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 65 users online :: 4 registered, 0 hidden and 61 guests


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

Registered users: Bing [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

Slow Valve

A place to ask general spud cannon related questions.
Sponsored 
  • Author
    Message

Slow Valve

Unread postAuthor: mi_july » Wed Mar 29, 2006 7:04 am

Hey guys, Im new here, but i have a problem and you guys seem to be the pro's! I have a pneumatic spud gun with a 50cm 4inch chamber and a 2inch metre long barrel, now whenever i charge up my chamber and release the valve id say it takes a good 10seconds to empty all the air out!! is this something wrong with my valve...or is this normal?? any help or thoughts would be apreciated!
  • 0


mi_july
Private
Private
 
Posts: 2
Joined: Wed Mar 29, 2006 6:59 am
Reputation: 0

Unread postAuthor: Rambo » Wed Mar 29, 2006 8:02 am

What's the valve?If 90% of the air get out for the first ms...It will work well.
  • 0

User avatar
Rambo
Colonel
Colonel
 
Posts: 509
Joined: Sun Jan 15, 2006 2:07 pm
Reputation: 0

Unread postAuthor: boilingleadbath » Wed Mar 29, 2006 4:20 pm

I assume this is a sprinkler valve: there's a spring, so at low pressures (typicaly after the projectile has left the barrel) the valve would tend to reseal - and thus it can take some time to vent compleatly.
However, the valve will be fully open when there's high pressure in the valve, ie during launch, so it won't affect valve preformance.
  • 0

User avatar
boilingleadbath
Moderator
Moderator
 
Posts: 1642
Joined: Sat Mar 12, 2005 10:35 pm
Location: Pennsylvania, USA
Reputation: 0

Unread postAuthor: nicholai » Wed Mar 29, 2006 6:04 pm

is it a sprinkler valve modified for pneumatic actuation? i made the mistake of threading too deep into the cap of an orbit watermaster. it prevents the phragm from opening all the way making the valve very weak even at high pressures. i think i ended up making the hole bigger and reduced the threads down to 3/8 for the blowgun but it still didnt work out that good. I ended up blasting 150 lbs through it rapidly and the center of the phragm got torn up.
  • 0

Image
User avatar
nicholai
Captain
Captain
 
Posts: 349
Joined: Wed Jan 04, 2006 4:18 pm
Location: Maine
Reputation: 0

Unread postAuthor: schmanman » Wed Mar 29, 2006 6:13 pm

does it have flow control.if so,than turn it all the way up to the highest flow
  • 0

User avatar
schmanman
Major General
Major General
 
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Country: United States (us)
Reputation: 0

Unread postAuthor: mi_july » Thu Mar 30, 2006 4:21 pm

Its ok lads, we found a solution, we just pump it up to the right pressure and take the solenoid out so the whole top chamber equalizes quicker it seems to work a lot better!..
  • 0


mi_july
Private
Private
 
Posts: 2
Joined: Wed Mar 29, 2006 6:59 am
Reputation: 0

Return to General Spud Cannon Related

Who is online

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

Reputation System ©'