[PSUBS-MAILIST] Snorkel

Wed Jan 14 14:36:36 EST 2015

Brian,I seem to remember you can manually operate Emile'soverpressure valve; and it is operating procedure to pressit to relieve the remaining pressure before opening the hatch.If you are looking for an off the shelf solution, make sureyou can do that.Alan
      From: Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Thursday, January 15, 2015 6:11 AM
 Subject: Re: [PSUBS-MAILIST] Snorkel

I don't see where they list the pressure limit on it. Brian

--- personal_submersibles at psubs.org wrote:

From: James Frankland via Personal_Submersibles <personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Snorkel
Date: Wed, 14 Jan 2015 16:31:56 +0000

what about something like this?  I only just googled it so would need research.  Don't quote me on it! http://www.haitima.com.tw/valve/check-valve/check-valve-2026.htm
On 14 January 2015 at 15:55, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Is there an off the shelf over pressure valve that I can get? Brian

--- personal_submersibles at psubs.org wrote:

From: James Frankland via Personal_Submersibles <personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Snorkel
Date: Wed, 14 Jan 2015 13:58:24 +0000

Yes, my OP valve does not have enough holes.  I have a job over the winter to add more or drill existing holes bigger.  
On 14 January 2015 at 13:04, Emile van Essen via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Mark, All.

Mind the area is big enough. The valve in the attachment is designed for a
3000 Kg sub. But even then it is to small if you surface too quick in case
of massive overpressure.
Cracking pressure: 25-75 mBar.

Best regards, Emile

-----Oorspronkelijk bericht-----
Van: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org]
Namens Mark via Personal_Submersibles
Verzonden: dinsdag 13 januari 2015 13:12
Aan: Personal Submersibles General Discussion
Onderwerp: Re: [PSUBS-MAILIST] Snorkel

Since we are discussing over-pressure valves, can you recommend a make and
model, or describe its specifications?

Regards,

Mark...

Sent from iPhone.

> On Jan 12, 2015, at 7:06 PM, Pete Niedermayr via Personal_Submersibles
<personal_submersibles at psubs.org> wrote:
>
> Scott, I see you have an overpressure valve in place of the snorkel .
Whats that on the other side ?
>
> Pete ?
> --------------------------------------------
> On Mon, 1/12/15, via Personal_Submersibles
<personal_submersibles at psubs.org> wrote:
>
> Subject: Re: [PSUBS-MAILIST] Snorkel
> To: "Personal Submersibles General Discussion"
<personal_submersibles at psubs.org>
> Date: Monday, January 12, 2015, 5:09 PM
>
> I
> would recommend a cabin overpressure valve instead. It is a
> mushroom valve. You can see pics on my sub page. Alec
> did the same thing.
>
> Thanks,
> Scott Waters
>
>
> -------- Original
> Message --------
> Subject: [PSUBS-MAILIST] Snorkel
> From: Pete Niedermayr via Personal_Submersibles
> <personal_submersibles at psubs.org>
> Date: Mon, January 12, 2015 3:58 pm
> To: personal_submersibles at psubs.org
>
> I have a set of K 350 plans that I'm using as a
> reference for my own design. I'm using the conning tower
> plans pretty much as per. The question I do have is. Snorkel
> or no snorkel ? On the one hand I can see how it would be
> useful have. On the other hand no other design seems to have
> one. What are your opinions? Snorkel or no snorkel?
>
> Pete
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