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Pilot operated valve question

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Pilot operated valve question

Unread postAuthor: Pescadortio » Tue Aug 16, 2016 5:33 pm

Hello,

I am new to the forums and am currently working on a new build and have run into a dilemma. I will be using co2 as the propellant that will be used with the 3-way directional valve to chamber to barrel setup. I doubt I will have the need for more pressure, however it appears to me that most of the 3-way DCVs I've seen online max out at 115psi. However, the pilot operated valves can operate at a much higher pressure so that is what I'm leaning towards, with the setup having a small solenoid valve actuate the larger DCV for greater flow and pressure. My problem currently is that the pilot operated DCVs require a pilot pressure of anywhere from 20-40psi. should I simply tap into the line with a T connector and have a regulator bring down the pressure to 20psi and then have that lined to the pilot operated DCV which has the inlet hose sourcing from the original T I mentioned or is there a much simpler way of making this happen?
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Re: Pilot operated valve question

Unread postAuthor: jackssmirkingrevenge » Sun Aug 28, 2016 9:42 am

Have you considered using a slide-check valve as used on paintball remote lines?

Image

They can take full CO2 pressure without issues, and with enough flow to pilot a QEV adequately.
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