first hybrid
- SpudFarm
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- Location: Norway Trondheim area
now I am finally got my ass up and start build a hybrid!
the chamber is going to be a 8" long 2" steelpipe and a coil for ignition.
and then to the questions: i are using a standard ball valve to fuel it with air and propane and it isn`t rated that high! and if the valve is going up in flames is it just the sealings or does the whole valve blows up?
and 2nd: i am going to use a 1/2" copper barrel on about 4.5 feet is that just silly small or silly big? i dosent wanna have a loong barrel on it bechause its hard to transport.
last: how big mix would you use it on?
thanks for all answers
the chamber is going to be a 8" long 2" steelpipe and a coil for ignition.
and then to the questions: i are using a standard ball valve to fuel it with air and propane and it isn`t rated that high! and if the valve is going up in flames is it just the sealings or does the whole valve blows up?
and 2nd: i am going to use a 1/2" copper barrel on about 4.5 feet is that just silly small or silly big? i dosent wanna have a loong barrel on it bechause its hard to transport.
last: how big mix would you use it on?
thanks for all answers
- Fnord
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Brass or steel ball valves are fine to use for hybrids. They are normally rated for 600 psi (like 40 bar) which is probably about the most you'll generate with "sane" mixes.
I have a similar sized barrel for my hybrid, and while it is extremely small in terms of efficiency, it will work fine for power.
People typically use mixes of around 6x in steel hybrids, but if you don't drill into the chamber you should be ok firing 7 or 8x remotely.
I have a similar sized barrel for my hybrid, and while it is extremely small in terms of efficiency, it will work fine for power.
People typically use mixes of around 6x in steel hybrids, but if you don't drill into the chamber you should be ok firing 7 or 8x remotely.

- bigbob12345
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I would never recomend a handheld hybrid I recomend remote ignition
- SpudFarm
- First Sergeant 3
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sjog WTF are you talking about?
and for bigbob i am going to use it at max 5x so i feel perfectly safe about that, and have you seen the sch 40 steel pipe test?
Edit: here are the "burst test"
http://www.spudfiles.com/forums/viewtop ... 09c7bc7c3b
and for bigbob i am going to use it at max 5x so i feel perfectly safe about that, and have you seen the sch 40 steel pipe test?
Edit: here are the "burst test"
http://www.spudfiles.com/forums/viewtop ... 09c7bc7c3b
Sjog is poking fun at your general ignorance, as well as poor grammar and spelling. A bit of research could have answered all of your questions and more. "I are" isn't proper English by any stretch, and it makes you sound retarded.
Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
- SpudFarm
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yes i am norwegian and i am not shamed of my english! you can try speak norwegian to me and see how many words you can get out of your mouth!
and i ask bechause we haven't the same pipes as in your country we dosent have sch ratings!! and thats the reason that i am going to ask if someone can tell me the wall thickness of a 2" sch 40 steel pipe!
and i ask bechause we haven't the same pipes as in your country we dosent have sch ratings!! and thats the reason that i am going to ask if someone can tell me the wall thickness of a 2" sch 40 steel pipe!
- MrCrowley
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Sorry about the members making fun of your English, I had a feeling it wasn't your first language but you can speak it pretty well. I know I learn German at school but when I went there I hardly spoke a word
Anyway, if Norway is like the rest of Europe the fittings could be in Metric, so you'll need to look for 50mm instead of 2" pipe and the pressure rating will probably be in BAR. I'm not familiar with metal pipe as much as PVC but if it doesn't have the rating on it just ask someone.
It could be on a sticker on the pipe saying DN50(50mm diameter) PN25(rated to 25BAR = 362.5 PSI)
You could try PMing a member called 'Brian The Brain'.
He's Dutch but is very familiar with metal pipe in Europe and speaks perfect English, so you could ask him what to look for.

Anyway, if Norway is like the rest of Europe the fittings could be in Metric, so you'll need to look for 50mm instead of 2" pipe and the pressure rating will probably be in BAR. I'm not familiar with metal pipe as much as PVC but if it doesn't have the rating on it just ask someone.
It could be on a sticker on the pipe saying DN50(50mm diameter) PN25(rated to 25BAR = 362.5 PSI)
You could try PMing a member called 'Brian The Brain'.
He's Dutch but is very familiar with metal pipe in Europe and speaks perfect English, so you could ask him what to look for.
-
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I agree MrC, i think your estimate of 3 or 4 is a tad short of the real number though, i for instance own two myselfMrCrowley wrote:Handheld hyrbids are perfectly safe, there is at least 3 or 4 of them on spudfiles.bigbob12345 wrote:I would never recomend a handheld hybrid I recomend remote ignition

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When you fill your car with refined oil remember that it has been paid for with blood and guts, some from your own countrymen, most not.
When you fill your car with refined oil remember that it has been paid for with blood and guts, some from your own countrymen, most not.
- SpudFarm
- First Sergeant 3
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thanks crowely!
but the pipe i ordered on the web (norwegian site) is what called black steel pipe (direct translation) and i think it is a seam on it is that a big mistake? and is the pipe that other members use seamless?
and one last question: is a black steel pipe rated lower than galvanized?
but the pipe i ordered on the web (norwegian site) is what called black steel pipe (direct translation) and i think it is a seam on it is that a big mistake? and is the pipe that other members use seamless?
and one last question: is a black steel pipe rated lower than galvanized?
- MrCrowley
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I think most metal pipe people on this forum use does have a seam.
When I was in America I only found seamed galv pipe, which just means if you're making a co-axial you may have some problems with the piston and the seam.
I'm not sure on that one, i'm sure someone else is though.
When I was in America I only found seamed galv pipe, which just means if you're making a co-axial you may have some problems with the piston and the seam.
I'm not sure on that one, i'm sure someone else is though.