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Question about threading pipe with Ridgid 65-RA

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rhodebump
rhodebump Member Posts: 152
in Strictly Steam
I am threading some pipe with a Ridgid 65-RA and the threads appear to be NPS (they do not taper) like NPT.

I bought/installed a new set of dies (NPT), and threaded pipe. These threads are still not NPT (and the threaded pipe does not fit well into NPT fittings).

I am positive that I installed the dies correctly, and it does make clean threads, but any thoughts on what the problem may be? I would think NPT dies would make NPT threads, but what else may be going on?

Thanks!

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  • Big Ed_4
    Big Ed_4 Member Posts: 2,794
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    Did you set in the new dies in series ? Check the markings.....

    There was an error rendering this rich post.

  • ChrisJ
    ChrisJ Member Posts: 15,727
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    rhodebump said:

    I am threading some pipe with a Ridgid 65-RA and the threads appear to be NPS (they do not taper) like NPT.

    I bought/installed a new set of dies (NPT), and threaded pipe. These threads are still not NPT (and the threaded pipe does not fit well into NPT fittings).

    I am positive that I installed the dies correctly, and it does make clean threads, but any thoughts on what the problem may be? I would think NPT dies would make NPT threads, but what else may be going on?

    Thanks!

    I'm not familiar with a 65-RA?

    The 65R doesn't use the dies to create taper. It's a receding threader so as you thread it slowly retracts the dies away causing the taper.

    The only thought I have is did you set it for normal threads or accidently set it for oversized?




    Here's the instructions : https://cdn2.ridgid.com/resources/media?key=c7a4786e-92bb-460e-b59c-cc05bb6f6236&languageCode=en&type=document

    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
  • dko
    dko Member Posts: 607
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    If it was originally a BSPT threader, it can't use NPT dies.



    If BSPT dies require a BSPT threader, you can extrapolate that NPT dies require NPT threader.
  • rhodebump
    rhodebump Member Posts: 152
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    That is so helpful! Thank you! You can't teach an old threader new threads ;)
  • rhodebump
    rhodebump Member Posts: 152
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    I am going to try one more time with my NPT dies and use exactly the standard depth setting. I did go beyond the standard setting thinking that it would create more threads on the pipe, not deeper ones.
  • KC_Jones
    KC_Jones Member Posts: 5,739
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    Not sure if a visual would help anyone, but here is a listing on ebay showing a 65-RA threader.

    https://www.ebay.com/itm/153789535110
    2014 Weil Mclain EG-40
    EcoSteam ES-20 Advanced Boiler Control
    Boiler pictures updated 2/21/15
  • dko
    dko Member Posts: 607
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    The difference between the letters at the end is only how it clamps/holds the pipe. Rest is the same

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