That drawing is exactly what I wanted to see, thanks mate. MSubs now has some really nice products available. Here is one of there soft ballast tank valves. http://msubs.com/ventvalves.htm If I understand you correctly these overpressure valves are for venting extra pressure out of the interior of a sub, correct? Regards, Szybowski From: emile@airesearch.nl To: personal_submersibles@psubs.org Subject: RE: [PSUBS-MAILIST] Emile's Overpressure Valve Date: Sun, 14 Dec 2008 13:05:09 +0100 Here I a drawing for you. Same type works fine on Peppers but this one is bigger due to hull volume(about 2 cubic meters)
I was also thinking about to make a dome hold-down spring loaded so it can act like a large overpressure valve. Is this done before and with what results.
Overpressure valve is a useful thing but on the other hand a extra hole in your sub..
Emile
Van: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] Namens Brent Hartwig
Emile your SS overpressure valve you have a picture of on your site is very interesting. Do you have any more pictures of it when taken apart? I would like to see the seal on it if you don't mind. It looks like a larger metal version of the valve I found on my friends inflatable pontoon boat. I was thinking of an idea for making a piston vent valve for my MBT's a couple of days ago and when I got to my friends place that same day I found this valve that worked much like I was thinking, except the valve would seal in reverse of what it does, just like Vance's mushroom valves. Here are some pictures of that valve on the pontoon boat.
From: emile@airesearch.nl Hi,
The plan of my earlier mentioned project “Drebbel” chanced a little. The owner of the divebase at lake Hemmoor wanted to have a sub. Specs are pretty close to my earlier plans so Carsten and I made a agreement with him. We design and produce parts and the sub will be sold as a building kit. http://www.airesearch.nl/index_bestanden/Page424.htm click on “kreidesseesub” I hope to inspire people with the picture log! We hope to launch in summer 2009.
Best regards, Emile van Essen
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