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  • internal pipe wrench

    anyone know who makes or where i can get a (possibly 15) internal pipe wrench for 4" pipe

  • #2
    i don't even want to think why you would need 1- 4'' internal wrench

    15 wrenches, now i'm curious.

    please post what is the application and i'm sure that someone can come up with an idea to solve your dalema

    rick.
    phoebe it is

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    • #3
      This has to be a gag. If not I'm interested in the follow-up.
      the dog

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      • #4
        here ya go

        I work for a company that does environmental compliance for gas stations. Some of the pipe we work with is 4". When installed, sometimes it is torqued way beyond requirements and we cant get it with a chain wrench and cheater using 2 people. We cant use a traditional or off set wrench, because its in a 10 inch wide hole, and we cannot damage the threads.

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        • #5
          any other support would be helpful, just remember, working in contact with gasoline.

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          • #6
            there used to be an offset chain wrench designed for this application in a hole. i don't think it's made anymore.

            a good machine shop can duplicate an internal wrench.

            rick.
            phoebe it is

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            • #7
              Ok. Now it makes sense.

              No one I know of makes an internal 4" wrench, and it would probably not be functional if they did.

              What I have used in my underground tank applications is an adjustable 3/4" drive chain wrench available from McMaster-Carr. This will require both the wrench, a 3/4" drive ratchet (although I would suggest a breaker bar), and a 3/4" drive extention.

              You can find all of it at http://www.mcmaster.com
              the dog

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              • #8
                have that chain wrench, and still cant get it loose using 2 people

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                • #9
                  Originally posted by bkeys
                  have that chain wrench, and still cant get it loose using 2 people
                  Can't do it because of torque, or space around the pipe?
                  the dog

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                  • #10
                    Re-read your reply.

                    The answer is lack of torque. An internal wrench will not help you. Try a cheater bar. If not jack-hammer the area and cut it out.

                    Biggest suggestion: Hire real pipefitters.
                    the dog

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                    • #11
                      Originally posted by plumbdog10

                      Biggest suggestion: Hire real pipefitters.

                      here we go again

                      but you have a point
                      Charlie

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