What is the proper fit of a filter bag onto a cage for a pulse-jet baghouse?
The “nip” or amount of the bag that can be pinched up from the cage, at a ring location, typically should be about ¼”-3/8″ for felts and 3/16″ for woven fiberglass. Excessive pinch will cause premature bag wear and allow for migration of dust through the cross-section of the media. Too tight a pinch will reduce the ability of the dust cake to release from the bag exterior.
