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800 psi cannon help

Posted: Tue Jun 02, 2009 11:12 pm
by Mike_Hunt0420
i've been posting about my 800psi repeater for a couple weeks now, I have the hpa tank and regulator I am having serious problems finding fittings that can take the pressure to construct the gun out of. all I can find is black iron, galvanized, and brass, all rated to 150. anyone that knows wjere to get sufficient fittings in the northern california/redding ca area please throw me a bone. i'm lost on finishing a truely decent cannon...

Posted: Tue Jun 02, 2009 11:34 pm
by Mitchza89
Despite the 150psi rating, they can take a hell of a lot more pressure then that. All it is is a safety precaution so the manufacturers of the fittings don't get sued. With what you mentioned, it should be safe at 400-500psi. Anymore then that and your playing with fire, now matter how good your fittings are.

Sorry I can't be of anymore help mate.

Posted: Tue Jun 02, 2009 11:40 pm
by Technician1002
Mitchza89 wrote:Despite the 150psi rating, they can take a hell of a lot more pressure then that. All it is is a safety precaution so the manufacturers of the fittings don't get sued. With what your using, it should be safe at 400-500psi. Anymore then that and your playing with fire, now matter how good your fittings are.

Sorry I can't be of anymore help mate.
To get stuff actually rated to the higher pressure, visit a hydraulics supplier.
Hydraulic pumps supply fluid to the components in the system. Pressure in the system develops in reaction to the load. Hence, a pump rated for 5,000 psi is capable of maintaining flow against a load of 5,000 psi.
Info clipped from http://en.wikipedia.org/wiki/Hydraulic_machinery

Posted: Tue Jun 02, 2009 11:57 pm
by Mike_Hunt0420
thank you for the help, i'll pick up a few of the afore mentioned fittings and make a coaxial out of them, should be decent. i'll search around for a supplier of higher rated fittings and post my sniper as soon as possible. the coaxial i'm going to build until then should be up in a day or two. thanks for all the help as always, any further input is always welcome.

Posted: Wed Jun 03, 2009 12:15 am
by Moonbogg
Mc Master has fittings that will work. Did you look?

Posted: Wed Jun 03, 2009 11:52 am
by Mike_Hunt0420
I will as soon as I can get to my computer, i've been surfing the net on my phone this whole time and mcmasters won't load on it. once again thanks for the help.