Fabric Characteristics – P84 versus Teflon

Some of the information presented below is for general guideline purposes.  Varying sets of conditions may affect performance.

 

Are you looking for the best media fit for the baghouse filters?  Having issues or are you changing out your filters too often?  Looking into the media you use, and how that fits your application, can be one way to get you to the next step or solution.

 

Listed below are the benefits and characteristics of two type’s media (out of several) that we can supply.  If you would like any more information, spec sheets, or to talk to a responsive representative that can help, please contact us at 888-221-0312.

 

P84:

  • Max Continuous Operating Temp: 500 Deg F
  • Abrasion: Fair
  • Energy Absorption: Good
  • Filtration Properties: Excellent
  • Moist Heat: Good
  • Alkalines: Fair
  • Mineral Acids: Good

 

PTFE (Teflon):

  • Max Continuous Operating Temp: 500 Deg F
  • Abrasion: Good
  • Energy Absorption: Good
  • Filtration Properties: Fair
  • Moist Heat: Excellent
  • Alkalines: Excellent
  • Mineral Acids: Excellent

 

 

Filter Bag Bottom Designs for a Reverse Air or Shaker Dust Collector

U.S. Air Filtration can provide filter bags for a variety of dust collector systems. In order to offer the most effective collector filter bag for your particular need, it is important that we know the correct bag fabric needs, and the bag design.

 

In a baghouse using reverse air or shaker cleaning systems, the particulate is collected on the inside surface of the bag. Below is a general outline of the most common types of bottom bag construction you would see for reverse air or shaker dust collectors.  For more information on any specific needs, please call our parts team at 888-221-0312.

 

  • Sewn Flat
  • Snapband Cuffs
  • Tuffskirt
  • Cord Cuffs
  • Snapband Cuffs w/ Double Grooved Gasket
  • Disc Bottom

 

 

Employee of the Month

Without consistent work and effort from each individual here at U.S. Air Filtration, Inc., life at work would be much harder! We would like to take a moment to recognize the employee of the month for both July and August.

Jackie – July Employee of the Month
Tim – August Employee of the Month

Thank you for all that you do!

 

 

Filter Bag Top Designs for a Reverse Air or Shaker Dust Collector

U.S. Air Filtration can provide filter bags for a variety of dust collector systems. In order to offer the most effective collector filter bag for your particular need, it is important that we know the correct bag fabric needs, and the bag design.

 

In a baghouse using reverse air or shaker cleaning systems, the particulate is collected on the inside surface of the bag. Below is a general outline of the most common types of top bag construction you would see for reverse air or shaker dust collectors.  For more information on any specific needs, you can go to our website here or please call our parts team at 888-221-0312.

 

Reverse Air or Shaker Dust Collector 

  • Grommet Top
  • Loop Top
  • Trap Bags
  • Strap Top
  • Envelope Style
  • Cord Top Cuffs

 

 

Filter Bag Top and Bottom Designs for a Pulse-Jet Dust Collector

U.S. Air Filtration can provide filter bags for a variety of dust collector systems. In order to offer the most effective collector filter bag for your particular need, it is important that we know the correct bag fabric needs, and the bag design.

 

Plenum and pulse jet baghouses collect dust on the outside of the filter.  Below is a general outline of the most common types of bag construction you would see for a pulse jet or plenum pulse dust collector.  For more information on any specific needs, please call our parts team at 888-221-0312.

 

Pulse-Jet and Plenum Pulse Dust Collector

 

  • Snap Band Cuff
  • Flange Top
  • Ring Top
  • Sleeve Top
  • Hem Top
  • Raw Edge
  • Disc Bottom Bags

 

 

Pretreatment for Baghouse Filters

In today’s post we will be breaking down different fabric treatments for baghouse filters and how these pretreatment processes effect your filter medium.

