Pulse, QEV vs GGDT

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
United States of America
Posts: 12
Joined: Tue Sep 06, 2022 4:06 pm
Has thanked: 3 times
Been thanked: 3 times

Thu Sep 08, 2022 4:25 pm

For an off-the shelf valve, I gather the QEV (old threads imply harder to get) and the Pulse dust clearing valves (e.g. those from Asco) are good options.

But I have been unable to figure out how to model them in GGDT. Anyone have any sample parameters they can share? Are these both Chamber seal types? Or should I use "generic"? In the case of generic, I don't knwo what to use as response time.

Grateful for some assistance here... I assume Mr. Hall is no longer with us.
User avatar
Five Star General
Five Star General
Posts: 26071
Joined: Thu Mar 15, 2007 11:28 pm
Has thanked: 449 times
Been thanked: 246 times

Donating Members

Fri Sep 16, 2022 10:57 am

I typically use "generic" as a good approximation, for exhaust valves typically opening time is a matter of milliseconds so say 5 ms should give you typical results.
(old threads imply harder to get)
Not at all, they are all over Amazon or eBay and cheaply available, unless you need larger diameters in which case they start getting a little pricey.
hectmarr wrote:You have to make many weapons, because this field is long and short life
Post Reply