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Old 08-07-2007, 09:49 PM   #1 (permalink)
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High Pressure PVC

What type of PVC do i need for a LAW type application? (dump chamber to be specific) and how would i go about tapping it for macro fittings?

And what would i need for a ball pin valve, to dump it all instantly?
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Old 08-07-2007, 11:10 PM   #2 (permalink)
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HP PVC does not exit by it's very nature the material is LP only.
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Old 08-07-2007, 11:11 PM   #3 (permalink)
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PVC is not regarded as a reasonably safe material to construct the pressure chambers of law rockets and potato guns.
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Old 08-07-2007, 11:18 PM   #4 (permalink)
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I use Schedule 40 white PVC for all my launchers....some may not deem it safe, but it's rated to 150 PSI & I never go above 100 PSI for my applications. I've never had a problem. You will have to MAKE SURE you primer & cement it right though.
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Old 08-08-2007, 01:07 PM   #5 (permalink)
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If you are going to use unregulated Co2, use galvanized steel pipe, if you are going to regulated the pressure to 100 psi or less SCH 40 or greater PVC pipe will work (don't use threaded fittings, primer and cement everything together).
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Old 08-08-2007, 01:31 PM   #6 (permalink)
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You'd better make sure you have a damn good regulator with an overpressure relief valve if you're going to use PVC.
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Old 08-08-2007, 05:34 PM   #7 (permalink)
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Oh....I forgot about Co2.....

No, no matter how good the reg, I wouldn't use PVC for a Co2 powered launcher. I just put a valve stem on all mine & use an air compressor....you only get one practical shot per game, but I carry a small emergency use compressor in my car to fill it between rounds.
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Old 08-08-2007, 05:47 PM   #8 (permalink)
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You can safely use PVC for your barrel but I use steel fittings and iron pipe for anything upstream of the release valve. For our tanks main guns aluminum piping is used with steel fittings.
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Old 08-08-2007, 11:14 PM   #9 (permalink)
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I still need to add a fill nipple (for air compressor, ~80psi) a gauge and relief valve.
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Early 2007 --> MCB Declares itself as a "Cartel" as members manage to acquire HALF of ALL 2005 Grey Ghosts...
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Old 08-08-2007, 11:21 PM   #10 (permalink)
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What type of valve is that? I can't tell...
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