Re: [PSUBS-MAILIST] Acrylic Dome

[MerlinSub@t-online.de (Carsten Standfuß)]

Jason Ness wrote: 

> I actually already found and priced a 24 inch 
> and 30 inch domes in 1 inch and .75 inch thicknesses, 
> does ABS give a depth
> rating for these sizes?  

> Thanks
> Jason

Deep for the 24 inch (610 m Da, 521 mm Di) dome with 1,75 inch 
ticknesses (44,45 mm) and 180 degree opening 
is 100 bar (equal to 1000 m / 3280 foot)at 10 degree temp 
and 65 bar (650 m / 2100 foot)at 24 degree.
 
Deep for the 30 inch ( 762 mm Da, 673 mm Di) dome with 1,75 inch
ticknesses (44,45 mm) and 180 degree opening
is 70 bar (equal to 700 m / 2300 foot) at 10 degree temp. 
and 50 bar (equal to 500 m / 1640 foot) at 24 degree. 

I use "Germanischer Lloyds" 
Rules for Underwater Technology, Version 1988, 
Chapter Two - Submersibles, 
Part - Acrylic windows, Tabelle 3 

Tickness means on the smallest points.. 
Window design on the flange is also important. 

Everything - as usual - without any guarantee.. 

How much I have to spent for the 24 / 30 inch dome ? 

Regards Carsten - I was the last four days (holiday) 
on the yard - things get bigger and bigger...