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Large commercially available exhaust valves

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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Large commercially available exhaust valves

Unread postAuthor: D_Hall » Sat Jun 08, 2019 3:34 pm

I have a decade old memory of somebody selling a 4" quick exhaust valve (or similar) that was rated to something like 400 psi. A quick google isn't turning up anything but my google fu has always sucked. I know this is beyond the normal stuff, but if there's a group of folks on the internet who will have the knowledge of who makes some random high speed valve and where to find it, it's you folks.

This ring a bell for anyone?
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Re: Large commercially available exhaust valves

Unread postAuthor: Gippeto » Sat Jun 08, 2019 8:48 pm

For personal or "work" related?

There are some 4" sprinkler type valves that come up, but nothing had more than 150psi rating.

For personal and on a budget...large toolies piston?

If you need approvals and have tax dollars to spend, you could drop Emerson a line and ask about piloted relief valves. Anderson Greenwood has something that might be made to work...not sure how quick it'll open as supplied, but it's basically a big ass qev.

https://www.emerson.com/en-us/catalog/a ... od-p001062
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Re: Large commercially available exhaust valves

Unread postAuthor: D_Hall » Sat Jun 08, 2019 9:08 pm

Thanks for the tip on emerson.
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Re: Large commercially available exhaust valves

Unread postAuthor: jackssmirkingrevenge » Wed Jun 12, 2019 5:49 am

Goyen brand larger diameter valves used here, not sure if they go up to 4" though.
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