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 69 users online :: 5 registered, 0 hidden and 64 guests


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

Registered users: Bing [Bot], Google [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

make a BQE-04 qev seals.

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

make a BQE-04 qev seals.

Unread postAuthor: victorjung » Sun Nov 06, 2011 5:56 am

Hi everybody at first I want to apologize for my english...
I bought a BQE-04 on ebay, so it's a qev with 1/2" ports.
it seems to be great but I want to fill my gun through the chamber.
To make the diaphragm seal again after each shoot I put a spring behind it.
My problems are when release the air from the chamber to the qev to be ready to shoot, all the air exit through the barrel cause the qev wasn't sealed properly why???
any ideas?
Ps my pilot is a blow gun and i'm pretty sur it's proof with the qev!
Here is a draw of my qev:
  • 0

Attachments
qev.png
(eddbot i pimped a little youre)

victorjung
Private
Private
 
Posts: 20
Joined: Sun Nov 06, 2011 5:31 am
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Sun Nov 06, 2011 6:19 am

Did you make a small (small, really small, a pin hole) hole in the outer side of the diaphragm to be able to equalise?
  • 0

Attachments
semiautoqev.png
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

Unread postAuthor: victorjung » Sun Nov 06, 2011 7:49 am

No i didn't, i gona try.
But a qev isn't already done to equalise?
Thank's for the tip.
  • 0


victorjung
Private
Private
 
Posts: 20
Joined: Sun Nov 06, 2011 5:31 am
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Sun Nov 06, 2011 7:52 am

victorjung wrote:But a qev isn't already done to equalise?


The diaphragm is a cup seal, it lets air go from the pilot to the chamber, but if air tries to go from the chamber to the pilot, it will press against the walls and not let it in.

Remember, very small pin hole.
  • 0

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

Unread postAuthor: victorjung » Sun Nov 06, 2011 1:23 pm

i made the hole, with a really small nail and it's working now!
thx!!!
  • 0


victorjung
Private
Private
 
Posts: 20
Joined: Sun Nov 06, 2011 5:31 am
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Mon Nov 07, 2011 12:42 am

Glad it worked out for you :) let's see it in action!
  • 0

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

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'