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Brent, You are a classic. Yes
that is the one I was thinking of. Very simple. I might try and use it.
Thanks Hugh From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Brent
Hartwig Hugh,
That's the one Jay worked up. I found the older post. Here is the
link to the drawings. Brent Thanks Guys. Brent,
those are nice drawings. It wasn’t that design I was looking for as your
one has the cylinder mounted on the side and wouldn’t work for me. The
one that I saw was with a Bimba cylinder mounted in the center and was all self
contained. Very simple etc. It might have been a Frank one but it
was about the same time you posted those. The Vent valves on the
Comsub have been removed and ½” diaphragm solenoid valves have been retro-added.
I’m not too keen on them as diaphragms have a habbit of splitting. Only
two of the four work and the MBT’s are 14” diameter cylinders with no access to
the inside. Frank, did you do some sketches of some
valves way back. They were the sort of “Frank-practical-approach”
designs. Chs Hugh From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Brent
Hartwig Hello
Hugh, Vance,
Jay, and Frank all have designs in mind, that I'm aware of. The design
restraints on the shape of the MBT's and the heads where the highest point of
the MBT's is on my sub, required me to work up a custom assembly this last
winter. This basic configuration could also be used in larger flat topped
soft ballast tanks. The main turned parts are UHMW plastic or the like. Since
you won't have corrosion issues with it, it's easy to machine, and less
expensive or heavy as 316 SS. You could even use acrylic or polycarbonate if
you so wished. I've made notes as to up grades I plan to make for my pair
of Mushroom vents, that I've not applied to the CAD models as of yet. A couple
of them are to install the hinge parts on the main assembly that is mounted to
the FRP MBT shell, and change out the SS parts that attach to the plunger and
seating ring to UHMW, including the hinge. Here
was the last plunger and seating ring sealing configuration I had worked up. And
here are the other renderings and drawings regarding my K-250's mushroom vents. Regards BH Hi All, I recall someone having a smart design for a vent
valve operated by a small Air Cylinder. Can anyone remember where the
sketch was. I think it was about a year ago. I’ve tried the Search
although admittedly not persevered too long. Chs Hugh
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