Building or modifying BB, Airsoft, and Pellet type of guns. Show off your custom designs, find tips and other discussion. Target practice only!
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Is it safe to put like 1500/2000psi inside a standart 3/4 steel galvanized pipe you find in hardware store, if this works it would be more convenient than buying paintball tank bottle. The only downside is to find some 3/4 to 1/8 adaptor to screw the fill valve in.
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1500 psi is above the rated pressure for the pipe, which is closer to 750psi. Although it *probably* won't unexpectedly burst at that pressure, but you've blown away any safety margin you have, so any minor damage could be catastrophic. But rather than the pipe itself, I'd be very worried about threaded fittings, which are generally rated at about half of that 750psi. Good chance of endcaps going ballistc.
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At pressures that high, I would definitely buy something rated for it. I'd be too paranoid to enjoy using the thing. Aren't those galvanized steel caps casted? I don't like the idea of casted, crappy threads. If I was designing a hand-held device for 1500psi I'd actually design it for like 10,000psi and then test it at like 3000psi and still be too paranoid to enjoy using it. Then again, I'm more of a traditional spud-gun kind of guy, so after around 2-300psi I tap out anyway.