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 67 users online :: 4 registered, 0 hidden and 63 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

supahvalve -VS- pistonvalve

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

supahvalve -VS- pistonvalve

Unread postAuthor: roughboy » Tue Sep 12, 2006 2:20 am

which is the best valve to use a supahvalve or a pistonvalve? Why?

which of this two can i use on 250psi?
  • 0

User avatar
roughboy
Sergeant Major
Sergeant Major
 
Posts: 197
Joined: Fri May 12, 2006 12:43 am
Reputation: 0

Unread postAuthor: MrCrowley » Tue Sep 12, 2006 2:35 am

a supah is a piston valve.....chamber sealing piston valve to be exact.
not sure if supahs are rated to 250psi,im pretty sure they arnt, so just build a metal cannon or buy sch120 parts which will cost you alot.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: Pete Zaria » Tue Sep 12, 2006 2:36 am

The Supah Valve is probably faster-opening than a home made piston valve could ever be, however, it's only rated to 120 PSI. I suspect it could take more, but don't push it. A home-made piston valve made from the right parts could handle 250 PSI but it would be expensive.

Peace,
Pete Zaria.
  • 0

User avatar
Pete Zaria
Moderator
Moderator
 
Posts: 978
Joined: Fri Mar 31, 2006 6:04 pm
Location: Near Seattle, WA
Reputation: 0

Unread postAuthor: CS » Tue Sep 12, 2006 2:55 am

Supah Valve-
-It is a tried and true valve that despite long waits needed to acquire it and the money spent, its reliable. Never heard of a non-working, or 'lemon'. Versus that of a homemade valve, its made to within close tolerances. Small 'squeezes' on the oring allow the friction of the piston to be much less. The piston is fairly light, allowing faster opening times.

PROS-
-Reliable
-Made with quality
-Nice looking
CONS-
-Cost the sh*t
-Only 2" inlet
-Long wait time for valve
-No satisfaction that you built it

Homemade Valve-
-Usally a primer stained failure. The ragged looks on much dont make them very appeling. Prone to failure, requiring much tampering, and accepting failure. Cheaper. Allows you to build it yourself gaining satisifaction. Performance generally greatly lower then that of a 'Supah' due to terribly inaccurate standards, methods, and tools.

PROS-
-Cheap
-I built this myself
-No waiting time required to acquire
CONS-
-Generally ugly
-Requires much work to work
-Performance sucks
  • 0

User avatar
CS
Donating Moderator
Donating Moderator
 
Posts: 1897
Joined: Fri Feb 18, 2005 5:32 pm
Location: Southern Utah
Country: United States (us)
Reputation: 4

Unread postAuthor: MrCrowley » Tue Sep 12, 2006 3:07 am

i thought he made special ones at 4" or is that his megah?and you said long wait time for valve?......oh crap dont worry i thought you meant that the valve after being actuated took awhile to move as ive heard in another thread were it takes time to dump the pilot.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: CS » Tue Sep 12, 2006 3:33 am

'Normal' Supahs incase the piston within a 3" T having it seal against a 2" sch 40 seat. Therefore, regardless of any other compents, that means the flow is choked down to 2". He has made the 4" T Supahs to my knowledge with a 3" sch 40 seat, but doesnt sell them since they have yet to be 'tested'. Although I think the whole 'testing' bit is just to cover for his lazyness as something about him being concerned about safety of users. Hell this is the person that still has the same photos from a previous owner years ago! Dont get me started...

and you said long wait time for valve?......oh crap dont worry i thought you meant that the valve after being actuated took awhile to move as ive heard in another thread were it takes time to dump the pilot. ~MrCrowley

Is this a damn chat room? No, but you treat it as if it was so. I mean if I never used the 'Backspace' button my posts would be A LOT longer... If you misunderstood something in your post, just delete it and stop wasting our time, and pat yourself on the back since your smart enough to figure it out. Id venture to speculate that 99% of my spud related chats occuring over AIM far surpass the quality and format that your posts here on the forum contain. Bah! This forum is a ever deepining sh*thole.

