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    Results 1 to 6 of 6
    1. #1
      Join Date
      Feb 2006
      Location
      SoCal
      Posts
      1,622

      NPT to AN Conversion Chart

      Can someone post up a conversion chart between AN and NPT. I need to know what 1/16" NPT and 1/8" NPT would convert to for AN.

      I think it would be handy if this conversion chart was stickied for everyone.

      Thanks!

      John

      '66 Chevy II - The "NEW" '69 Camaro!

      ***Under Construction***

      Build Update Link:

      https://www.pro-touring.com/forum/sh...ad.php?t=17108


    2. #2
      Join Date
      Feb 2006
      Location
      SoCal
      Posts
      1,622
      '66 Chevy II - The "NEW" '69 Camaro!

      ***Under Construction***

      Build Update Link:

      https://www.pro-touring.com/forum/sh...ad.php?t=17108

    3. #3
      Join Date
      Jun 2001
      Location
      Newbury Park, CA
      Posts
      5,837
      Country Flag: United States
      That is, unfortunately, a bit misleading.

      A -6 AN system does not directly interchange to a 3/8" pipe flow rating. AN hose is rated by the bore size, so that is easy. However, tubing size is rated by the O.D.. It does not take into account the wall thickness of the tubing used. It is not uncommon for a 3/8" pipe to have a bore size of under 5/16" (0.040" wall thickness.)

      Also, the fittings are often very restricive. It is common to find that a -6 fitting has a bore size of 0.250 - 0.275".

      So, a -8 may seem to match up to a 1/2NPT, but a -10 is much closer to actual 1/2" pipe size.
      VaporWorx. We Give You Gas http://www.vaporworx.com

    4. #4
      Join Date
      Aug 2004
      Location
      Ontario, Canada
      Posts
      2,314
      Country Flag: Canada
      I'll try to explain where and how I get tripped up, and could also use some sort of chart to make life easier.
      I measure a female pipe thread (let's say 1/2"). I buy a 1/2" nipple. It is wayyyy too big. Yes, that's right, the nipple and thread is sized to the inside diameter of the pipe.
      I need a chart that will tell me the actual size of a thread for a given pipe size.
      Any one?

      Ken
      If there is a hard way to do something, I'll find it!
      My other car is a Vega.

    5. #5
      Join Date
      Sep 2004
      Location
      Houston, TX
      Posts
      11
      ______________
      Tim

    6. #6
      Join Date
      Aug 2004
      Location
      Ontario, Canada
      Posts
      2,314
      Country Flag: Canada
      Thanks Tim, that will save me a few headaches. Not to mention miss-ordered parts.

      Ken
      If there is a hard way to do something, I'll find it!
      My other car is a Vega.




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