Filter element for pulse cleaning and methods

Abstract

A filter element includes a media pack of Z-media having first and second opposite flow faces and a side wall extending between the first and second flow face. A gasket is secured to the side wall. The gasket has a sealing portion and an attachment portion. The sealing portion has a flat surface at least one inch long and is located between being planar with and 0.5 inches recessed from the first flow face, inclusive. The filter element can be used in a dust collector.

1 . (canceled) 
     
     
         2 . A filter element arrangement for use in a dust collector having a tube sheet for mounting the filter element arrangement; the filter element arrangement comprising:
 (a) a media pack having first and second opposite axial ends and a side extending between the first and second axial ends;
 (i) the media pack including media having first and second opposite flow faces with a plurality of flutes, each of the flutes having an upstream portion adjacent to the first flow face and a downstream portion adjacent to second flow face, selected ones of the flutes being open at the upstream portion and closed at the downstream portion, while selected ones of the flutes are closed at the upstream portion and open at the downstream portion; 
 (ii) the media pack being non-cylindrical; 
   (b) a gasket adjacent to the side and having at least one sealing portion;
 (i) the sealing portion being radially spaced from the media pack to define an undercut between the sealing portion and the media pack; and 
   (c) a projection extending axially from the first flow face.   
     
     
         3 . The filter element arrangement according to  claim 2  wherein the gasket is secured to the side of the media pack by adhesive. 
     
     
         4 . The filter element arrangement according to  claim 2  wherein the gasket is planar with the first flow face. 
     
     
         5 . The filter element arrangement according to  claim 2  wherein the gasket is recessed from the first flow face. 
     
     
         6 . The filter element arrangement according to  claim 5  wherein the gasket is recessed no more than 0.5 inches from the first flow face. 
     
     
         7 . The filter element arrangement according to  claim 2  wherein the sealing portion includes a first angled surface and a second angled surface. 
     
     
         8 . The filter element arrangement according to  claim 7  wherein the first angled surface and second angled surface slant toward each other to meet at an apex. 
     
     
         9 . The filter element arrangement according to  claim 2  wherein the media pack is oval shaped. 
     
     
         10 . The filter element arrangement according to  claim 2  wherein the media pack has a rectangular section. 
     
     
         11 . The filter element arrangement according to  claim 2  wherein the media pack is rectangular with rounded corners. 
     
     
         12 . The filter element arrangement according to  claim 2  wherein the media pack has a pair of straight parallel sides. 
     
     
         13 . The filter element arrangement according to  claim 2  wherein the projection is a handle having an open aperture.