MDC Hybrid Adapters provide a transition from one method of sealing to another. The hybrid feature of these adapters is that the geometries at each end of any component are different. This is more than a change in size within a particular sealing method. They are available in most of the common interface transition pairs.
There are two major categories of adapters: one combines pairs of standard vacuum flanges and the other combines standard fittings with flanges. A frequent transition is from a metal seal flange to an O-ring sealed flange or fitting. Specifications are generally limited by the introduction of an O-ring seal. All Hybrid Adapters, except the Del-Seal™ CF to Swagelok® or VCR® adapters, include at least one non-metal seal and are therefore limited to high vacuum applications. Refer to individual component sections for specifications.
Reducers are a change in size within a particular flange sealing method, such as metal-seal to metal-seal. Reducers within a specific sealing method can be found in the fittings portion of each flange section.
Combinations that are not found in the off-the-shelf standard configurations may be discussed with the MDC technical sales engineers.
Fitting to Flange
Chambers with flanges frequently require a special fitting for introduction of additional equipment into the vacuum. Since the two end pieces are not of the identical mating geometry, an adapter containing the two dissimilar connections must be used.
The two most common flanges in vacuum applications are metal seal flanges and ISO elastomer seal flanges. For those geometries, MDC offers a range of adapters to provide connections between most of the standard vacuum fittings and flanges.
The graph at the right pinpoints the catalog location for each pair of fitting and flange. The fittings at the top are combined with the flanges at the bottom.
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