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A Wide variety of filter bags are manufactured to meet specific application needs

Snapband Cuff

With double beaded gaskets to fit plasma cut, punch cut, laser cut, extruded lip and some collared tubesheets. The snap-band style was developed to improve sealing efficiency

Fabric Selection

Since each baghouse has its own set of characteristics, 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 styles, installation, etc

Flange Top

The bags have a donut-shaped piece of fabric which is sewn to the top of the filter bag and forms a seal when compressed between the tubesheet and the cage top.

Ring Top

Bags have rings sewn in the flange.

Sleeve Top

Has a separate piece of fabric sewn onto the bag body so that it extends beyond the bag body. These are used in lieu of a raw edge to prevent puckering when folding the bag into the cage

Hem Top

The woven glass bags are folded back and sewn to avoid unraveling.

Raw Edge

Felt bags have an unhemmed open end.

Disc Bottom

The felt bags have a round or oval enclosure attached to the bag body, using an overlock stitch on felts and lock stitch on wovens. Two-ply discs are traditionally sewn to woven glass bags.

Tuffskirt

Is a separate piece of fabric sewn around the bag body with a portion of the fabric extending below the disc to help protect it from wear and inlet abrasion

Wearstrip

A separate piece of fabric is sewn around the bag body. This fabric piece helps prevent bag-to-bag and bag-to-cage abrasion.


Polypropylene		Polyester	Acrylic	Fiberglass	Aramid (Nomex®)	Ryton® (Procon®)	P84	Teflon®
Max. Continuous Operating Temperature	170° F (77° C)	275° F (135° C)	265° F (130° C)	500° F (260° C)	400° F (204° C)	375° F (190° C)	500° F (260° C)	500° F (260° C)
Abrasion	Excellent	Excellent	Good	Fair	Excellent	Good	Fair	Good
Energy Absorbsion	Good	Excellent	Good	Fair	Good	Good	Good	Good
Filtration Properties	Good	Excellent	Good	Fair	Excellent	Good	Excellent	Fair
Moist Heat	Excellent	Poor	Excellent	Excellent	Good	Good	Good	Excellent
Alkalines	Excellent	Fair	Fair	Fair	Good	Excellent	Fair	Excellent
Mineral Acids	Excellent	Fair	Good	Poor	Fair	Excellent	Good	Excellent
Oxygen (15%+)	Excellent	Excellent	Excellent	Excellent	Excellent	Poor	Excellent	Excellent
Relative Cost	$	$	$$	$$$	$$$$	$$$$$	$$$$$$	$$$$$$$


Non-Fiberglass	Finish Purpose	Available For
PTFE membrane	For capture of fine particulate, improved filtration efficiency, cake release, and airflow capacity	Nomex®, Polyester, Acrylic, Polypropylene (felt and woven), P84, Procon, Ryton®
Singe	Recommended for improved cake release	Polyester, Polypropylene, Acrylic, Nomex®, Procon, Ryton®, P84(felts)
Glaze/Eggshell	Provides short-term improvements for cake release (may impede airflow)	Polyester, Polypropylene (felts)
Silicone	Aids initial dustcake development and provides limited water repellency	Polyester (felt and woven)
Flame Retardant	Retards combustibility (not flame-proof)	Polyester, Polypropylene (felt and woven)
Acrylic Coatings (Latex base)	Improved filtration efficiency and cake release (may impede flow in certain applications)	Polyester and Acrylic felts
PTFE Penetrating Finishes	Improved water and oil replellency; limited cake release	Nomex® felt

Fiberglass	Finish Purpose	Applications
PTFE Membrane	For capture of fine particulate, improved filtration efficiency, cake release, and airflow capacity	Cement/lime kilns, incinerators, coal-fired boilers, cupola, ferro silica/alloy, furnace
Silicone, Graphite, Teflon	Protects glass yarns from abrasion, adds lubiricity	For non-acidic conditions, primarily for cement and metal foundry applications
Acid Resistant	Shields glass yard from acid attack	Coal-fired boilers, carbon black, incinerators, cement, industrial and boiler applications
Teflon® B	Provides enchanced fiber to fiber resistance and limited chemical resistance	Industrial and utility base load boiler under mild pH conditions