Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 82 users online :: 3 registered, 1 hidden and 78 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

QEV Help

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.
Sponsored 
  • Author
    Message

QEV Help

Unread postAuthor: ainsworth112294 » Tue Aug 26, 2008 10:37 pm

could someone please tell me the parts i wold need to build the valve on this gun(someone told me it was a QEV but idk) i need parts list and how to construct it and i wold like it to be the same size so please help me.

The valve on this gun http://www.spudfiles.com/forums/spare-p ... 14952.html
  • 0


ainsworth112294
Private
Private
 
Posts: 11
Joined: Tue Aug 26, 2008 3:06 pm
Reputation: 0

Unread postAuthor: A a r o n » Tue Aug 26, 2008 10:47 pm

THe valve is called a QEV. You can't build them, you have to buy them.

http://www.spudfiles.com/spud_wiki/index.php/QEV
  • 0

User avatar
A a r o n
Specialist
Specialist
 
Posts: 55
Joined: Sat Jul 07, 2007 3:23 pm
Location: NJ
Reputation: 0

Unread postAuthor: blind909 » Tue Aug 26, 2008 10:50 pm

He used a 1/4 inch QEV(It says in the description). It is just random parts he had laying around, so He probably couldnt even give you a parts list. You can find them at you local Fastenal Equipment, or a hydraulics store. Next time, use the Search function and the Wiki Button.

Edit-He used

6 Inches of 1/2 inch Galv. Steel
A 1/2 inch threaded 90* elbow
1/2 inch-1/4 inch bushing
5/16" Brakeline
1/4 inch "T"
(3) 1/4 Inch nipples
A Female Quick connect
1/2 inch endcap
Blowgun Valve
  • 0

Last edited by blind909 on Tue Aug 26, 2008 10:54 pm, edited 1 time in total.
<a href="http://www.danasoft.com"><img src="http://www.danasoft.com/citysign.jpg" border="0"></a><div>
THIS STATES WHERE YOU LIVE, NOT ME, IT SAYS WHERE YOU LIVE BASED ON YOUR IP ADRESS.
User avatar
blind909
Brigadier General
Brigadier General
 
Posts: 828
Joined: Thu Aug 02, 2007 6:06 pm
Location: Las Vegas, NV
Reputation: 1

Unread postAuthor: ainsworth112294 » Tue Aug 26, 2008 10:53 pm

well what would i use to make that 1/4 qev
  • 0


ainsworth112294
Private
Private
 
Posts: 11
Joined: Tue Aug 26, 2008 3:06 pm
Reputation: 0

Unread postAuthor: blind909 » Tue Aug 26, 2008 10:55 pm

ainsworth112294 wrote:well what would i use to make that 1/4 qev


You Dont make the QEV, You buy the QEV, its just the valve. Look at my edit in the above post.
  • 0

<a href="http://www.danasoft.com"><img src="http://www.danasoft.com/citysign.jpg" border="0"></a><div>
THIS STATES WHERE YOU LIVE, NOT ME, IT SAYS WHERE YOU LIVE BASED ON YOUR IP ADRESS.
User avatar
blind909
Brigadier General
Brigadier General
 
Posts: 828
Joined: Thu Aug 02, 2007 6:06 pm
Location: Las Vegas, NV
Reputation: 1

Unread postAuthor: ainsworth112294 » Tue Aug 26, 2008 10:58 pm

eddbot i saw blind 909s post first not arrons and blind said the guy made his or i was just confused

so where wold i buy 1 of these valves and what does the blowgun do[/quote]
  • 0


ainsworth112294
Private
Private
 
Posts: 11
Joined: Tue Aug 26, 2008 3:06 pm
Reputation: 0

Unread postAuthor: microman171 » Tue Aug 26, 2008 11:39 pm

Mc Master Carr has them I think (not really into the whole QEV scene as they would cost so much to ship to New Zealand). What you gotta do is make a camber and connect that to the in port. They you put a barrel on the out port (or a piston valve). Lastly you put a pilot (eg a blow gun valve) on the pilot port.
  • 0


microman171
Sergeant Major
Sergeant Major
 
Posts: 189
Joined: Wed Apr 30, 2008 11:49 pm
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: potatoflinger » Wed Aug 27, 2008 4:52 am

This is where I bought the QEV that is used on that gun. If you live in the U.S. there is a good chance that they have a store near you, if not, you could try McMaster.

