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| octane89 |
 Posted: 10/23/2007 10:46 AM Post subject: |
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1st Lieutenant
Joined: 11 Sep 2007
Posts: 273
224.26 Spud Bux
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Can someone answer this for me-
Is it possibly to have too much pilot volume? I have a 3" Tee, and the pilot volume is about the size of a 3" cap.
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| Pete Zaria |
| Posted: 10/23/2007 10:53 AM Post subject: |
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Resident Computer Guru
Joined: 31 Mar 2006
Posts: 961
913.28 Spud Bux
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| octane89 wrote: | Can someone answer this for me-
Is it possibly to have too much pilot volume? I have a 3" Tee, and the pilot volume is about the size of a 3" cap. |
Yes, too much pilot volume is a common problem. A larger pilot valve does help, though it's best to try to reduce this volume somehow, either by re-designing the valve or filling the volume with something (foam anyone?).
A picture would be helpful...
Peace,
Pete Zaria.
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| octane89 |
| Posted: 10/23/2007 10:58 AM Post subject: |
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1st Lieutenant
Joined: 11 Sep 2007
Posts: 273
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| I'll have a pic soon and better explanation, but It's a new type of sealing piston Im working on, and where the piston slides back is the pilot volume (obviously), but I don't want to restrict the flow by not having it open enough.
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| octane89 |
| Posted: 10/23/2007 11:23 AM Post subject: |
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1st Lieutenant
Joined: 11 Sep 2007
Posts: 273
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Here's a pic to help get an idea of what Im doing.
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| Here's what it looks like together. The cap and tee will be held together by a 4" coupling. |
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665 Time(s) |
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| Here's what I have so far. I haven't finished everything yet so so try to imagine it a bit. Hence why I did the paint drawing. |
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76 Time(s) |
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| jackssmirkingrevenge |
| Posted: 10/23/2007 11:28 AM Post subject: |
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space monkey
Joined: 15 Mar 2007
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| Quote: | | Yes, too much pilot volume is a common problem. A larger pilot valve does help, though it's best to try to reduce this volume somehow, either by re-designing the valve or filling the volume with something (foam anyone?). |
words of reason, music to my ears 
Octane, the disc that seals with the barrel needs to be the same diameter as your rear disc otherwise it won't be stable and won't work.
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| octane89 |
| Posted: 10/23/2007 11:33 AM Post subject: |
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1st Lieutenant
Joined: 11 Sep 2007
Posts: 273
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| Thats something I figured when I started to make the seals. But I have that part figured I believe. I was just gonna make it the same size, but cut away some of the unnessecary sections to allow it to "flow" back easier.
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| jackssmirkingrevenge |
| Posted: 10/23/2007 11:40 AM Post subject: |
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space monkey
Joined: 15 Mar 2007
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Apologies for the sh!te paintshop, but you mean like in the attachment? that would work well.
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| octane89 |
| Posted: 10/23/2007 11:44 AM Post subject: |
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1st Lieutenant
Joined: 11 Sep 2007
Posts: 273
224.26 Spud Bux
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| Yea, essentially the same unless I cut it differently.
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| wangpushups |
| Posted: 11/24/2007 11:49 AM Post subject: |
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Sergeant Major
Joined: 23 Sep 2007
Posts: 187
42.29 Spud Bux
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| This helped me out a lot, thanks.
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| f.c |
| Posted: 12/11/2007 22:03 PM Post subject: |
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Captain
Joined: 08 Jul 2007
Posts: 342
95.15 Spud Bux
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| the coaxial design doesn't seem to be showing up just my luck considering i needed it.
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| Hawkeye |
| Posted: 12/11/2007 22:29 PM Post subject: |
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Major
Joined: 21 Jan 2007
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997.37 Spud Bux
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| Too bad that's the only coaxial diagram on here.
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| MrCrowley |
| Posted: 12/11/2007 22:39 PM Post subject: |
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Blizzard of Ozz
Joined: 23 Jun 2006
Posts: 6018
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| f.c wrote: | | the coaxial design doesn't seem to be showing up just my luck considering i needed it. |
The co-axial animation is working for me, your talking about the one on the front page right?
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| clide |
| Posted: 12/11/2007 23:36 PM Post subject: |
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Donating Member
Joined: 06 Mar 2005
Posts: 716
2065.66 Spud Bux
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| f.c wrote: | | the coaxial design doesn't seem to be showing up just my luck considering i needed it. |
Not sure why it wouldn't be working, Try this link
Also the theory behind all of them is the same, so using another one would probably still let you learn the concept.
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| f.c |
| Posted: 12/12/2007 1:52 AM Post subject: |
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Captain
Joined: 08 Jul 2007
Posts: 342
95.15 Spud Bux
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| thank you. its great to see a forum where people actually help each other out spudfiles get a 10/10 in my opinion.
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| anthony5640 |
| Posted: 01/12/2008 20:54 PM Post subject: |
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Private
Joined: 24 Jul 2007
Posts: 3
8.79 Spud Bux
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