UniBag filter bags are designed for use with bag filter housings. UniBag filter bags are considered to be a slight improvement over Snap-Ring filter bags and as such are also considered an "economy" choice for basic filtering applications to a nominal 65% to 70% level of efficiency. As the filter bag model/design improves, the material it is made from become thicker and the sealing method becomes more efficient. As with the Snap-Ring filter bags, UniBag filter bags are made with a sewn construction, although unlike Snap-Ring filter bags, UniBag filter bags are made from recycled fibers.
What makes the UniBag filter bags an improvement over Snap-Ring style filter bags is the sealing method. UniBag filter bags have a crush seal design per the higher quality Sentinel, DURAGAF, LOFCLEAR, ACCUGAF and PROGAF filter bags. Unlike the snap-ring closure, the Sentinel style crush ring seal has larger contact area against the restrainer (support) basket. Downwards pressure from a separate sealing ring or from the bag filter lid (goose neck style bag filters) creates a bypass free seal and is therefore recommended for all applications, especially when the desired retention is
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