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Snapband Cuff with double beaded gasket to fit plasma cut, punch
cut, laser cut, extruded lip, and some collared tubesheets. The
snap- band style was developed to improve sealing efficiency.
(#1) Flange Top bags have a donut-shaped piece of fabric
which is sewn to the top of the filter bag and forms a seal when
compressed between the tubesheet and the cage top.
(#2) Ring Top bags have rings sewn in the flange.
(#3) Sleeve Top is a separate piece of fabric sewn onto the
bag body so that it extends beyond the bag body. These are used
in lieu of a raw edge to prevent puckering when folding the bag
into the cage.
(#4) Hem Top woven glass bags are folded back and sewn to
avoid unraveling.
(#5) Raw Edge felt bags have an unhemmed open end.
(#6) Disc Bottom bags have a round or oval enclosure attached
to the bag body, using an overlock stitch on felts and lock stitch
on wovens. Two-ply discs are traditionally sewn to woven glass bags.
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