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We use flanges
made by Schott for many vessels and lab glass apparatus. They are simple,
clean, durable, and quick to open. They permit easy and open access
to vessel contents, and for cleaning.
| Schott
flanges are available in five sizes. They are called-out by
their inside dimensions, and range from 60mm ID to 200mm
ID. The three configurations shown in the photo are standard
off-the-shelf components. Typically, a vessel will utilize
one o-ring flange with either a flat flange or a "domed" or
"lid" blank flange. Many configurations are possible,
including custom machined interfaces. |
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A
stainless steel wraparound toggle clamp holds the flanges
together, with an o-ring between the mating parts. This photo
shows how the shape of the clamp conforms to the form of the
glass flanges. There are a number of o-ring choices, including
viton and teflon encapsulated silicone. |
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An example
of a custom interface between a DN200 Schott flange component
and a base machined from teflon utilizing the Schott clamp.
This approach can be used for a "head" as well. In
addition to teflon, stainless steel is an alternative material
interface, and can be machined to provide drive support and
vessel porting. |
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This
photo shows a custom glass vessel utilizing DN200 flanges.
An all glass "head" is
constructed on a DN200 "lid",
and a DN200 o-ring flange is fused on a 50L round bottom flask.
The unit is easily assembled, and easy to clean.
The
head was a bit difficult to make.....!
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