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Thread: One Way Valve Issue

  1. #1
    Wael AL-Jareh Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3's Avatar
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    One Way Valve Issue

    I was assembling my Ray's loop, and I noticed that the inhalation valve (one way valve) is sitting loose in its place. When I continued tightening the corrugated hoses on both sides of the DSV, then I blocked the exhale hose and blew into the DSV where I found that the inhalation valve is leaking back slightly. I then took off the hoses, and tried to blow within the inhalation valve on its own, but it doesn't show any leak. It seems that the leak is happening because it's sitting loose in the DSV so its wall isn't sealing against the DSV's inner wall.

    Any ideas?


    Wael

  2. #2
    Wael AL-Jareh Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3's Avatar
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    Re: One Way Valve Issue

    I'm still hoping to get some ideas about the problem.



    Regards. Wael

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    Re: One Way Valve Issue

    Use a layer of tape around the housing and reseat it. Replacing it may not solve the problem. (The barrel may be out of tolerance.)

    In use, it actually isn't a problem as the amount of gas which goes around it is too small in comparison to the total gas volume of gas inhaled.

    Dale

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    Re: One Way Valve Issue

    Quote Originally Posted by Brainx3  View Original Post
    I was assembling my Ray's loop, and I noticed that the inhalation valve (one way valve) is sitting loose in its place. When I continued tightening the corrugated hoses on both sides of the DSV, then I blocked the exhale hose and blew into the DSV where I found that the inhalation valve is leaking back slightly. I then took off the hoses, and tried to blow within the inhalation valve on its own, but it doesn't show any leak. It seems that the leak is happening because it's sitting loose in the DSV so its wall isn't sealing against the DSV's inner wall.

    Any ideas?


    Wael
    when you assemble the hose on the DSV, put the hose far enough, so the first ridge in the corrugated hose seals against the valve seat

    alternative is an O-ring on the outer side of the valve seat, between valve seat and hose-ends: works always perfect: this is what we do on our assemblies

    paul
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  5. #5
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    Re: One Way Valve Issue

    Or if you don't have an appropriate o-ring, just use some bicycle inner tube.

  6. #6
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    Re: One Way Valve Issue

    Quote Originally Posted by Stephane  View Original Post
    Or if you don't have an appropriate o-ring, just use some bicycle inner tube.

    Could you show a pic to clarify this? I have noticed this on all my ray loops but it never has been a problem as the bypass is very low and under pressure only. Don´t think it´s neccessary to change it but who knows

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    Re: One Way Valve Issue

    I use teflon tape

  8. #8
    Wael AL-Jareh Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3 is a jewel in the rough Brainx3's Avatar
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    Re: One Way Valve Issue

    That's the RBW spirit! Thanks all for the replies. I have tried Paul's way first, but it seems no matter how hard I push the corrugated hose against the DSV, I don't get it to seal properly, so I moved forward and tried Dale's way. Although normal tape loses its glue when in contact with high humidity/water, then I cut a piece of a duct tape, wrapped it on the valve's seat, and squeezed it in place. Worked very well!!!

    Thanks again for all other tips.


    Regards. Wael

  9. #9
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    Re: One Way Valve Issue

    Quote Originally Posted by RGMag  View Original Post
    Could you show a pic to clarify this? I have noticed this on all my ray loops but it never has been a problem as the bypass is very low and under pressure only. Don´t think it´s neccessary to change it but who knows
    Sorry, not for the moment, I'm in Argentina till the end of the month.
    The idea is to cut a little bit (5mm to 1cm) of inner tube and use it like an o-ring.

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