Re: [PSUBS-MAILIST] acrylic vs polycarbonate

[Phil Nuytten <pnuytten@compuserve.com>]

Re: "where flowing away from" - all the pressure induced load of, for
example,  a conical section polycarbonate circular port is transferred to
the seat or contact point. If the minor diameter is much,much, less than
the pressure exposedmajor diameter, and the port has sufficient thickness,
then it will function - but is likely to extrude a 'plug' to the cabin side
of the port under sustained loading. If the conical angle is modest - such
as that typically used in acrylics, then you may well find your port on
your lap- followed a nanosecond later by a large amount of the stuff in
which you are immersed! Or, as a famous author observed " Ask not where the
port flows - it flows towards you" ( or similar).
Phil Nuytten




************************************************************************
************************************************************************
************************************************************************
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 311
Weare, NH  03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************