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Re: [PSUBS-MAILIST] Double O-Ring On A Hatch



Hi Les. nice to hear from you. Yeah, I forgot his name, but glad you corrected me. He's a nice guy, with a good, strong sub. Great to hear he'll be there. See ya in a couple days....Frank D.


-----Original Message-----
From: marki katschor <les_marki@riverview.net>
To: personal_submersibles@psubs.org
Sent: Fri, 10 Aug 2007 2:50 pm
Subject: Re: [PSUBS-MAILIST] Double O-Ring On A Hatch

Frank . that is Russ Brown's sub on ebay and he is on the list for attending subs this year.  see ya soon, Les
----- Original Message -----
From: shellydalg@aol.com
To: personal_submersibles@psubs.org
Sent: Thursday, August 09, 2007 10:25 AM
Subject: Re: [PSUBS-MAILIST] Double O-Ring On A Hatch

That is Gary's sub. He lives in Michigan. I saw it last year. The hull is 1/2'' thick while the ends are 3/4'' thick. A nice job, but could use more windows. If someone wants a good ''K'' boat, that one is nice.
I don't see a problem with the double rings. Frank D.


-----Original Message-----
From: Cliff Redus <cliffordredus@sbcglobal.net>
To: personal_submersibles@psubs.org
Sent: Wed, 8 Aug 2007 10:39 pm
Subject: Re: [PSUBS-MAILIST] Double O-Ring On A Hatch

Brent,
 
 
I concur with Vance, Carsten and Peter ..., a single o-ring witht the correct hardness is the way to go.  See technical note http://www.sato riseal.com/Technical/introduction_to_o-rings.htm on how o-ring is design to move within it's machined grove under pressure to seal.  Hatch upper and lower faces need land face to face.    If you are designing a hat ch, pick a standard size so that you do not have to introduce a splice.
 
Cliff
 
Great works are performed not by strength but by perseverance.
Samuel Johnson


----- Original Message ----
From: Brent Hartwig <brenthartwig@hotmail.com>
To: PSUBSorg <personal_submersibles@psubs.org>
Sent: Tuesday, August 7, 2007 11:31:47 PM
Subject: [PSUBS-MAILIST] Double O-Ring On A Hatch

 
I finally found a double o-ring on a sub hatch. The sub on ebay right now called the Great Lake's Submarine mentioned earlier, has one. Here is the picture.
 
http://www.frappr.com/?a=viewphoto&id=4001713&pid=7375620



Regards,
Brent Hartwig


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