The blowgun is used to pilot the QEV.
  • 0

It's hard to soar with eagles when you're working with turkeys.
User avatar
potatoflinger
Brigadier General
Brigadier General
 
Posts: 1136
Joined: Thu Nov 02, 2006 3:26 pm
Location: Maryland
Reputation: 1

Unread postAuthor: far_cry » Thu Aug 28, 2008 11:16 am

  • 0

User avatar
far_cry
Donating Member
Donating Member
 
Posts: 317
Joined: Wed Aug 20, 2008 3:59 pm
Reputation: 0

Unread postAuthor: Carlman » Thu Aug 28, 2008 11:38 am

microman171 wrote:Mc Master Carr has them I think (not really into the whole QEV scene as they would cost so much to ship to New Zealand). What you gotta do is make a camber and connect that to the in port. They you put a barrel on the out port (or a piston valve). Lastly you put a pilot (eg a blow gun valve) on the pilot port.


pilot goes on the out port not pilot port (EXH) barrel goes on EXH
  • 0

Image
Aussie spudders unite!!
User avatar
Carlman
Major General
Major General
 
Posts: 1618
Joined: Sat Nov 24, 2007 1:18 am
Location: Western Australia
Reputation: 0

Unread postAuthor: frankrede » Thu Aug 28, 2008 12:18 pm

far_cry wrote:there is a video how to biuld a qev
http://www.youtube.com/watch?v=b4ZgXqiaySc&feature=user&fmt=18
Thats just a piston valve made out of french plumbing parts.
  • 0

Current project: Afghanistan deployment
User avatar
frankrede
Lieutenant General
Lieutenant General
 
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Reputation: 0

Unread postAuthor: far_cry » Thu Aug 28, 2008 2:25 pm

frankrede wrote:
far_cry wrote:there is a video how to biuld a qev
http://www.youtube.com/watch?v=b4ZgXqiaySc&feature=user&fmt=18
Thats just a piston valve made out of french plumbing parts.


if you mentioned that , the ((just a piston valve)) you call it , whats the difference between him and the qev and ho is better??
  • 0

User avatar
far_cry
Donating Member
Donating Member
 
Posts: 317
Joined: Wed Aug 20, 2008 3:59 pm
Reputation: 0

Unread postAuthor: MrCrowley » Thu Aug 28, 2008 2:56 pm

A QEV is just a piston or diaphragm valve that is commercially made to release air quickly. They come in all shapes and sizes.

Which is better depends on a huge amount of factors.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: far_cry » Thu Aug 28, 2008 3:06 pm

in high pressures 400 psi and up
  • 0

User avatar
far_cry
Donating Member
Donating Member
 
Posts: 317
Joined: Wed Aug 20, 2008 3:59 pm
Reputation: 0

Unread postAuthor: POLAND_SPUD » Thu Aug 28, 2008 3:17 pm

hmmm lets put it like this...
every dog is an animal but not every animal is a dog :wink:

it the exactly the same with QEVs&piston valves

Every QEV is a piston valve but not every piston valve is a qev...


a QEV is just a piston valve that you can buy..

you can build your own piston valve if you want to (or if you can't find QEVs in isreal)... it's easy if you understand how they work... look here --> piston valves


I have this model of a QEV valve http://www.teamonslaught.fsnet.co.uk/qev.jpg (it's one of the most popular type/model in europe) and I use it at up to 500 psi and they are fine at such pressures...
  • 0

Children are the future

unless we stop them now
User avatar
POLAND_SPUD
Chief of Staff
Chief of Staff
 
Posts: 5405
Joined: Sat Oct 13, 2007 4:43 pm
Country: Israel (il)
Reputation: 10

Next

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Yahoo [Bot]

Reputation System ©'