To the issue. Yes, as I understand, and what I saw from the photos of the inards of the 'Supah' it appears it has a fairly small pilot volume, which would obviously yeild higher performance.
  • 0

User avatar
CS
Donating Moderator
Donating Moderator
 
Posts: 1897
Joined: Fri Feb 18, 2005 5:32 pm
Location: Southern Utah
Country: United States (us)
Reputation: 4

Unread postAuthor: mark.f » Tue Sep 12, 2006 5:56 am

Pimpmann, I suggest you take another look at some of Rmich's piston valves before you call all homemade ones primer-stained failures. :wink:
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Sponsored

Sponsor
 


Unread postAuthor: killagorrila99 » Tue Sep 12, 2006 6:15 am

Your all really dumb. The supah valve is home made. Its home made by joel surprise!
  • 0

"I'm sorry, Mr.Bush cant come to the phone right now, He's playing cleudo with Mr. Cheney And he has him in the Cupboard with a broom stick" -White house receptionist.
User avatar
killagorrila99
Brigadier General
Brigadier General
 
Posts: 1101
Joined: Tue Jul 25, 2006 2:35 am
Location: Australia.
Reputation: 0

Unread postAuthor: MrCrowley » Tue Sep 12, 2006 2:51 pm

yeah, we all know that,were not stupid but we dont call it home-made as his uses a lathe and is built to precision(sp?),whereas ours are usally made without a lathe and are built all over the place,i mean some people build them really well,some people dont, whereas joel alwayz builds them really well.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: Infernal Maveric » Tue Sep 12, 2006 3:01 pm

If you don't mind spening $100+ for your Supah valve, and don't mind aiting 5+ months for it to arrive, then I guess a supah valve isvery good valve that won't let you down. Joel knows what he is doing and has all the right tools to make it work. Perfectly.

With making a custon piston valve, you run the risk of wasting parts if it ends up being a peice of crap due to the piston not seating or the pilot being to big or what ever other reason. But if you do manage to make a decent working piston valve then its well worth the (minimal) effort to make one, as a fully working piston gun can be made in about a day and under $50.

Just depends realy if you want to run the risk of it not working and you egtting (very) mad, or to dish out $100+ on the VALVE and wait a good half year to get it.
  • 0

User avatar
Infernal Maveric
2nd Lieutenant
2nd Lieutenant
 
Posts: 220
Joined: Sat Oct 08, 2005 3:41 pm
Reputation: 0

Unread postAuthor: Brian the brain » Tue Sep 12, 2006 3:10 pm

Still won't take 250 psi, wich was his question.
You'd still have to make your own if you so desperately want to get it up to 250 psi.
You've probably never seen what a 2"opening does at 120 psi...
Who would need 250??
Well whatever..
I would recommend metal( what else) for such pressures.
Of course, big metal fittings tend to cost a lot....
  • 0

Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
User avatar
Brian the brain
Moderator
Moderator
 
Posts: 3494
Joined: Mon Dec 05, 2005 2:06 am
Location: Holland
Country: Netherlands (nl)
Reputation: 29

Unread postAuthor: CS » Wed Sep 13, 2006 1:19 am

killagorrila99, thanks for cluttering this forum with your commentary.

Pimpmann, I suggest you take another look at some of Rmich's piston valves before you call all homemade ones primer-stained failures. ~markfh11q

USALLY a primer stained failure. ~Pimpmann22


Keyword: Usally
That word was included to exclude some valves that ive seen that are nice. Some of which are constructed by Rmich, BLB, and Plow.
  • 0

User avatar
CS
Donating Moderator
Donating Moderator
 
Posts: 1897
Joined: Fri Feb 18, 2005 5:32 pm
Location: Southern Utah
Country: United States (us)
Reputation: 4

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'