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 :: 5 registered, 0 hidden and 62 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Source for large valves?

All non-spudgun related discussion goes here such as projects, theories, serious questions, etc. All "off-topic" posts (aka useless posting, determined by moderators) will be removed.
Sponsored 
  • Author
    Message

Unread postAuthor: jeepkahn » Tue Aug 18, 2009 1:45 pm

With you're budget and facilities you could build a 6" all steel supah/mauler type valve to fit your specs quite handily I would imagine...
  • 0

My Cannons can be found by clicking the following link.
http://www.spudfiles.com/forums/viewtop ... tml#256896

jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

Unread postAuthor: dewey-1 » Tue Aug 18, 2009 2:40 pm

D_Hall wrote:That's what we're talking about.

A pulse valve and a QEV are the same thing just used by different industries. If you're cleaning out pipes, you call it a pulse valve. If you're relieving a pressure vessel, you call it a QEV.

But having visited Asco's site last night, I'm currently leaning towards 10 3" valves.


Speaking of ASCO valves, what ever became of this project?

http://www.spudfiles.com/forums/interes ... 17574.html

Any update to this posting would be interesting!

If you want 3D CAD drawings of this valve let me know.
  • 0

User avatar
dewey-1
Major General
Major General
 
Posts: 1298
Joined: Wed Mar 28, 2007 10:24 am
Location: NE Wisconsin USA
Reputation: 0

Unread postAuthor: Willdebeers » Tue Aug 18, 2009 4:06 pm

jeepkahn wrote:With you're budget and facilities you could build a 6" all steel supah/mauler type valve to fit your specs quite handily I would imagine...


Wow, that would be cool. but the costs would be astronomical... :shock:
  • 0

Image
User avatar
Willdebeers
2nd Lieutenant
2nd Lieutenant
 
Posts: 214
Joined: Tue Feb 03, 2009 1:18 pm
Reputation: 0

Unread postAuthor: jeepkahn » Tue Aug 18, 2009 5:21 pm

Willdebeers wrote:
jeepkahn wrote:With you're budget and facilities you could build a 6" all steel supah/mauler type valve to fit your specs quite handily I would imagine...


Wow, that would be cool. but the costs would be astronomical... :shock:


for the pressures he's wanting, they could be built prolly for less than $100 by an individual, but that equates to $10,000 if the taxpayers are covering it...lol
  • 0

My Cannons can be found by clicking the following link.
http://www.spudfiles.com/forums/viewtop ... tml#256896

jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

Unread postAuthor: D_Hall » Tue Aug 18, 2009 7:27 pm

dewey-1 wrote:
D_Hall wrote:That's what we're talking about.

A pulse valve and a QEV are the same thing just used by different industries. If you're cleaning out pipes, you call it a pulse valve. If you're relieving a pressure vessel, you call it a QEV.

But having visited Asco's site last night, I'm currently leaning towards 10 3" valves.


Speaking of ASCO valves, what ever became of this project?

http://www.spudfiles.com/forums/interes ... 17574.html

Any update to this posting would be interesting!

It's sitting in my garage awaiting installation of the pilot valve. Everything else is done... But I've been getting my gun jollies from Vera as late so I haven't been inspired to finish it.
  • 0

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: D_Hall » Tue Aug 18, 2009 7:28 pm

jeepkahn wrote:for the pressures he's wanting, they could be built prolly for less than $100 by an individual, but that equates to $10,000 if the taxpayers are covering it...lol

Well, given that a failure of the valve(s) in question would cost about $250,000? Yeah, I'm willing to spend a bit more to have a proper engineering analysis and such performed.
  • 0

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: ramses » Tue Aug 18, 2009 7:57 pm

D_Hall wrote:
jeepkahn wrote:for the pressures he's wanting, they could be built prolly for less than $100 by an individual, but that equates to $10,000 if the taxpayers are covering it...lol

Well, given that a failure of the valve(s) in question would cost about $250,000? Yeah, I'm willing to spend a bit more to have a proper engineering analysis and such performed.


Or you could just overbuild to the degree that there is almost zero chance of failure. That would be cheaper, and take less time.


