RE: [PSUBS-MAILIST] Store Front and Product Survey

["Sean T. Stevenson" <cast55@telus.net>]

I don't have the book handy to check, but isn't that covered in ASME PVHO-1?

-Sean


Quoting irox <irox@ix.netcom.com>:

> 
> Hi Jon,
> 
> yes, I think we are talking about the same thing, the metal the
> acrylic is mounted in.  I am using the Stachiw book, but it has
> gaps in about the viewport housings/thru-hull mounts.  Things like
> "K is selected on the basis of structural analysis" (where K is
> some value I want to know), but no other information obtaining
> or estimating K.
> 
> I'm currently researching spherical sector viewports with a
> square edge.  The lip (side wall) of the viewport housing/thru-hull
> will take part of the pressure of the viewport, as well as the
> flat, contact surface.  (For flat viewports, the flat contact
> surface takes all the pressure and not the lip, which is
> just used to keep the viewport in place and for attaching the
> retaining ring).  I cannot find information in the Stachiw
> book about how thick the lip needs to be.
> 
> I plan to over build, but I'd like to know by how much I'm
> over building.
> 
> Cheers,
>   Ian.





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