[PSUBS-MAILIST] k-250 MBT venting valve.

[Philippe Robert via Personal_Submersibles]

Nice !

I think to use this penetrator design for all valve. I bet is more suitable
for me to build a K-350, I don't want to have VBT, air pressure, battery
and valve inside the sub. So all valve can be install on the conning tower
? I wan't to use diving gauge deep and pressure outside the sub close to a
conning tower window.

Philippe Robert

2017-01-27 22:38 GMT-05:00 Alec Smyth via Personal_Submersibles <
personal_submersibles at psubs.org>:

> Hi Philippe,
>
> I used to own a K-250 and must admit the original MBT valve setup was not
> at all good. The valves were attached to the CT with screws that went right
> through the CT wall and were sealed with nothing but silicone, and as a
> result small drips were routine. I came up with my own setup using a valve
> stem extender that sealed with O rings, but later saw how Kittredge had
> done it in the K-350 valves and that was better still. On my new sub, I've
> gone with the K-350 method. The valves on the K-350 are Lance model 22-061,
> which are still made, and the attached file shows the through-hull. I used
> valves with the same exact body but increased the bore for faster diving.
>
> Best,
>
> Alec
>
> On Fri, Jan 27, 2017 at 7:21 PM, Philippe Robert via Personal_Submersibles
> <personal_submersibles at psubs.org> wrote:
>
>> Hi all,
>>
>> I have a question for the k-250 MBT venting valve. I read the old plan of
>> the k-250 and I don't find anyting on the net for the MBT valve. My
>> question is: did you know replacement valve model ? So the valve shaft is
>> penetrating in the conning tower for actuation ?
>>
>> tanks
>>
>> Philippe Robert
>>
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>>
>
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