[PSUBS-MAILIST] Pressure Test Chamber

[Alan via Personal_Submersibles]

Thanks Greg & Hugh,
there was a bit of doubt in my mind about it so mentioned my
intended process. I have just googled accumulators in hydraulic systems
& the danger of high pressure air! Yikes just as well I've got you guys
looking out for me.
What about air from the scuba tank pressurising water?
I can get all the air out of the test chamber apart from the air in
the line pressurising it!
Other than that I have done some previous tests with the water blaster
& may have to suffice with it's pressure!
Cheers Alan


Sent from my iPad

> On 21/06/2017, at 3:33 PM, james cottrell via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Alan,
> 
> Pressure testing that high needs to be done with liquid not gas. High pressure air is VERY dangerous. A pressure washer pump using water would be a safer choice.
> 
> Greg
> 
> 
> From: Alan via Personal_Submersibles <personal_submersibles at psubs.org>
> To: personal_submersibles at psubs.org 
> Sent: Tuesday, June 20, 2017 9:01 PM
> Subject: [PSUBS-MAILIST] Pressure Test Chamber
> 
> I am making a plastic container to fill with water & stand inside my
> pressure chamber. There is a gap between the wall of the container
> & the chamber which I intend to fill with oil. There will be about an
> inch of air at the top of the chamber & I'm using a scuba tank to
> pressurise the unit up to 3000psi.
> Will car engine oil do to fill the gap between my plastic container &
> the chamber wall, or do I need to go with a hydraulic fluid.
> Am using the plastic container to keep water from rusting my test
> chamber. (Aussie Steve's idea)
> Cheers Alan
> 
> Sent from my iPad
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