[PSUBS-MAILIST] Snorkel

Wed Jan 14 12:33:38 EST 2015

Under Mechanical Properties. "Tensil strenght yeild". 
Thanks,
Scott Waters

Sent from my U.S. Cellular® Smartphone

-------- Original message --------
From: Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> 
Date:01/14/2015  11:11 AM  (GMT-06:00) 
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
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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