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3/4" QEV piloting
Posted: Tue Jun 01, 2010 11:28 am
by woodscout
is the 3 way push button valve(small) enouhg to pilot an 3/4" QEV? its going to be used on a marble rifle. also how much pressure do i need to shoot the marbles pretty high velocity because my chamber size is going to be 20mm x 180mm?
Posted: Tue Jun 01, 2010 4:33 pm
by jrrdw
What valve 'exactly' (part number, link, picture) are you talking about. What is your chamber made of? You have to be more discriptive, we are not mind readers...
Re: 3/4" QEV piloting
Posted: Tue Jun 01, 2010 4:39 pm
by spudtyrrant
woodscout wrote: how much pressure do i need to shoot the marbles pretty high velocity because my chamber size is going to be 20mm x 180mm?
depends what your definition of high velocity is, 200 fps 1000fps, or some other number?
Posted: Tue Jun 01, 2010 5:26 pm
by MrCrowley
I think it would be too small. Even if it could pilot a QEV, it wouldn't do it very well. That's assuming the 3/2 is 1/8" threaded.
Posted: Tue Jun 01, 2010 9:58 pm
by POLAND_SPUD
yeah most 1/8" valve will have too little flow... possibly clippard's MJVO-3 is good enough but I can't test it
alternatively you can use an aux. QEV to pilot the main QEV
I tested this with a 1/8" QEV that you can see in the pic below and it works great