What is the best valve to use in an airgun???

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.
User avatar
BigBang J
Specialist
Specialist
Posts: 109
Joined: Thu Jul 08, 2010 12:01 pm

Thu Jan 10, 2013 3:07 am

Hey guys, I am looking to build a new airgun soon, and I was wondering what is the best valve design to get the most power?
Also maybe can you list some different types of valves and their pros and cons. Thanks.
User avatar
jackssmirkingrevenge
Five Star General
Five Star General
Posts: 26216
Joined: Thu Mar 15, 2007 11:28 pm
Has thanked: 576 times
Been thanked: 347 times

Donating Members

Thu Jan 10, 2013 3:28 am

The best valve is no valve ;)

http://www.spudfiles.com/forums/valvele ... 12569.html

The downside is that you need a 100% airtight projectile or sabot.

A burst disk would be roughly equivalent, but is a pain to reload for rapid follow up shots.

The QDV is a compromise between valveless type speed and flow and piston valve practicality:

http://www.spudfiles.com/forums/quick-d ... 17858.html

After that there's your usual exhaust valves in the shape of piston valves like QEVs or diaphragm valves like sprinklers.

Most commercial airguns use hammer valves, but they also tend to use very high pressures in the order of 1000-3000 psi.

A more detailed idea of what you want to achieve in terms of a finished result will result in better advice.
hectmarr wrote:You have to make many weapons, because this field is long and short life
User avatar
mattyzip77
Sergeant 3
Sergeant 3
United States of America
Posts: 1249
Joined: Tue Jun 28, 2011 12:22 pm
Location: Taxachusetts

Donating Members

Thu Jan 10, 2013 5:19 am

If you want to do little work, I highly recommend a dust collector valve. Very fast, powerful, and easy to use....
Go Bruins!!!!
User avatar
BigBang J
Specialist
Specialist
Posts: 109
Joined: Thu Jul 08, 2010 12:01 pm

Thu Jan 10, 2013 3:38 pm

I want to build an air gun for hunting purposes and so I will be needing high pressure, thinking 1000psi.
Mattyzip: what is a dust collector valve?

Edited and locked by jrrdw.
User avatar
jrrdw
Moderator
Moderator
United States of America
Posts: 6572
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Has thanked: 39 times
Been thanked: 22 times
Contact:

Donating Members

Thu Jan 10, 2013 3:54 pm

2. Discussion of shooting anything at any person and/or animal is prohibited, and may result in a permanent banning of your account.

A: The exception to this rule is for proper use of legal airsoft and/or paintball markers.
Locked