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 26 users online :: 5 registered, 0 hidden and 21 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Pilotting with a QEV?

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

Pilotting with a QEV?

Unread postAuthor: Tipsypyro » Sun Feb 15, 2015 6:27 pm

I know ahead of time that this is probably a dumb question, but I have been raking through the archived posts for the last few nights hoping to find what I need and it may just be that I am getting kinda dense.
I built a 2.5" launcher with a 2" Galcon diaphragm valve and used a 3/4" Orbit sprinkler valve to trigger it. It works awesome but after a while the weight of this thing hanging off the side and a couple bumps on door frames developed a leak on the threads into the lid of the Galcon. I also had a small coaxial I needed to pilot faster so I bought 2 0.5" QEVs online. The little black box valves with no spring or anything. For some reason, I can't seem to wrap my head around a way to use them the same way as the sprinkler. Do I need to vent the piston and add a spring on the pilot port? I know it's probably right in front of me and if so, I apologize for wasting the space. :oops:
  • 0

As within, so without. As above, so below.
User avatar
Tipsypyro
Private
Private
 
Posts: 13
Joined: Tue Jan 28, 2014 2:50 pm
Country: United States (us)
Reputation: 0

Re: Pilotting with a QEV?

Unread postAuthor: jackssmirkingrevenge » Tue Feb 17, 2015 9:10 am

The QEV should have three ports labelled R, A and P

R - barrel, A - chamber and P - pilot
  • 1

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Re: Pilotting with a QEV?

Unread postAuthor: Tipsypyro » Tue Feb 17, 2015 1:18 pm

Yes, it does. My question is how do I equalize the pilot area?
Ok, I got it working by drilling the piston and putting in a spring. I will post some aftermath as soon as it warms up a little.
  • 0

As within, so without. As above, so below.
User avatar
Tipsypyro
Private
Private
 
Posts: 13
Joined: Tue Jan 28, 2014 2:50 pm
Country: United States (us)
Reputation: 0

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'