Results 1 to 20 of 20

Hybrid View

  1. #1
    Join Date
    Oct 2004
    Location
    Lyons, CO
    Posts
    3,046

    Default Making a wax melter: : is 16NC thread tap equivalent to NPT?

    I'm making a wax melter a-la http://www.candletech.com/general-in...lf-wax-melter/ presto pot. I went to get a thread tap and all Home Despot had is a "16NC" tap set in 3/8". Will this tap threads for regular NPT fittings like a regular brass plumbing fitting?

    Do the compressed-air fittings (there's a nice 3/8" full-port valve with male threads, where most fo the other ball valves have female on both ends) have the same thread count as NPT or this die, or do I need to use plumbing fittings only?
    Bees, brews and fun
    in Lyons, CO

  2. #2
    Join Date
    Jul 2006
    Location
    Worcester County, Massachusetts
    Posts
    3,679

    Default Re: Making a wax melter: : is 16NC thread tap equivalent to NPT?

    I think the NPT is a tapered thread....the NC is not.

    deknow
    The perils of benefactors; The blessings of parasites; Blindness blindness and sight -Joni Mitchell 'Shadows and Light'

  3. #3
    Join Date
    Oct 2004
    Location
    Lyons, CO
    Posts
    3,046

    Default Re: Making a wax melter: : is 16NC thread tap equivalent to NPT?

    Dangit, I figured. Can it be that HD doesn't carry threading taps? I guess I can look around for plumbing supply places, but sheesh this should be easier .

    Wait, I wonder if the bind (we're talking super-thin aluminum wall here) would be OK to seal anyways?
    Bees, brews and fun
    in Lyons, CO

  4. #4
    Join Date
    Jul 2006
    Location
    Worcester County, Massachusetts
    Posts
    3,679

    Default Re: Making a wax melter: : is 16NC thread tap equivalent to NPT?

    ...you might check Amazon.

    deknow
    The perils of benefactors; The blessings of parasites; Blindness blindness and sight -Joni Mitchell 'Shadows and Light'

  5. #5
    Join Date
    Oct 2004
    Location
    Lyons, CO
    Posts
    3,046

    Default Re: Making a wax melter: : is 16NC thread tap equivalent to NPT?

    This air ball valve for example; is air NPT?

    B
    SP air ball valve
    Last edited by Ben Brewcat; 03-09-2013 at 08:28 PM. Reason: fix link
    Bees, brews and fun
    in Lyons, CO

  6. #6
    Join Date
    Oct 2004
    Location
    Lyons, CO
    Posts
    3,046

    Default Re: Making a wax melter: : is 16NC thread tap equivalent to NPT?

    Yeah, I'm looking at this one but wanted to make it this weekend. Plan ahead right ?
    Bees, brews and fun
    in Lyons, CO

  7. #7
    Join Date
    Jan 2010
    Location
    Ferndale, WA
    Posts
    5

    Default Re: Making a wax melter: : is 16NC thread tap equivalent to NPT?

    I believe NPT is National Pipe Thread and NC is a coarse thread and not tapered as a pipe thread is.

  8. #8
    Join Date
    Feb 2013
    Location
    Murray KY, USA
    Posts
    263

    Default Re: Making a wax melter: : is 16NC thread tap equivalent to NPT?

    JB Weld to seal and treat it like a bulkhead? That way you're basically sandwiching the aluminum and not relying on it to hold its thread. Just a thought.

  9. #9
    Join Date
    Jul 2006
    Location
    Worcester County, Massachusetts
    Posts
    3,679

    Default Re: Making a wax melter: : is 16NC thread tap equivalent to NPT?

    I just reread your post...I think I did exactly that a few years ago for a presto pot. My recollection is that it worked, but the fitting didn't thread all the way through...a bit fragile, but workable.

    deknow
    The perils of benefactors; The blessings of parasites; Blindness blindness and sight -Joni Mitchell 'Shadows and Light'

  10. #10
    Join Date
    May 2002
    Location
    San Mateo, CA
    Posts
    4,947

    Default Re: Making a wax melter: : is 16NC thread tap equivalent to NPT?

    I see some on EBAy that are JB Welded in. I have the tap I used, I could look tomorrow what it is.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Ads