Re: [PSUBS-MAILIST] MBT Vents

[Jon Wallace <jonw@psubs.org>]

Hello James,

One reason I wouldn't have the valve inside the cabin is because you end 
up with two penetrations instead of one.  You also end up with more 
exposure to problems with valve failure (possibly) since the entire 
valve is inside, whereas with the valve on the outside you only have to 
worry about stem failure.  I would bet that the reason the valve is on 
the inside in this particular example, is because they didn't have 
access to the valve spec'd in the plans and this was a workaround.

Jon


James Frankland wrote:
> Hi All,
>
> I was just looking at the K350 submitted by Don Palmer.  I notice that it looks like he has the main vents going in through the tower with the valve on the inside.
>
> This seems like a more sensible way to do it to me, rather than the through hull and valve on the outside.
>
> Anyone have any thoughts on this?
>
> Thanks
> James
>
>   




************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003.  Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.

If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
	removeme-personal_submersibles@psubs.org

Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.

PSUBS.ORG
PO Box 53
Weare, NH  03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************