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Not exactly. The added material (stuffing) increases pressure. The channel...

July 14 2017 at 5:32 PM

Steve in NC  (Login pneuguy)
AR&P


Response to The additional thickness on the piston face

...while admittedly reducing the total volume of stuffing and therefore net pressure gain, provides access to the air hiding in the O-ring gland which matters more than maxing out pressure. Bottom line: Some stuffing is better than none, and 100% of the stroke volume is better than some. happy.gif

I'm still experimenting with stuffing thickness, but it's looking like the optimum likely lies somewhere between 0.033" and 0.045"
Steve


    
This message has been edited by pneuguy on Jul 14, 2017 5:37 PM


 
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  • Steve if you could find a happy thickness, could this be done - michael wolfram on Jul 14, 2017, 6:05 PM
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  • nt - Lon on Jul 14, 2017, 10:40 PM
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