be cut off if a new valve is installed

                  thanks
                  You need a BrassCraft KTCR19. This is the 1/4 Turn ball valve replacement, as opposed to a CR19 which has a plastic stem.
                  You have 2 options for installation, if the original valve was installed improperly, the ferrule may come off by wiggling the nut with pliers and pulling simultaneously, if it doesn't you need a puller.
                  Or, like the others mentioned, just cut the pipe further back. Use 2 large Crescent wrenches, apply pipe dope or teflon paste to the ring & threads, and tighten till the threads are just about buried.

                  While you're at it, get rid of those vinyl supply lines and get yourself some braided ones. BrassCraft B1-9AF is the part number for a 9" flex line. Substitute 12,16,20,30 in place of 9 for your proper part # length.



                  Originally posted by Bob D. View Post
                  And DON'T buy another POS with the plastic stem, get one that is all brass.
                  Originally posted by PLUMBER RICK View Post
                  bob, you must be dating yourself. those were the good old days.

                  this is a brasscraft angle stop and they haven't used a brass stem in years.

                  the 1/4 turn are the way to go now.

                  rick.
                  FYI, according to my local BrassCraft Rep., the valves with brass stems are still available under special order. I seriously thought about ordering these before the came out with the "KT (Kwik Turn)" Series.
                  Some of the plastic stemmed valves would only last several years depending on the geographical area.
                  If you'll notice, the integral stops made by BrassCraft have brass stems in them, Such as the DRS44M (1/2" male sweat X 1/2" female sweat) which I use to add stops to a shower valve without factory ones.

                  Tracy
                  .

                  Comment


                  • #10
                    Re: Help - Need to Replace Valve

                    wow..

                    thanks for all of the quick input....

                    sounds like you all have done this for a long time

                    Question

                    At http://www.homeandbeyond.com/prod-0118599.html

                    TheBrassCraft KTCR19 shows as 5/8" O.D. Compression x 3/8" O.D. as does

                    http://www.grainger.com/Grainger/items/1RWB9


                    Is this 5/8 x 3/8 the one I need or do I need a 1/2x3/8 compression

                    How can you tell size is correct by the picture (seems like a close match)?
                    My guess is you all have seen enough to know

                    Good idea on the vinyl supply lines

                    thanks again

                    Comment


                    • #11
                      Re: Help - Need to Replace Valve

                      Originally posted by stanj View Post
                      wow..

                      thanks for all of the quick input....

                      sounds like you all have done this for a long time

                      Question

                      At http://www.homeandbeyond.com/prod-0118599.html

                      TheBrassCraft KTCR19 shows as 5/8" O.D. Compression x 3/8" O.D. as does

                      http://www.grainger.com/Grainger/items/1RWB9


                      Is this 5/8 x 3/8 the one I need or do I need a 1/2x3/8 compression

                      How can you tell size is correct by the picture (seems like a close match)?
                      My guess is you all have seen enough to know

                      Good idea on the vinyl supply lines

                      thanks again

                      Vinyl supply lines to me are junk, I have seen many fail. I recommend the braided stainless steel supply lines, and you need a 1/2" copper x 3/8 compression stop and you wil be all set.
                      sigpic

                      Robert

                      Comment


                      • #12
                        Re: Help - Need to Replace Valve

                        Why are we still seeing the 3/8" compressionX1/2" nut being used.Is there an advantage over the 1/2"nutX1/2" nut flexes.I have only used the 3/8" when the existing angle stop dictated.

                        Comment


                        • #13
                          Re: Help - Need to Replace Valve

                          Originally posted by drtyhands View Post
                          Why are we still seeing the 3/8" compressionX1/2" nut being used.Is there an advantage over the 1/2"nutX1/2" nut flexes.I have only used the 3/8" when the existing angle stop dictated.

                          3/8" nuts are making a comeback because the faucets are now coming out with 3/8" stainless supply lines already attached to the faucet, no need for an adapter
                          sigpic

                          Robert

                          Comment


                          • #14
                            Re: Help - Need to Replace Valve

                            Originally posted by westcoastplumber View Post
                            3/8" nuts are making a comeback because the faucets are now coming out with 3/8" stainless supply lines already attached to the faucet, no need for an adapter
                            Excellent point

                            Note to self...spread faucets to instalation location and install according to fixture requirements.

                            Comment


                            • #15
                              Re: Help - Need to Replace Valve

                              You have to read the full description of the item. Westcoast is right on what size angle stop you need-1/2x3/8. But copper is measured and described by inside diameter and is 1/2" ID but 5/8" outside diameter. This is why the grainger description might be confusing. Go to lowe's, hd, whatever and grab an angle stop and take it to the copper pipe and slip it over 1/2" pipe to make sure you got the right size.
                              Buy cheap, buy twice.

                              Comment

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