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| yyttu |
 Posted: 10/05/2006 10:19 AM Post subject: Solenoid valve electronic Vs. pneumatic comparison? |
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Private First Class
Joined: 07 Aug 2006
Posts: 36
123.12 Spud Bux
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I know, pneumatic allows for a much faster air discharge. I was hoping someone could provide some numbers so I can have an idea of exactly what sort of performance to expect. I have a solenoid operated valve, but after seeing my friend's gun in action, I am tempted to replace that valve for a new one (since the valve I have is cracked in one screw mounting post) and modify the valve for pneumatic actuation.
Any numbers on before/after modding muzzle velocity or anything like that would be appreciated.
Thanks. |
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| zeigs spud |
| Posted: 10/05/2006 13:39 PM Post subject: |
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Colonel
Joined: 04 Apr 2006
Posts: 641
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| i don't think you will get much of an answer. i think it depends on the size of he valve,the psi, and the volume of the compression chamber. |
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| COD_FILLETS |
| Posted: 10/05/2006 15:41 PM Post subject: |
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Staff Sergeant
Joined: 16 Sep 2006
Posts: 112
185.63 Spud Bux
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| The pnumatic(ball valve) and electronic (Im guessing sprinkler/inline valve) do the same thing. They both let air out from a pnumatic tank. |
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| Gnobbes |
| Posted: 10/05/2006 15:56 PM Post subject: |
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Joined: 22 Aug 2006
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I don't have any concrete numbers for you, as I don't really get very technical about measuring performance after completing a cannon.
I just start blastin' stuff.
However, I can tell you that there will be a noticable difference if you trade the switch for a pilot valve.
I'd say I saw, roughly, about a 20%-25% increase in distance and damage between my old solenoid activated cannon and my newer pnu with a modded valve. There were other variables, of course, but like I said, I don't get too scientific about it.
Personally, I think it's worth it to mod. |
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| frankrede |
| Posted: 10/05/2006 16:37 PM Post subject: |
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Sangheili
Joined: 20 Jul 2006
Posts: 3004
563.91 Spud Bux
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| COD_FILLETS wrote: | | The pnumatic(ball valve) and electronic (Im guessing sprinkler/inline valve) do the same thing. They both let air out from a pnumatic tank. | Pneumatic? That dosnt mean ball valve. He means a sprinkler valve that has been modded for pneumatic operation.
He knows what they do but he want to know which performs better. |
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| rna_duelers |
| Posted: 10/05/2006 17:28 PM Post subject: |
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Major General
Joined: 26 Sep 2005
Posts: 1641
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| I'd have to see i saw about a 100%increase in distance and also in the noise it made,from a woosh to a crack its a definite modd. |
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| COD_FILLETS |
| Posted: 10/05/2006 19:32 PM Post subject: |
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Staff Sergeant
Joined: 16 Sep 2006
Posts: 112
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| frankrede wrote: | Pneumatic? That dosnt mean ball valve. He means a sprinkler valve that has been modded for pneumatic operation.
He knows what they do but he want to know which performs better. |
When he said "Pnumatic" i assumed the standard ball valve. My fault  |
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| frankrede |
| Posted: 10/05/2006 22:13 PM Post subject: |
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Sangheili
Joined: 20 Jul 2006
Posts: 3004
563.91 Spud Bux
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Its ok.
You are forgiven. |
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| yyttu |
| Posted: 10/05/2006 22:40 PM Post subject: |
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Private First Class
Joined: 07 Aug 2006
Posts: 36
123.12 Spud Bux
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| Okay, thanks for the comments. Just to make it clear I was not talking about ball valves, only modded/unmodded sprinkler valves. I'll keep an eye out for decent valves to mod. |
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| tntlly |
| Posted: 10/06/2006 2:33 AM Post subject: |
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Corporal
Joined: 01 Oct 2006
Posts: 72
125.57 Spud Bux
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| the mod isn't even hard, just drill a hole in the top, but a blow gun in it, and fill the solenoid hole with glue and you also have yourself a cool handle with a trigger |
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| MrCrowley |
| Posted: 10/06/2006 3:03 AM Post subject: |
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Blizzard of Ozz
Joined: 23 Jun 2006
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| he wasnt asking how to mod he was asking whats the performance increase/advantage of modding. |
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| boilingleadbath |
| Posted: 10/06/2006 13:14 PM Post subject: |
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Moderator
Joined: 12 Mar 2005
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I would suggest downloading the GGDT (check the spudwiki) and comparing preformance... if I knew what the vent diameter of the stock solenoid valve.
I think I heard .04" somewhere. Is this credible? |
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| rna_duelers |
| Posted: 10/07/2006 5:09 AM Post subject: |
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Major General
Joined: 26 Sep 2005
Posts: 1641
3118.23 Spud Bux
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| The venting diamter of my valve(pre mod)was about 2mm.I might whip out the old ruler tomorow and measure it. |
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| yyttu |
| Posted: 10/13/2006 0:26 AM Post subject: |
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Private First Class
Joined: 07 Aug 2006
Posts: 36
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I just thought I'd let you all know that I went and bought a new solenoid valve, two barbs, some compressor hose (rated to 233psi), ball valve and hose clamps.
Originally I couldn't operate my gun past about 200 pumps (I think that's around 60psi, calculated from when I borrowed a pressure gague. My pump is really tiny.) however with pneumatic modification I pumped it up to 300 pumps. I bought the new valve because the old one was damaged.
Old firing speed: 170Km/h
New firing speed: 287Km/h
So there you have it. Pretty good, I think. Now all I need is a decent pump. Any suggestions? I'm in Perth, Western Australia. I want something that will last, with a pressure gague preferably rated up to 200psi. |
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| rna_duelers |
| Posted: 10/13/2006 1:43 AM Post subject: |
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Major General
Joined: 26 Sep 2005
Posts: 1641
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| Saw in Big W the other day a 12volt compressor for about $15 at it goes to 250psi i was told about these before but i could never find them before but they are in the car section wiht oils and such.But if this is a standard PVC sprinkler valve i wouldnt take it to 200psi keep it at about 140psi max. |
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