HyVac
Products, Inc. primary focus is
categorized as high, medium and low vacuum pumps. Our product offering in vacuum pumps is really quite
broad and is somewhat difficult to quickly break down so here goes. We make old style
belt drive pumps that have been in use for years. We also make direct drive pumps that are newer generation vacuum pumps.
The direct drive style is faster for the size and physically smaller than the older style belt drive pumps.
Both styles create vacuum using the same rotary vane principle which
hasn't changed much for a very long time.
Many
of these
pumps are used to achieve vacuum pressures in excess of 29.5" of mercury
vacuum. They are often referred to as oil sealed rotary vane pumps. They use special oil
to lubricate and create the vacuum pressures that the pumps specify out at.
Low
vacuum pumps are generally from atmospheric pressure to about 15"
mercury vacuum. We also
have some pumps that are rated lower in this category. They have
varying principles of operation and varying performance criteria to
achieve the vacuum desired. Some use oil, some do not. Some use water to create a vacuum seal. The
good part is that depending on the application there are a wide variety of
solutions for your needs, some better than others, for the application.
That is why when you call us we generally ask the big question, "What
is the application?" We are not being nosy we just may have a
better cost effective alternative than what you were thinking about.
Medium
vacuum pumps are generally from atmospheric pressure to about 25-28"
mercury vacuum. We also
have some pumps that are rated lower in this category. They have
varying principles of operation and varying performance criteria to
achieve the vacuum desired. Some use oil, some do not. Some
have no moving parts.
High
vacuum pumps are rated from atmospheric pressure to about .0001mm of
mercury vacuum. We also
have some pumps that are rated a little lower in this category. They have
varying principles of operation and varying performance criteria to
achieve the vacuum desired. Most of the pumps in this category use
oil as the vacuum creating mechanism.
"Very
High" vacuum pumps are really a combination of pumps to create vacuum in
excess of 10-4 Torr (.0001mm Hg). These pumps get very, very technical.
They also get pretty expensive. The applications, fittings and the
associated trouble shooting get a little time consuming to get involved in. There
are very many issues that get intermingled including process materials,
chamber design, vacuum source design just to name a couple. At this time, we
are included from a rough vacuum pump standpoint which is often required
to create a base pressure from which the more technical pumps start to do
their work. Included in this category are diffusion and turbo
molecular pumps to name a few. If you have these needs here, we may have part or all of the equation
and often do, but assuredly have the people that can assist you.
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