Fabric Selection

Because each baghouse has its own set of characteristics and system parameters, it is important to evaluate each of the following variables in order to choose a fabric best suited to the system:

  • Temperature
  • Moisture level
  • Particulate size
  • Gas stream chemistry
  • Air-to-cloth ratio
  • Particulate abrasiveness
  • Mechanical factors, such as cleaning style, installation, etc.

In general, felt filter bags are used in pulse-jet collectors. Woven filter bags are used in reverse air or shaker baghouses.

Specialty fabrics

GE offers a number of specialty fabrics designed to address specific problems. The following are a few of our fabrics that collect particulate with the dustcake and fabric structure.

(See the related information link to BHA-TEX® Membrane for filters that collect particulate on the surface of the filter media and do not require the formation of an initial dustcake.)

Tri-Loft® and Reverse Air Tri-Loft® fiberglass

Tri-Loft and Reverse Air Tri-loft were developed with highly texturized bulky yarns on the filtration surface to add surface area, depth, and felt-like density to provide maximum efficiencies, high airflow capabilities, and excellent durability.

These fabrics feature the Blue Max-CRF/70 chemically resistant finish, providing state-of-the-art fiberglass encapsulation that results in superior resistance to acid attack and alkaline conditions. Tri-Loft is widely used in incinerators, coal- and waste-fired boilers, cement kiln, and carbon black applications.

Dimension™ felts

Specialized manufacturing technologies provide Dimension™ with greater fiber population than traditional fabrics, more surface area, increased strength, and higher filtration efficiencies. Available in aramid or polyester media.

Duo-Density felt

GE offers duo-density felt fabrics for pulse-jet and reverse air dust collectors. These fabrics feature a blend of finer denier fibers on the filtration surface to provide a tighter surface for filtration without increasing differential pressure.

These finer fibers prevent particulate from penetrating the filter media where it may become trapped, providing for greater airflow capabilities and minimal leakage. The surface fibers maximize collection efficiency while allowing the bag to clean down properly and regenerate its permeability.

The heavy-duty scrim of the duo-density fabric also provides the dimensional stability to help maintain proper bag tension and cleaning efficiency in structural reverse air baghouses.

Related Information

For More Information

Call: 800-821-2222
GE
8800 East 63rd ST
Kansas City, MO USA