 

  • Calendering: High pressure pressing of the fabric by rollers to flatten or smooth the material.
  • Napping: This is the scraping of the filter surface across metal points or burrs on a revolving cylinder.
  • Singeing: This is done by passing the filter material over an open flame, removing any straggly surface fibers.
  • Glazing: High pressure pressing of the fiber at elevated temperatures.  The fibers are fused to the body of the filter medium.
  • Coating: Involves immersing the filter material in natural or synthetic resin such as polyvinyl chloride, cellulose acetate, or urea-phenol.

 

Some of the results and reasons to use these pretreatments are:

 

  • Calendering: Result is that it flattens, smooths or decorated the filter medium.  This can increase surface life, dimensional stability, and provides a more uniform fabric surface.
  • Napping: The result is that it raises surface fibers, which can provide extra areas for interception and diffusion.
  • Singeing: Removes straggly fibers and provides a uniform surface area.
  • Glazing: Fibers are fused to the filter medium as a result.  This improves mechanical stability.
  • Coating: This helps to lubricate woven fibers.  Coating helps provide high temperature durability as well as chemical resistance for various fabric material.

 

 

 

Filter Bag Construction

In today’s post we’ll be going back to the basics of the dust collector industry and filter bags. We’ll be diving into filter construction to help us build a foundation of better understanding, or for those who have been in this industry for a while, a refresher course on the basics!

 

Filter Construction:

 

Filter bags used in the industrial dust collection industry can be made of woven or nonwoven materials.  Nonwoven materials can further be divided as felted or membrane.  Most bags are either completely or partially made by weaving since nonwoven fabrics are generally attached to a woven base called a scrim.  Woven filters are made of yarn with a definite repeated pattern.  Felted filters are composed of randomly placed fibers compressed into a mat and attached to loosely woven backing material.

 

A membrane filter is a special treatment where a thin, porous membrane is bonded to the scrim or support fabric.

 

  • Woven Filters: Generally used with low energy cleaning systems such as shaker or reverse air baghouses.
  • Felted Filters: Usually used with higher energy cleaning systems such as pulse jet dust collectors.
  • Membrane Filters: Developed in an effort to achieve high efficiency particle capture and to handle flue gas conditions where high moisture resulting high pressure drop problems frequently occur.

 

 

Are You Ready for a Fall Change Out?

Are you already starting to plan for your company’s fall change out? If you want to get ahead of the game and start planning for that now, one of our responsive sales representatives can help you by finding the best options that can meet your timeline and budget.

If your change-out is scheduled sooner, and you are in urgent need of replacement parts, we do stock a large variety of repair kits and filters in various sizes and media.  If you find yourself suddenly in a bind, and in need of dust collector parts right away, please call us with any questions at 888-221-0312.

If you’re looking for some how-to guides on filters and installation, you can find some great tutorials in our video library on our website at www.usairfiltration.com or by clicking here.

 

 

Success is the Result of….

Last Day of the Month!  That means we are pushing for success, setting new goals, and learning from our past.

 

“Success is the result of perfection, hard work, learning from failure, loyalty, and persistence.” – Colin Powell

 

 

 

Fabric Characteristics: Aramid (Nomex) vs Fiberglass

Are you looking for the best media fit for your baghouse filters?  Having issues or are you changing out your filters too often?  Looking into the media you use, and how that fits your application, can be one way to get you to the next step or solution.

 

Listed below are the benefits and characteristics of two type’s of media (out of several) that we can supply.  If you would like any more information, spec sheets, or to talk to a responsive representative that can help, please contact us at 888-221-0312

 

Aramid (Nomex):

  • Max Continuous Operating Temp: 400 Deg F
  • Abrasion: Excellent
  • Energy Absorption: Good
  • Filtration Properties: Excellent
  • Moist Heat: Good
  • Alkalines: Good
  • Mineral Acids: Poor

 

Fiberglass:

  • Max Continuous Operating Temp: 500 Deg F
  • Abrasion: Fair
  • Energy Absorption: Fair
  • Filtration Properties: Fair
  • Moist Heat: Excellent
  • Alkalines: Fair
  • Mineral Acids: Poor

 

Some of the information presented above is for general guideline purposes.  Varying sets of conditions may affect performance.

 

 

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