ball valve ratio?

This topic has 2 replies, 2 voices, and was last updated 9 October 2015 at 22:58 by julian atkins.

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9 October 2015 at 20:49 #207223
nigel jones 5
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@nigeljones5
Im designing a direct drive oil pump for my invicta as I have had no success with the ratchet type. I have an inlet and outley bore of 1/8". Both have springs to aid relocation but im not sure of what size ball for the seat. Im guessing steel is preferable to nitrile simply because of the added mass when relocating? Any simple rule of thumb? Ta.
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9 October 2015 at 20:49 #7826
nigel jones 5
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@nigeljones5
9 October 2015 at 22:58 #207236
julian atkins
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@julianatkins58923
hi nigel,

5/32" dia ball on a 1/8" seat works perfectly for me. i have always had a problem with a 3/16" ball on a 5/32" seat – the proportions are not quite correct, but the above is fine.

cheers,

julian
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ball valve ratio?

ball valve ratio?

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