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1/16" and 3/32" Tungsten, Standard Collet, WP-20 torch

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    1/16" and 3/32" Tungsten, Standard Collet, WP-20 torch

    While I usually use a gas lens, I sometimes weld with a standard collet body. I have a 20 series torch, and I only use 1/16" and 3/32" tungsten.

    I posted this diagram and chart from https://www.weldingcity.com/tig-weld...s-995795s.html in another thread, but now I am looking at the standard collet body part numbers.

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    Click image for larger version

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    #2
    So for a 1/16" electrode and standard collet body, one needs:

    (1) Cup Gasket 598882 (this is provided on a WP-20 torch when you buy it),
    (2) "Standard" (as opposed to "long") Collet 13N22,
    (3) Standard Collet Body 13N27, and
    (4) 6 cups to choose from ranging from #4 to #10. An example is 13N12 for a #8 cup.

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      #3
      So for a 3/32" electrode and standard collet body, one needs:

      (1) Cup Gasket 598882,
      (2) Standard Collet 13N23,
      (3) Standard Collet Body 13N28, and
      (4) 6 cups to choose from ranging from #4 to #10. An example is 13N09 for a #5 cup.

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        #4
        Happily, the Back Caps are not dependent on either tungsten diameter or collet type. Just choose short, medium or long.

        I was surprised that my boss at the welding shop had never heard of a gas lens, but he went to welding school in 1991.

        I was surprised that the clerk at the LWS needed to look up the PN for a WP-20 torch part that I was buying, but now I see that one needs different collets and collet bodies for different electrode diameters, as well as longer collets for large diameter gas lens collet bodies.

        I made these threads because I was annoyed that I needed different torch parts for 1/16" and 3/32" electrodes. I was also annoyed that I needed to use a Large Diameter Gas Lens for a #10 or #12 cup.

        I will have to have 4 bins for parts:
        (1) standard nozzle, 1/16" tungsten,
        (2) standard nozzle, 3/32" tungsten,
        (3) gas lens, 1/16" tungsten, and
        (4) gas lens, 3/32" tungsten.
        Last edited by commuter ebikes; 09-19-2018, 08:40 AM.

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