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Performance loss of remote activation?

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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Performance loss of remote activation?

Unread postAuthor: BeaverRat » Sat Aug 07, 2010 1:29 am

Hello,

I just completed a 1 inch piston valve with 3/4 inch porting (will be in showcase soon), but I would like to place the trigger at different place on the gun than where the valve is.

It is a 1 inch piston valve actuated by a 1 inch sprinkler valve. I originally threaded a blowgun into the pilot area of the sprinkler valve to actuate it faster than the solenoid could, but I was wondering if this even matters because the valve is being used as a pilot valve, not a main valve. It would be really nice to be able to electronically actuate it, but I don't want to suffer any performance losses.

Basically, would actuating the piston valve using a solenoid activated sprinkler valve vs a blowgun activated sprinkler valve cause any performance loss?

Thanks
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Unread postAuthor: MrCrowley » Sat Aug 07, 2010 1:43 am

I doubt it, 1" sprinkler valve piloting a 1" piston is serious over-kill.
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Unread postAuthor: jackssmirkingrevenge » Sat Aug 07, 2010 2:00 am

It shouldn't make that much of a difference, but you can always have a blowgun/ballvalve pilot for the sprinkler actuated by a rod or cable.
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Unread postAuthor: BeaverRat » Sat Aug 07, 2010 2:14 am

What about a blowgun extended by pressure tubing... A barb fitting on the sprinkler valve. Would that actuate it faster than the solenoid?
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Unread postAuthor: jackssmirkingrevenge » Sat Aug 07, 2010 2:17 am

You'll increase pilot volume but flow will still be better than a solenoid.

Really though as MrC said, a 1" sprinkler piloting a 1" piston is so overkill that you're not realyl going to see a difference.

I piloted this 1" piston with a schrader...
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Unread postAuthor: BeaverRat » Sat Aug 07, 2010 2:59 am

The reasons I am using a 1 inch SV are because
-I have a relatively large pilot volume for the piston valve
-I had it on hand

It's working quite well - I got a cork going 700 FPS at 120 PSI.
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Unread postAuthor: ramses » Sat Aug 07, 2010 3:40 pm

Technically, the 1" sprinkler valve has a larger port diameter than the piston valve.

no performance loss.
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