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Spacers,
gaskets and plugs are used with sealed and demountable liquid
and gas cells. Spacers create the space between the windows
of a cell and enable assembly of cells with accurate pathlengths.
Gaskets cushion the optics and form seals with the metal
and glass components of a cell. For example, we mercury
amalgam a lead gasket to the front plate of all our sealed
liquid cells. In sealed cells, the spacer is typically lead,
but copper is used for smaller pathlengths. Spacers for
demountable cells are usually PTFE. Gaskets are made from
a variety of materials and materials not listed are available
on custom order. Plugs that seal the ports of a liquid cell
are machined from solid PTFE. ICL can make a
custom gasket or spacer for any cell. There is a gasket,
spacer and plug shown in this catalog for virtually any
sealed or demountable cell sold in the last 40 years. If
you are unsure which part goes with your cell, we will find
the right part for you if you will send us a tracing of
the geometry of the part with dimensions marked on the drawing.
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