I'm am going to construct a ball valve gun with a bike pump. I was wondering if I needed a check valve on the end of my pump.
4 replies to this topic
#2
blister
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Posted 23 May 2007 - 05:44 PM
I'm pretty sure most bike pumps already have check valves built in.
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#3
CaptainSlug
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Posted 23 May 2007 - 06:30 PM
Bike pumps would not be able to function without check valves built into them. The only reason you would need another check valve would be if you want to be able to remove the bike pump without whatever you just pressurized emptying.
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#4
Belgianwaffle
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Posted 23 May 2007 - 08:16 PM
Thanks, I am not going to put on a check valve because i am not making my pump removable. I'll post pictures when I'm done.
#5
King Of Butt Land
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Posted 25 May 2007 - 05:08 PM
Generally you don't need check valves after a bike valve because they do in fact have check valves built in. However, if your using a QEV or really sensitive piston valve, a check valve after your fill valve will be ideal so you don't accidentally pilot your valve causing a dangerous misfire.
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