So I’m getting one of the big metal air tanks and was wondering what I’ll need to fill my smaller carbon fiber tank with it ? Make by male fitting for the female ends ?
Tank to tank fill
- Thread starter Pepper
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If your using a 6000# steel tank you will need a regulator to reduce to 4500# and a purge valve to dump pressure between the two tanks after fill.
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G
Guest
Guest
Call ExpertHPA in Huntington Beach. He will have what you need. Ask for Joe the owner. He probably will be the guy that picks up anyway.
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Agree with the bleed valve, but why would he need a regulator? I fill guns and gun tanks to 3000psi from a 4500psi tank without using a regulator, so why would you need one to go from 6000 into 4500? Can't you just open valve slowly and then close when it gets to 4500?
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WHY do you need a large 4500psi steel tank to fill a carbon fiber 4500psi tank in the first place? WHY not just refill that CF 4500psi tank STRAIGHT from your compressor?
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I didn't see he had a compressor in the question. Yes you could go without a regulator and even with an overfill on the 4500# one would most likely be OK as they are tested to at least the 6000# level but why take a chance. I've been in a room when a 3500# burst disc whent through a very small hole, it blow stuff all over the place and several grown men hitting the deck. I don't think I would want to be around when a tank blew at 4500 plus on a burst disk or worst case the tank letting go. That would be a bomb. I do fill guns with a slow fill to 3000-3600 and even then can fill rather quick from a 4000# plus source and they can jump it pressure very quickly. The regulator would give a margin of safety, needed or not needed.
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Don't NEED a regulator but STRONGLY recommend for safety reasons. I've been working with HPAir for many years & have learned it's always best to err on the safety side! A used 6000psi regulator should be fairly easy to find.
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I don’t have a compressor. My refill guy has offered me one of the huge steel tanks that will lessen my refill trips and as it’s many times bigger than my carbon fiber can refill it too . I will call expertHPA on the necessary fitting and protocol
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Here's what I use. Been using this set up for a few years and haven't had any issues. You just have to pay attention the gauge and not be day dreaming. lol
Jking
Jking
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Personally I would trust my HAND turning the valve more then I would a mechanical regulator which could fail.
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Thanks! Yes I will be be very mindful of the carbon fiber tanks same as I am when filling the ag tanks
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If the big tank is 4500psi you wont need any regulator as there is no danger of over filling a SCBA tank because it too is 4500 psi.
Just remember to fill it slow so that it wont lose so much pressure when it cools down
Just remember to fill it slow so that it wont lose so much pressure when it cools down
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