[PSUBS-MAILIST] acrylic cylinder

["Greg" <greg@precisionplastics.com>]

Jon,

Do you still have that acrylic cylinder? 

Greg





-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Jon Wallace
Sent: Thursday, April 19, 2012 2:59 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Fill Rate & Blow Rate


I don't think blowing out the soft tanks is an issue.  You'd have to 
dump a large volume of air representing a large percentage of the 
ballast tank volume in an extremely short period of time, OR have a very 
small opening that restricted the outflow of water from the ballast tank 
to the point of creating enough pressure inside the ballast tank to make 
it fail.

If you have a failure in the cabin then certainly you could have a bad 
day depending upon how much pressure built up.

Jon


On 4/19/2012 2:05 PM, Alex wrote:
> If you did have a ball valve or even a normal valve and you opened it
suddenly,
> could you over pressurize your soft tanks and blow them out?
>
> Now that got me thinking. If you had a valve or pipe failure and the 3000
PSI
> tank air went inside the psub, could the pressure inside blow out the
hatch or
> dome once you got to the surface, or worse, before you got to the surface
and
> cause injury and flooding?
>
> Alex
>




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