Re: [PSUBS-MAILIST] Venting an ambient sub

["Carlos Del Valle" <carlosd072657@gmail.com>]

Thanks Joe, I'm a newby and I appreciate any advice you guys can give.
I'm going to give IVCORP a call and see what type of valve they use in
their sportsub. Just to let you know, I'm a Respiratory Therapist and
was assigned to a hyperbaric unit for two of my 30 yrs in heath care..
If any of you have any questions about diving medicine or pulmonary
physiology related to hyperbaric
environments please let me know, I'd like to help,Thanks again Joe
Best Regards, Carlos
On 8/21/08, Joseph Perkel <joeperkel@hotmail.com> wrote:
> Hi Carlos,
>
> I did a little ambient research several years ago. As I recall, a gate valve
> fouls rather easily and is slow to operate. A ball valve may dump your cabin
> air much too quickly if heavy handed.
>
> I cannot recall, what IVC uses on the Sportsub (automatic pressure regulated
> poppet perhaps) but, whatever it is, I suspect that is what you should
> consider the best candidate.
>
> Good luck
>
> Joe
>
> > Date: Thu, 21 Aug 2008 10:06:06 -0400
> > From: carlosd072657@gmail.com
> > To: personal_submersibles@psubs.org
> > Subject: [PSUBS-MAILIST] Venting an ambient sub
>
> >
> > Hi all,I know most of you are into 1 atm subs,but I need a little help
> with my
> > "want to be sub". It will be similar to ivcorp's solo sub, I calculated my
> > minute volume @ 18 liters/min,(700cc tidal volume X 20 breaths/min).That's
> > how much I will be bleeding into the sub.To vent that amount can I use
> > a simple gate valve to do it?
> > I figure I can start the flow, then adjust the gate valve until the
> > level of water in
> > the sub remains constant.This will ensure that I have a constant exchange
> of
> > air. I will have a separate ballast tank forward to control buoyancy.
> > Trying to build a water/air tight batt. box is another issue.
> > I would greatly appreciate any advice you guys can give,Thanks
> > Carlos
> >
> >
> >
> >
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