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Piston valve fill valve location
Posted: Sat Dec 09, 2006 11:59 am
by Bluetooth
In my pneumatic piston valve canon that is curently being built there is a spring behing the piston that keeps it sealed very well can i pump it from the end of the chamber?
Posted: Sat Dec 09, 2006 12:08 pm
by Hayseed_Andrew
I'd say you could fill it from wherever you feel like it.
Posted: Sat Dec 09, 2006 3:06 pm
by Slugfoot
I have an over and under copper pneumatic that has a spring behind the piston which I fill from the muzzle end of the chamber with no problem whatsoever.
Posted: Sat Dec 09, 2006 3:22 pm
by noname
If your piston is sealed with O-rings, you will need an equilization hole, but other than that you can fill from anywhere.
Posted: Sat Dec 09, 2006 3:53 pm
by SpudStuff
You "can" but not with a fast fill rate. If the piston equilizes slower than the fill rate it will be theortically pushed backwards.
Posted: Sat Dec 09, 2006 4:41 pm
by Bluetooth
Well im pumping it with a bike pump anyway so i dont think that matters and i already glued it and will be submiting it tomarrow.