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 44 users online :: 5 registered, 0 hidden and 39 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Connecting shrader, blow off, pressure gauge

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

Connecting shrader, blow off, pressure gauge

Unread postAuthor: ZeroGz » Wed May 26, 2010 12:34 pm

Building my first pneumatic and want to make sure i do the right things here. From searching ,i know i need to tap at double wall joints. Do i simply self thread them in after drilling and then coat on both sides with silicon or epoxy. I just want to make sure i don't blow one of these out.

Thanks
  • 0


ZeroGz
Private
Private
 
Posts: 3
Joined: Mon Apr 19, 2010 10:23 am
Reputation: 0

Unread postAuthor: theBOOM » Wed May 26, 2010 3:20 pm

It's pvc right??? Just buy the tap and the drill that goes along with the size tap, drill the hole straight up and down, not to the sides. If you have a drill press it's even better and easier. Next you might wanna put some grease to cut the threade easily and start tapping, once your done, clean off the grease and put on the fitting you want.
  • 0

User avatar
theBOOM
Major
Major
 
Posts: 374
Joined: Wed Jun 03, 2009 10:49 pm
Location: San Antonio, TX
Reputation: 0

Unread postAuthor: clemsonguy1125 » Wed May 26, 2010 3:25 pm

Im not saying this is a great idea but I use the non threaded kind, drill a hole, pull the valve through and wrap rubber bands around it to seal it off
  • 0

That is all.
User avatar
clemsonguy1125
Major General
Major General
 
Posts: 1485
Joined: Tue Jul 21, 2009 4:00 pm
Location: East Coast
Reputation: 1

Unread postAuthor: ZeroGz » Wed May 26, 2010 3:46 pm

Thanks for the suggestions guys. Exactly what I needed. I want to tap as few holes as possible. I will go ahead and tap.

Yes - all PVC - schedule 40 with a 1" modified sprinkler valve

I am trying to find a piece like what these Systm guys used on their bigger pneumatic cannon that basically has the shrader, blow off, and guage all screwed into it.

http://revision3.com/systm/spud/?fs


Anyone know what that is?
  • 0


ZeroGz
Private
Private
 
Posts: 3
Joined: Mon Apr 19, 2010 10:23 am
Reputation: 0

Unread postAuthor: theBOOM » Wed May 26, 2010 4:38 pm

Um I'd help but I don't really want to look over a 23 minute video, take a picture of what you are trying to achieve here and we'll help you out. If you want all those things in one, you could simply tap it a male tee, and add what you want from there, that will probably work, but again, im not sure what you're trying to do here.
  • 0

User avatar
theBOOM
Major
Major
 
Posts: 374
Joined: Wed Jun 03, 2009 10:49 pm
Location: San Antonio, TX
Reputation: 0

Unread postAuthor: chinnerz » Wed May 26, 2010 4:39 pm

clemsonguy1125 wrote:Im not saying this is a great idea but I use the non threaded kind, drill a hole, pull the valve through and wrap rubber bands around it to seal it off

If there are no threads on your valve, gram something with threads, like brass compressor fittings. Then drill a hole which allows a 'just fit' for the valve, then either solder or epoxy it into place.

I have placed all of my fill valves etc, into an end cap. I havnt had any blowouts at 120psi
  • 0

Image
User avatar
chinnerz
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 470
Joined: Mon Dec 28, 2009 8:08 am
Reputation: 0

Unread postAuthor: clemsonguy1125 » Wed May 26, 2010 4:47 pm

Or buy a threaded tee and buy the galvinised steel threaded bushings, that's what I did on my bb gun
  • 0

That is all.
User avatar
clemsonguy1125
Major General
Major General
 
Posts: 1485
Joined: Tue Jul 21, 2009 4:00 pm
Location: East Coast
Reputation: 1

Sponsored

Sponsor
 


Unread postAuthor: Lockednloaded » Wed May 26, 2010 5:52 pm

You can use a three-way manifold like thy use on compressors if you only want to drill one hole. At home depot or lowes they are in the air tool section for about ten dollars
  • 0

I love lamp
User avatar
Lockednloaded
Major General
Major General
 
Posts: 1558
Joined: Thu Sep 03, 2009 9:38 pm
Location: Texas, USA
Reputation: 0

Unread postAuthor: theBOOM » Wed May 26, 2010 6:11 pm

Instead of waisting 10 dollars he could simply buy a threaded tee like I suggested, make sure its male threads and its the appropriate size for the tap, I'd try and get a 1/4" Tee with male threads. From there you could add another tee if you need more things added to this "manifold" type thing.
  • 0

User avatar
theBOOM
Major
Major
 
Posts: 374
Joined: Wed Jun 03, 2009 10:49 pm
Location: San Antonio, TX
Reputation: 0

Unread postAuthor: deathbyDWV » Wed May 26, 2010 7:44 pm

I just like how they say "300 yard tennis ball chuck" with a sprinkler valve... Seems like they might have measured wrong... :lol:
  • 0

Life's too short to mark off the items on your wish list...
User avatar
deathbyDWV
Colonel
Colonel
 
Posts: 576
Joined: Sat May 16, 2009 4:02 pm
Location: Owasso, OK
Reputation: 2

Unread postAuthor: Technician1002 » Thu May 27, 2010 12:29 am

I'm not sure where the 300 yard reference is in this thread. I do know that an unmodified tennis ball is difficult to chuck 300 yards. I've launched them at 100 PSI and measured the range using a 2 inch valve with higher performance than a 2 inch sprinkler valve. The range is less then 300 yards. 200 is barely reachable in still air.

300 feet is easily reachable with a tennis ball.
  • 0

User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Unread postAuthor: ZeroGz » Thu May 27, 2010 10:19 am

Guys. Thanks for all of the suggestions. Now I am clear. I will post pics of the finished gun next week.
  • 0


ZeroGz
Private
Private
 
Posts: 3
Joined: Mon Apr 19, 2010 10:23 am
Reputation: 0

Unread postAuthor: Gun Freak » Thu May 27, 2010 3:34 pm

Instead of wasting your time with tap and wasting the money, just get a threaded adapter and bushings, then it ensures no leaks or blow-outs.
  • 0

OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna"M16 BBMGPengunHammer Valve Airsoft SniperHigh Pressure .22 Coax
Holy Shat!
User avatar
Gun Freak
Lieutenant General
Lieutenant General
 
Posts: 4969
Joined: Mon Jan 25, 2010 4:38 pm
Location: Florida
Country: United States (us)
Reputation: 11

Unread postAuthor: theBOOM » Thu May 27, 2010 9:40 pm

Actually from what I've heard, you can actually tap plastics like PVC with only the metal fitting threads, you just wrench it on and it creates threads itself. Note, I haven't actually ever tried this as I believe you wont get straight threads but it might help save some money. :roll:
  • 0

User avatar
theBOOM
Major
Major
 
Posts: 374
Joined: Wed Jun 03, 2009 10:49 pm
Location: San Antonio, TX
Reputation: 0

Unread postAuthor: Lockednloaded » Thu May 27, 2010 11:12 pm

the best way in my opinion is to get say a 1/4" threaded hose barb and put the barb it your drill. drill a hole a little smaller than you need than drill th barb into the threads first and it wil carve its own threads. you can then remove it and put 1/4" fittings in.
  • 0

I love lamp
User avatar
Lockednloaded
Major General
Major General
 
Posts: 1558
Joined: Thu Sep 03, 2009 9:38 pm
Location: Texas, USA
Reputation: 0

Next

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Google Adsense [Bot], MCRKilljoy

Reputation System ©'