Pleated Filter Bags Last Over 3 Years! Donaldson's range of pleated baghouse filters Donaldson Company recommended that the facility replace 25 standard felt bags and cages near the inlet with pleated filters made of sturdy spunbond polyester. The 80-inch pleated filter bag contains 2.5 times more media area than the 120-inch standard filter bag. The shorter length of the pleated means that the filter bag is not directly exposed to the abrasive dust at the inlet, and it doesn’t extend into the dust laden drop out zone of the collector. As an added bonus, the short length and cage-free design of the pleated filter bags equate to quick and easy filter installation. The solution worked. Inlet dust does not abrade the shorter, pleated filter bags and the shop’s uptime improved dramatically. T

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