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RE: [PSUBS-MAILIST] 40 degree inclusive angle Vee clamps for Viewports

Brent,

If you can exclude the oxygen completely to should stop the corrosion.  This is where bedding compounds come into play.

R/Jay

 

Respectfully,

Jay K. Jeffries

Andros Is., Bahamas

 

As scarce as the truth is, the supply has always been in excess of the demand.

    -Josh Billings

 

 

 

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Brent Hartwig
Sent: Sunday, March 01, 2009 3:31 PM
To: PSUBSorg
Subject: [PSUBS-MAILIST] 40 degree inclusive angle Vee clamps for Viewports

 



Very interesting Hugh,

 

   I've never really liked to have to drill bolt holes in the viewport seating rings. This gives me all sorts of ideas for large and small viewports. The one thing that comes to mind with these SS Vee clamps and the SS flanges they tighten down on, is that it creates a low oxygen mating surface that corrodes faster, like Jay mentioned a short time ago.  There doing it with the Deepworkers and on the Triton 1000s, so perhaps it's not enough of a problem or they are adding a coating of some sort.  

Regards,
Szybowski



From: hc.fulton@gmail.com
To: personal_submersibles@psubs.org
Subject: RE: [PSUBS-MAILIST] STANAG NATO standard flange
Date: Sun, 1 Mar 2009 19:29:33 +1300

That system of 40 degree inclusive angle Vee clamps are used on the Perry subs for large Viewports.

Try this lady from Teconnex as they make those clamps.  England. Anyone else have a source?

Ann.Nutter@teconnex.com

Hugh

 

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Brent Hartwig
Sent: 01 March 2009 12:06
To: PSUBSorg
Subject: RE: [PSUBS-MAILIST] STANAG NATO standard flange

 



Jay,   I had been thinking about how the battery pod caps on the Triton 1000 were being attached, and figured it would be a lot like the beveled clamping means your talking about.  But using a small hinge like is used on these tri clover clamps we use at the winery to attach and seal hoses to tanks and what not.

 

 

It's hard to make out the hinge on the Triton pods, but you can see one on the top of the starboard pod in this rendering of the sub if you look closely and the tightening bolt on the bottom.

 

 

 

 

 

 

High pressure tri clover clamps.

 

 

 


Regards,
Szybowski


From: bottomgun@mindspring.com
To: personal_submersibles@psubs.org
Subject: RE: [PSUBS-MAILIST] STANAG NATO standard flange
Date: Sat, 28 Feb 2009 16:58:20 -0500

Brent,

Did not look closely at the unit that was on our pier a short time ago but from inspection of the images, it looks like the mating unit is one or the other but not both.  The two-part clamping ring interfaces with beveled surfaces so that when the tighter it is drawn together, the more pressure is put on the flat mating surfaces.

R/Jay

 

Respectfully,

Jay K. Jeffries

Andros Is., Bahamas

 

As scarce as the truth is, the supply has always been in excess of the demand.

    -Josh Billings

 

 

 

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Brent Hartwig
Sent: Saturday, February 28, 2009 4:51 PM
To: PSUBSorg
Subject: RE: [PSUBS-MAILIST] STANAG NATO standard flange

 



Jay,

 

So does that mean they can be locked by both a rotating ring type, as well as a two-part coupling flange, as it appears this DART unit can?     Are all the outer mating parts of the two-part coupling flange beveled so they increase the pressure on the seal further as the two clam shells are brought closer together?

Regards,
Szybowski