[PSUBS-MAILIST] 12'' Pipe coupling

Thu Mar 19 13:20:23 EDT 2015

I have posted a couple of messages over the last few weeks and it doesn't
seem to go threw. Not sure if this will either. I tried sending Jon an
email at jonw at psubs.org and it came back. Let me know if anyone gets this.

Rick

On Thu, Mar 19, 2015 at 12:38 AM, glen brown via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Thanks James
> You got me thinking ,maybe a sleeve with 4 o rings that can just slide
> over with something that can keep it in position.
>
> Glen
>
> On Thu, Mar 19, 2015 at 11:47 AM, James Frankland via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>> Hi Glen,
>> I think it looks like a good idea.  A bit of extra security on the seal.
>> I cocked up making that seal as per the plans so did mine a different way.
>> However, I was never keen on the original design anyway.  I believe George
>> had at least one battery pod flood at some point.
>>
>> You could even maybe make your own version of that coupling.  A ring of
>> rubber say 2" wide covering the joint with a suitably made stainless ring
>> cramped over it.  Would be easy to make.  You could even maybe use a piece
>> of rubber cut from an old inner tube and stretched over.  Not very
>> sophisticated but would probably work and cheaper?  Also there wouldn't be
>> anywhere for water to collect and there would be no metal contact to rub
>> your paint off.  Just a thought.
>>
>> Kind Regards
>> James
>>
>>
>>
>> On 19 March 2015 at 09:30, Alan James via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>> That's OK, sorry I wasn't much help.
>>> I have book marked this site
>>>
>>> http://prevco.com/products/subsea-housings/seal-configuration/single-face-seal
>>> They are experts in sealing underwater housings. There are several
>>> examples
>>> of sealing methods, & their pros & cons are discussed.
>>> Alan
>>>
>>>   ------------------------------
>>>  *From:* glen brown via Personal_Submersibles <
>>> personal_submersibles at psubs.org>
>>> *To:* Personal Submersibles General Discussion <
>>> personal_submersibles at psubs.org>
>>> *Sent:* Thursday, March 19, 2015 9:04 PM
>>>
>>> *Subject:* Re: [PSUBS-MAILIST] 12'' Pipe coupling
>>>
>>> thanks for the input Alan
>>>
>>>
>>>
>>> On Wed, Mar 18, 2015 at 9:52 PM, glen brown <gbrown091 at gmail.com> wrote:
>>>
>>> I think they would work better externally Alan the wet switches are a
>>> must ,but I must admit the pod seal arrangement gives me sleepless
>>> nights.I have also just cut my CT off and re mated the hatch and re cut
>>> the o ring groove to hold a 9 mm od o ring. Maybe I am getting a bit
>>> paranoid. As to the cricket looking good, do the Americans actually play
>>> unprotected sport?
>>>
>>> On Wed, Mar 18, 2015 at 9:24 PM, Alan James via Personal_Submersibles <
>>> personal_submersibles at psubs.org> wrote:
>>>
>>> Another thought Glen,
>>> those seals for pipes would be designed for internal pressure.
>>> Are they OK for external also?
>>> Alan
>>>
>>>
>>>   ------------------------------
>>>  *From:* glen brown via Personal_Submersibles <
>>> personal_submersibles at psubs.org>
>>> *To:* Personal Submersibles General Discussion <
>>> personal_submersibles at psubs.org>
>>> *Sent:* Thursday, March 19, 2015 7:40 AM
>>> *Subject:* Re: [PSUBS-MAILIST] 12'' Pipe coupling
>>>
>>> Alan
>>> Its 316 ss ,I was thinking of assembling with grease there is more than
>>> enough space to fit it ,you get some of the fittings with triple
>>> seals up to 2000 psi
>>> Glen.
>>>
>>>
>>> On Wed, Mar 18, 2015 at 8:13 PM, Alan James via Personal_Submersibles <
>>> personal_submersibles at psubs.org> wrote:
>>>
>>>
>>>
>>> Glen,
>>> as long as salt water doesn't sit in it after a dive
>>> & cause corrosion. ( I suspect it must) Or clamping it on doesn't
>>> wear in to your paint work & expose the metal
>>> also to corrosion.
>>> Alan
>>>
>>>
>>>   ------------------------------
>>>  *From:* glen brown via Personal_Submersibles <
>>> personal_submersibles at psubs.org>
>>> *To:* Personal Submersibles General Discussion <
>>> personal_submersibles at psubs.org>
>>> *Sent:* Thursday, March 19, 2015 6:58 AM
>>> *Subject:* [PSUBS-MAILIST] 12'' Pipe coupling
>>>
>>> I am planing on as an "extra safety" for my K350 B pods end caps
>>> ,covering the join between the end caps and the pod with a hp pipe join
>>> coupling.
>>>
>>> Any comments most welcome.
>>>  Glen
>>>
>>>
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