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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 __________ Information from ESET NOD32 Antivirus, version of virus signature database 4316 (20090807) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com |