[PSUBS-MAILIST] G.L. summary Pressure Hull

[Alan]

Carsten,
Your friends in Hamburg wouldn't be happy with the get wet solution.
As an after thought on my ambient, I put a AOP valve above my
head & through the dome. It works the opposite way round, so that if
I dive too quick & the hull doesn't equalise, I get water on my head.
The hull is equalised with divers regulators so better to get wet
than the regulator diaphragm rupturing.  The manual operation of the
AOP let's me flood up to the top of the dome in an emergency exit,
as there may be too much force on the latches to open them with
air in the dome. 
Alan


Sent from my iPad

On 13/12/2013, at 7:33 AM, " " <MerlinSub at t-online.de> wrote:

> 
> If you have an over-pressure valve handle obstructing the Alan
> movement of the hatch latch handle, it would need to be
> spring loaded or you would create the problem of the possibility
> of diving with the valve open later on.
> 
> 
> Yes, and if you dive with a open valve you get wet
> learn to close it and learn to read you "pre-dive" checklist. 
> 
> :-O   
> 
> SL not required an blocking mechanism on the hatch - just an 
> simple spring loaded automatic overpressure valve. 
> Because of the automatic there is no need to block the hatch. 
> The air sound of the working valve is a clear signal not to open the hatch.
> The function of the valve should be anyway mention in the written manual. 
> 
> very best regards
> 
> Carsten
> _______________________________________________
> Personal_Submersibles mailing list
> Personal_Submersibles at psubs.org
> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20131213/714d324e/attachment.html>