What size Coupling/Thread ?

  1. demented Member

    Messages:
    53
    UK
    If of interest; the final product fitted, complete with compact elbow. Screenshot_20190611-162600.png Screenshot_20190611-163144.png

    I would have preferred the Tap be Red rather than Green but suppose I could paint it.
     
  2. carbon

    carbon Member

    Messages:
    1,117
    Location:
    S. Glos. U.K
    May be a daft question but what’s the need for a tap/ valve as the quick release coupling is self sealing. Brightspark needs the valve as his couplings don’t self seal
     
    brightspark likes this.
  3. melle Member

    Messages:
    285
    Location:
    Bath UK/ Dublin IRL
    @demented, I like the compact elbow! I personally wouldn't be too fussed about the colour of the tap. I would prefer to have the coupling pointing down though, if at all possible.

    @carbon, I use Euro couplings, which are supposed to be self sealing but always hiss. My father in law's compressor has PCL fittings, which are hardly any better.
     
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  4. demented Member

    Messages:
    53
    UK
    @carbon, as for the Tap, the compressor came with one as standard, which looked fragile, so I just replaced it with one which was more robust but now you've pointed it out and due to the Quick Release Coupling, maybe I didn't need it.

    @melle, yeah, I can have it pointing down but it's much easier to connect to in the slightly upright position; is there any reason why you'd prefer to have it pointing downwards ?
     
  5. melle Member

    Messages:
    285
    Location:
    Bath UK/ Dublin IRL
    I want it pointing downward just so it's out of the way and nothing can catch on it. Maybe your workshop is less messy than mine. ;) It also gives the internals of the coupling a better chance of staying free from grinding dust etc. I think
     
  6. demented Member

    Messages:
    53
    UK
    @melle, I've pointed the valve towards the compressors tubular handle, which kinda sheilds it and I don't do that much grinding but thanks for your insight.
     
  7. carbon

    carbon Member

    Messages:
    1,117
    Location:
    S. Glos. U.K
    I used to have that issue with the genuine pcl female couplings. I now have a mixture of 'pcl' and euro fittings but Im using rectus couplings now without any issues
     
  8. Ashley Burton

    Ashley Burton Member

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    2,311
    Location:
    Northamptonhire
  9. Farside

    Farside Badly Welded Man

    Messages:
    3,126
    Location:
    Ireland
    One good reason for a shut-off valve behind the coupling is it's a lot easier to connect when there's no line pressure and avoids straining the bits and bobs the coupling's connected to on the compressor, especially the Chinesium castings.
    I put lever valves on the end of my tank for reason of easy connection, but also to avoid loss of system air through leaks if I'm not using the main ring.
     
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