[PSUBS-MAILIST] 12'' Pipe coupling

Thu Mar 19 05:47:20 EDT 2015

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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