These vacuum fittings have been created and developed to allow for easy
connection and disconnection from vacuum systems. There are a wide
variety of options available here but the basic concept is to have two
highly machined flange surfaces separated by a rubber o'ring. There
are variations in size, materials, and rubbers/elastomers to fit most any
system from relatively simple systems to those requiring stainless steel
and exotic elastomers.
The finished joint is pretty good for pressures to moderate high vacuum
numbers. if the user is going into the very high vacuum range 10-6
and lower then consideration should be given to possible out gassing
effects of this type of joint and the materials involved. There are
other alternatives potentially better suited for very high / ultra high
vacuum joints that remove some of the concerns which might be present with
these types of fittings. For the majority of the vacuum work out
there, these are an excellent choice, allowing a wide variety of options and
connection preferences. Because they can be quickly assembled and
dis-assembled they are the construction choice for working vacuum
systems. This feature allows for quick change out of filters, traps,
pumps or valves and minimizes potential downtime of the system.
HyVac has a wide variety of these fittings and options to meet most requirements with materials
of construction being stainless steel, aluminum, plastic for the hardware
and Buna-N, flouroelastomers, and silicone for the o'ring type seals
employed in the joint.
Remember what you need
to make a vacuum tight joint is (2) flanges, (1) centering ring and a
clamp. They must be all of the same size.
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Fittings Click Here.