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Facet
wafer repacks, used with Facet HP Series single-stage coalescer
housings, are excellent coalescers or strainers for fuel applications
when gross solids (in excess of 0.5 ppm) and heavy water contamination
conditions exist.
Heavy solids or certain types of solids tend to either
blind off the surface of the repack media and/or compress only the
first and second wafers to the point that they will no longer function
as a coalescer. With Facet wafer repacks, only the first two wafers
need to be replaced when required while the third and successive
downstream wafers require fewer changeouts since they generally
remain relatively free of solids.
In constructing wafer repacks Facet controls the media
density by machine packing the excelsior between metal wheel type
grids and hardware cloth, then securely tying each end with heavy
metal wire to prevent deformation during operation.To assure a tight
fit inside the housing and prevent bypass, the outside diameter
of each repack is strategically sized to the inside diameter of
the housing wall.
Facet HP Series single-stage coalescers installed
with Facet excelsior wafer repacks will provide excellent protection
to fueling systems when both gross solids and heavy water contamination
conditions are present.
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