I second the ball valve, only with a leadscrew-type actuator. 8 TPI would allow reasonably fast actuation. 12" travel in 4 seconds would require 24 rpm. 24" in 1 second would need 192, which is still very doable. The problem is that 8TPI isn't available until 1" OD threaded rod...
  • 0

POLAND_SPUD wrote:even if there was no link I'd know it's a bot because of female name :D
User avatar
ramses
Major General
Major General
 
Posts: 1679
Joined: Thu May 29, 2008 6:50 pm
Reputation: 3

Sponsored

Sponsor
 


Unread postAuthor: D_Hall » Tue Aug 18, 2009 8:18 pm

And if that really conservative valve that you didn't take the time to analyze takes 6 seconds to open, and not 5.... That'll be $250,000 please. We get ONE shot at this. If it doesn't work absolutely perfectly the first time, game over. There are no second chances.

We HAVE 6" ball valves lying around. Several of them, actually. I don't trust any of them to actuate on the timelines I need. We just don't find them to be that repeatable.
  • 0

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: ramses » Tue Aug 18, 2009 8:36 pm

God, I wish I knew what you were doing. That would make helping you so much easier, although I can speculate...

as far as my over-built valve, It could be tested while not connected to this $250,000 thing. If it takes 6 seconds, just apply more power to whatever is opening it until it opens in 5.

but that isn't solving your problem (unless you listen :D ). What about multiple ball valves in parallel. A separate actuator/button/powersupply/gravity field for each. Push 3 buttons, all 3 valves open. One jams, one gets smited, you still have one that opened.
  • 0

POLAND_SPUD wrote:even if there was no link I'd know it's a bot because of female name :D
User avatar
ramses
Major General
Major General
 
Posts: 1679
Joined: Thu May 29, 2008 6:50 pm
Reputation: 3

Unread postAuthor: jeepkahn » Wed Aug 19, 2009 8:33 am

D_Hall wrote:
jeepkahn wrote:for the pressures he's wanting, they could be built prolly for less than $100 by an individual, but that equates to $10,000 if the taxpayers are covering it...lol

Well, given that a failure of the valve(s) in question would cost about $250,000? Yeah, I'm willing to spend a bit more to have a proper engineering analysis and such performed.


But you understand what I'm saying... Considering the cost of a failure, it would be prudent to build a valve to do exactly what you want as opposed to buying a valve... Again, if we knew what role the valve was playing, it would help the suggestors...

Is it a safety vent, is it a fill valve, is it a fueling valve, etc...
  • 0

My Cannons can be found by clicking the following link.
http://www.spudfiles.com/forums/viewtop ... tml#256896

jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

Unread postAuthor: D_Hall » Wed Aug 19, 2009 12:12 pm

There will be an explosion.

The valve(s) will be commanded to open. Note that the valves can NOT begin to open until the first explosion happens.

5-6 seconds later, there will be a second explosion.

If the valves have not fully opened by the time of the second explosion, all hell brakes lose.

Clear as mud?
  • 0

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: jeepkahn » Wed Aug 19, 2009 12:45 pm

If the valve opening is commanded by an outside input(an operator) and has to occur within 5 seconds of the seconds of the first bang, thenmy reccomendation would be a pneumaticly actuated ballvalve...

use a pneumatic cylinder with a pressure resorvoir on one side and a piloted qev on the opposing port... Basically using the rezzie side as a large air spring to push the rod and valve lever open, and using the qev side as the closing force on the valve lever... This is exactly the type of process that QEV's were designed for... And the rezzie side will never lose air unless you have a seperate manual vent for it...

Clear as Vodka???
  • 0

My Cannons can be found by clicking the following link.
http://www.spudfiles.com/forums/viewtop ... tml#256896

jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

Unread postAuthor: D_Hall » Wed Aug 19, 2009 1:20 pm

As I said... We have large actuated ball valves just lying around this place. We have a fair amount of experience with them, actually. In our experience, they do not open quickly. We do NOT trust them for this operation.
  • 0

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: D_Hall » Thu Aug 27, 2009 3:37 pm

Well... Ya'll should be happy.

After the Big Meeting today it was decided to build....

[drum roll please]

Two (count 'em, two!), 6" piston valves.
  • 0

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: jeepkahn » Thu Aug 27, 2009 4:50 pm

Can I borrow one for use as the pilot valve on the Punkin'Chunker???



please... :D
  • 0

My Cannons can be found by clicking the following link.
http://www.spudfiles.com/forums/viewtop ... tml#256896

jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

PreviousNext

Return to Non-Spudgun Related Discussion

Who is online

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

Reputation System ©'