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Product Failure Warning - Danger ***

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  • #16
    Looks like you got what you paid for.
    "the ocean is the ultimate solution"

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    • #17
      How does this happen? Here's some thoughts. Someone on our side of the puddle designs a steel coupler using inch dimensions and tooling. It is well designed and made and lasts for years. But it costs "too much". An Asian shop "copies" the design but has metric tooling and decides to use brass instead of steel. They convert the inner hole size to metric and size it up to the next size metric drill they have on hand. They resharpen the drill in the same "high quality" manner as some import drill bits that I have purchased (and returned). Now the hole is perhaps 0.01 to 0.02 inches larger than the original design and the material is weaker. Oh, I forgot to add in Chinese tolerances, but you get the idea.

      The part looks the same on the outside and no one does any tests, they just package and ship them. Feedback from users is almost impossible and therefore totally absent.

      But we still go to HF and buy them. ????? Because they are cheaper? But wouldn't one well made connector outlast dozens of such poorly made ones? And really be the actual bargain.
      Paul A.
      SE Texas

      Make it fit.
      You can't win and there IS a penalty for trying!

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      • #18
        I have a few of the brass connectors. I use them on some outlets that aren't used often such as pressure regulated for spray painting. All of the connectors on my air tools, of which I have many, are hardened steel. They don't wear slowly because they don't wear measurably at all. My air tools are all US made leaning heavily to older Chicago Pneumatic models that I bought years ago.

        As has been said before, if you are in business to make a living you can't afford to buy cheap stuff.
        Free software for calculating bolt circles and similar: Click Here

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        • #19
          I have yet to see any air connectors made of hardened steel. The steel ones are screw machine products, made of free cutting steel and plated.

          Regardless of the material of construction, manufacturer or purchase price, the wear and leaking is the result of other factors. It is wear and damage to the internals of the female fitting that leads to their demise.

          Especially in commercial applications such as a body shop or industrial use, the male fitting can become mechanically damaged, dented or gouged. It also will pick up dirt, abrasives or other contaminants that are now forced into the female coupler. This damages and wears the O-rings and seats, resulting in wear and leakage, which is what Ken is addressing by replacement.
          Jim H.

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          • #20
            I have yet to see any air connectors made of hardened steel.
            Well, the ones I have and still use from the 70s can't be cut with a hacksaw.

            Oh, the male connectors I have do not become dented, gouged or otherwise damaged. It must be because they are hardened.
            Free software for calculating bolt circles and similar: Click Here

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            • #21
              For your edification Jim I just took a photo of an attempt to file the male connector on my air hammer. Using a Nicholson flat bastard all it was able to do was shine up the finish by removing the dirt.



              That connector has been on there through years of working on aircraft in the 70s and ever since. Note the condition. My connectors do not leak.
              Free software for calculating bolt circles and similar: Click Here

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              • #22
                Regardless of the materials of construction, the cause for leakage in the female coupler remain the same. It is not wear of the male nipple, but wear and damage to the internals of the female coupler.
                Jim H.

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