Crosscut nipple - pipe dope / teflon?

Discussion in 'General Plumbing Help' started by Matt30, Feb 15, 2018.

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  1. Feb 15, 2018 #1

    Matt30

    Matt30

    Matt30

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    I installed a set of Hansgrohe wall mounted faucets today. It came with a crosscut nipple for the water supply. It doesn't thread like a regular nipple, it's got a lot of bite when you thread it in. Nowhere in the instructions did it mention teflon or thread sealant, and it's my first experience with this nipple.

    To be safe, I put some pipe dope on the threads, I haven't yet turned the water on, that will be tomorrow. If this leaks in the wall, I will have no way of knowing until it comes through the ceiling downstairs.

    Is teflon required on these nipples? From what I can tell, Teflon would be very restrictive.
     
  2. Feb 18, 2018 #2

    Mr_David

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    What is a cross cut nipple?
    Other than something that goes onto a baby bottle.
    google it?

    This faucet? or ??
     
    Last edited: Feb 18, 2018
  3. Feb 18, 2018 #3

    TomFOhio

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    Do you mean a cross threaded nipple? If so you need to either get a new nipple or re tap the fitting that the nipple goes in. Send a picture if this isn't what your talking about.
     
  4. Feb 18, 2018 #4

    Matt30

    Matt30

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    It's all installed now, no pictures.

    Hansgrohe referred to it in their literature as a crosscut nipple. I've saw them before but never installed them. It's still npt and the female remains the same, but the nipple has all these jagged edges, it's hard to explain.

    Friggin Germans
     
  5. Feb 18, 2018 #5

    Geofd

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    I installed a very expensive kitchen faucet for someone
    there were / strange nipples one had a thread that went
    to the provided faucet supply,the other end was a compression
    nut and Ferrell that fit into the stop...it's easier to make things
    complicated!!!!!!!
     
  6. Feb 19, 2018 #6

    WyrTwister

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    Personally , if I was in doubt , I would use both Teflon & pipe dope . But that is just a wild guess .

    Wyr
    God bless
     
  7. Feb 19, 2018 #7

    Matt30

    Matt30

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    It was a hard judgement call. Due to how much bite this nipple had, and I know it wasn't cross threading, my fear was if I used Teflon, I may not reach the sealing threads. So I used pipe dope, and made sure I buried the threads. I didn't put water on until the next day to let the pipe dope set up. I'm confident it's fine.........I hope!
     
  8. Feb 19, 2018 #8

    WyrTwister

    WyrTwister

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    Best of luck to you . :)

    Doubt you needed to let the pipe dope set ?

    Wyr
    God bless
     
  9. Feb 19, 2018 #9

    Matt30

    Matt30

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    The brand I used hardens up, which is why I used it
     
  10. Feb 20, 2018 #10

    WyrTwister

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    I used to use RectorSeal . Back in the day .

    On black iron air lines and gas lines . And on galvanized steel pipe and on copper fittings that screwed into other fittings .

    Do not know what is in common use , currently .

    Wyr
    God bless
     
  11. Feb 21, 2018 #11

    Mr_David

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    Was it This faucet?


    I'm curious as to which faucet you installed.
    The one above was just a random one I found.
    and it only showed how to install the trim.
     
  12. Feb 22, 2018 #12

    Matt30

    Matt30

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    Not that exact one but same set up. Same rough in.
     
  13. Feb 23, 2018 #13

    Mr_David

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    This the nipple you were asking about?
    Kind of a cheesy way to mount a spout. the part being you have to trim the threaded end of the nipple before you screw it in to the valve.

    I have confidence in you that it wont leak.

    What is that thing in the my 2nd snip?

    zzz.JPG

    zzzz.JPG
     
  14. Feb 23, 2018 #14

    Matt30

    Matt30

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    "Cheesy" was my first reaction. Especially since it's a hansgrohe product. Everything else I installed from them has always been top notch.

    The nipple was the same installation as that. As annoying as it is to cut the nipple, it is pretty forgiving for wall depths I will admit. That was pretty much the same literature that came in the box, but it didn’t indicate needing Teflon and it referred to the nipple as a cross cut nipple, and even the treads on the illustration looked "burred". Finding a picture of these threads is like finding a Sasquatch!

    I'm not sure what that is in the picture, nothing like that was on the one I installed. . A beer can on a string maybe? I know I sure wanted one when I was installing it. I had to mount it on a mirror!
     
    Last edited: Feb 23, 2018
  15. Feb 23, 2018 #15

    Matt30

    Matt30

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    Custom cut mirror. I wonder how many years of bad luck I would have? Sorry for the sideways pic

    3370098C-B60D-4DAB-B4FB-997CC0974A58.jpg
     
  16. Feb 27, 2018 #16

    Matt30

    Matt30

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    I was clearing out my tool bag and found the piece I cut off. Notice how the threads are all jagged? It’s weird. And apparently I’m the only one in my company to come across one yet!

    C025185E-DF2B-4E7F-A14B-74107CDC92B7.jpg
     

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