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 60 users online :: 5 registered, 0 hidden and 55 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Huge Piston Valve

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

Huge Piston Valve

Unread postAuthor: patton » Tue Nov 06, 2007 11:00 pm

Has anyone tried to make a pisotn valve out of a 6" Tee Joint. What do you all think will happen?
  • 0

User avatar
patton
Private
Private
 
Posts: 23
Joined: Wed Oct 31, 2007 3:52 pm
Reputation: 0

Unread postAuthor: PVC Arsenal 17 » Tue Nov 06, 2007 11:01 pm

Yes

It will shoot stuff.
  • 0


PVC Arsenal 17
Major General
Major General
 
Posts: 1762
Joined: Mon Mar 27, 2006 4:18 pm
Location: United States
Reputation: 1

Unread postAuthor: cwazy1 » Tue Nov 06, 2007 11:29 pm

LOl good answer.
  • 0


cwazy1
Captain
Captain
 
Posts: 305
Joined: Mon Sep 10, 2007 8:31 pm
Reputation: 0

Unread postAuthor: unisonmind » Tue Nov 06, 2007 11:37 pm

thats a lot of money the tee by its self is like $40 hope you don't mess up
  • 0

THE DIFFERENCE BETWEEN A FLOWER AND A WEED IS A JUDGEMENT
User avatar
unisonmind
Staff Sergeant
Staff Sergeant
 
Posts: 118
Joined: Wed Jan 24, 2007 9:25 pm
Reputation: 0

Unread postAuthor: gwoloshyn » Tue Nov 06, 2007 11:55 pm

Yeah that really sucks how they get that damn expensive.. the most I can afford is maybe a 4"
  • 0

User avatar
gwoloshyn
Staff Sergeant
Staff Sergeant
 
Posts: 116
Joined: Thu Jul 05, 2007 2:06 pm
Reputation: 0

Unread postAuthor: LikimysCrotchus5 » Wed Nov 07, 2007 12:42 am

yea there is a cannon im going to find it. Its on this webiste
this and this
  • 0

4SPC, My 4" piston 3" porting cannon
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
User avatar
LikimysCrotchus5
Brigadier General
Brigadier General
 
Posts: 1100
Joined: Tue Sep 04, 2007 10:16 pm
Reputation: 0

Unread postAuthor: psycix » Wed Nov 07, 2007 5:47 am

The bigger the valve, the better the flow.
And its more expensive ofcourse.
  • 0

User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: MaxuS » Wed Nov 07, 2007 11:27 am

$40, what are you complaining about? Over here in the uk, a 6" would cost about $250.
  • 0

User avatar
MaxuS
Sergeant Major
Sergeant Major
 
Posts: 198
Joined: Sun Sep 02, 2007 5:11 pm
Reputation: 0

Unread postAuthor: spanerman » Wed Nov 07, 2007 12:19 pm

a 160mm would be cheaper though, same size almost aswell
  • 0

Image

spanerman
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 438
Joined: Sun Sep 17, 2006 2:54 pm
Reputation: 0

Unread postAuthor: williamfeldmann » Wed Nov 07, 2007 12:33 pm

I just (about) completed a 6 inch tee valve. They work like any other tee valve, just bigger. Expect to pay handsomely for it.

$48 for sch 80 tee
~$10 a piece for the 4 inch porting bushing at the front, 2 inch porting bushing at the pilot, etc.
$60 for the 2 inch sprinkler pilot valve (still have to get)
plus the cost of your piston

What I learned:

1. Spend the moneys for the sch 80 stuff or you are sevely limited by pressure (Plumb Supply told me the sch 40 maxs around 120 psi)

2. Plan for a big enough pilot valve, and for the piston to hit the pilot bushing like a freight train. Major strength issues arose.

3. Design your piston for weight, not fit. Don't attempt a chamber sealer, unless you really have good tools and know what you are doing. The size make this difficult. My piston is roughly 6 inches in length and would weigh a ton if not foam cored.

4. This is not a weekend project, I can build a 2 inch in around an hour plus cement drying time. It took me nearly 20 hours to build this monster and it isn't totally finished yet due to pilot issues.

But on the bright side, it will make an excellent winter project, when you can't be shooting. If you are really serious about it, go for it but plan. Its a lot of money if it doesn't work out.


@Likimychrotchus

Both of those cannons use 4 inch tees. They have 6 inch chambers but size down to 4 inch inlets
  • 0

Last edited by williamfeldmann on Tue Nov 13, 2007 12:10 pm, edited 1 time in total.
Trying to figure out how to make a SCUBA first stage regulator work for portable charging station. If only that pesky job thing didn't keep eating up all my time...

"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." - Albert Einstein
User avatar
williamfeldmann
2nd Lieutenant
2nd Lieutenant
 
Posts: 216
Joined: Sun Sep 09, 2007 6:55 pm
Location: Ames. Iowa, middle of BFE
Reputation: 0

Unread postAuthor: patton » Thu Nov 08, 2007 10:35 pm

wow sounds intense. Please post those pictures when you are done and give us some numbers with them.
  • 0

User avatar
patton
Private
Private
 
Posts: 23
Joined: Wed Oct 31, 2007 3:52 pm
Reputation: 0

Unread postAuthor: LikimysCrotchus5 » Thu Nov 08, 2007 10:46 pm

o well :oops: , you get my point :D
  • 0

4SPC, My 4" piston 3" porting cannon
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
User avatar
LikimysCrotchus5
Brigadier General
Brigadier General
 
Posts: 1100
Joined: Tue Sep 04, 2007 10:16 pm
Reputation: 0

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'