开云体育

On Sunday, February 27, 2022, 10:00:50 PM CST, Dave Seiter <d.seiter@...> wrote:






I got a large, free pressure cooker a few years back and converted it to a vacuum chamber, but haven't used it for a real project yet.? I'm not sure what I used for a gasket.? I remember ordering one from a canning supply place, but it didn't fit correctly.
-Dave






On Sunday, February 27, 2022, 06:00:54 PM PST, mike allen <animal@...> wrote:








??? ??? It works real well . the reason I ran a tube to the
bottom of the pot on the intake was so it was far enough from the
suction side so I wouldn't be pumping oil all over the place . I
used the type with the wing-nuts around the top . Thinking bout
the gaskets , I would think if teh gasket is bad maybe a ring of
silicone might seal it up ? The wine builds up pressure as it
ferments ? I would think there's probably all sorts of safe-guards
around that stuff.







??? ??? animal


On 2/27/2022 5:36 PM, Mark Kimball
wrote:




I like the idea of an old canner-pressure cooker, particularly
since we were "gifted" with a couple of big ones (even though we
already HAD one).? It seems that few use them these days.? At
least for canning/cooking :)? But that means they should be
relatively easy to find at the thrift store or Goodwill.? Seals
for the major brands still are available -- typically the seals on
old pressure cookers are pretty much toast.



My scheme using a shop vac isn't suited for sucking out flammable
stuff, since the shop-vac motor is right there and likely is a
brushed type that generates lots of sparks (ka-BOOM!).? For that
kind of thing I'd look at a so-called "elephant's head", basically
a two-hole stopper arrangement -- one of the holes is to admit
pressurized gas and the other for the liquid being pushed out of
the container.? Clearly, the stopper must make a decent seal to
the container opening.? I made one for moving home-made wine
around, and the pressure source was a bicycle pump.? If THAT
generates sparks you're doing something very wrong....



In the wine industry, the pressurized gas used to operate the
elephant's head typically is nitrogen or carbon dioxide.? Either
one would be pretty good for pushing flammables around as well.
Keeping oxygen away from your wine is desirable, hence the N2 or
CO2.



Mark