Search    

Home » Bagfilters » Filtration media » Filter Bags and Cages » Fabric Selection

Since 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.

The following table is a good general reference:

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

Specialty Fabrics

BHA has 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 BHA-TEX® Membrane and PulsePleat® Filter Elements sections for products 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

BHA developed Tri-Loft® and Reverse Air Tri-loft® 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^TM Felts

The next "dimension" of performance fabric filters, exclusively from BHA. New
technologies in manufacturing provide Dimension^TM with greater fiber population than
traditional fabrics, more surface area, increased strength, and higher filtration efficiencies. Available in Nomex® or polyester media.