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Anybody Use High Pressure hose in a cannon

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Anybody Use High Pressure hose in a cannon

Unread postAuthor: anhydrite » Sun Feb 25, 2007 8:24 pm

Im thinking of using pressure washer hose as a chamber for a small cannon im using.

I just dont know anything about them. I want to attach a regulator to the end to fill it from a co2 tank and connect the other end to a valve.

How do I attach fittings to the end.
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Unread postAuthor: c19o » Sun Feb 25, 2007 8:27 pm

I'd Use a steel chamber in a high pressure cannon.
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Unread postAuthor: chaos » Sun Feb 25, 2007 8:43 pm

Use steel mate or just google it to see if it possible
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Unread postAuthor: anhydrite » Sun Feb 25, 2007 11:54 pm

I need a 1" x 10" chamber that can hold up to 300psi.

I had planned on using galvonized steel pipe but thought the high pressure hose would be more compact.

The cannon im building is a replica HK69 that shoots nerf vortex footballs
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Unread postAuthor: shud_b_rite » Mon Feb 26, 2007 12:02 am

For my mini I use about a meter length of a blue air extension hose. It is rated to 60bar, and if you have your hose clamps done nice and tight then it is virtually indestructible.
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Airbeds... so many different uses
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Unread postAuthor: noname » Mon Feb 26, 2007 12:02 am

A chamber that small has no hope at all to be able to shoot a nerf football over 50 feet, just so you know. Well, on second thought, the high pressure might be able to make up for it somewhat...
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Unread postAuthor: shud_b_rite » Mon Feb 26, 2007 12:11 am

it works damn good if you have the right barrel for the ammo. Even at 60psi I cant even see the bb's leave the barrel, but they sure did. The hose I use has 1cm inner diameter and it is very easy to work with.
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Unread postAuthor: noname » Mon Feb 26, 2007 12:27 am

Well, you're shooting BBs (.177"), and he's shooting nerf footballs (over 2"). Hose would be fine for small projectiles, but big ammo? I dunno...
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Unread postAuthor: anhydrite » Mon Feb 26, 2007 12:36 am

Well GGDT says if i have 17ci chamber then I need 250psi to get the nerf up to 230fps out of a 14" long 2" barrell

A length of 1" pipe may be easier to aquire. I just thought the hose could fit in the gun better without having to use fittings and 90 deg elbows.
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Last edited by anhydrite on Mon Feb 26, 2007 12:39 am, edited 1 time in total.

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Unread postAuthor: shud_b_rite » Mon Feb 26, 2007 12:38 am

mate your a genius, u just gave me an idea. If you had maybe 10 80cm lengths of this hose and attached them in parallel (no this is not electronics class) then would have yourself a very high pressure rated chamber with reasonable flow. On second thoughts this could not actually work but hey.
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Unread postAuthor: anhydrite » Mon Feb 26, 2007 12:44 am

I was thinking a 3/4 QEV hooked directly to 3/4 pressure washer hose. Long enough to equal 17-20ci. The other end could be the female Quick disconnect end I could plug my airsource into
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