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Tag Archive: Dust Collector Parts

  1. How to Solve Damaged Freight Issues

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    Unfortunately, shipments from any dust collection supplier you work with can sustain damage during transit. While you cannot control what happens in-transit, you can control how you respond to freight that arrives damaged.

    How to Solve Damaged Freight Issues

    How Damaged Freight Affects Your Bottom Line

    Shipping claims and getting replacements for damaged freight can be a frustrating to deal with, but the true price tag of this issue can cost far greater than just a few broken boxes or lost product. Other costs to your business may include:

    Minimizing Damaged Freight Issues

    The U.S. Air Filtration logistics team understands that packaging can play a role in the potential of damaged freight. Your shipment will be handled by many people along the way. So we keep this in mind when we prepare your dust collection order for shipment in the U.S. Air Filtration warehouse, and we follow a system of best practices that can help protect your items as much as possible.

    • Inspection –To avoid shortages we inspect, count, and match up the items to your packing slip.
    • Right Packaging – Our team makes sure that the box is suitable for the item that is shipping.
    • Proper Seals – We distribute tape evenly to ensure your product stays fully sealed in its package. For palletized items, we shrink wrap your freight multiple times to ensure all boxes remains together.
    • Appropriately Sized Pallets – Our warehouse team makes certain that the right sized pallet, also known as a skid, is the right one for the weight and size of the shipment.
    • Clear Shipping Labels – Labels are legible and durable. Paperwork such as a bill of lading or packing slips are placed inside of a protective sleeve.

    How to Solve Damaged Freight Issues 2

    How Do I Receive Freight?

    There is one golden rule of receiving freight that every receiving dock should follow. Do not accept or sign the bill of lading before checking freight for damage, concealed damage, or missing parts.

    It’s critical to pay close attention and inspect all details when you receive a freight shipment. You have the right to record exactly what is missing or damaged. If damaged freight is not recorded, you may not be able to file a successful freight claim.

    When you receive freight, here are the steps you should take.

    Box Count & Damage Inspection

    1. Count the number of boxes received. Compare the box count to the bill of lading for accuracy.
    2. Inspect the shipment for any visible damages. Ensure all packages are consistent.

    Are there any damages present? If yes, then take immediate action with the following steps.

    • Accept the shipment as damaged.
    • Write down all damages or missing box count on the delivery slip.
    •  Take photos to showcase the condition of goods when received.

    TIP: Do not refuse a shipment or discard any damaged freight. Your shipment may get damaged further, or worse, lost in storage. Without your dust collection products in-hand, getting replacements or a freight claim solved can take several weeks longer.

    TIP: Keep a copy of all related documents like the bill of lading, packing slip, and copy of your invoice.

    Communicate Issues

    TIP: There is a limited window of time to submit a freight claim for resolution.

    Report any damages to your supplier within 24 hours of receiving your shipment and they will help your take the next steps. If your shipment was from U.S. Air Filtration here is what you can do:

    • Contact your account manager directly or the USAF main line at 1-888-221-0312.
    • Send all photo evidence and a copy of the delivery slip to USAF.
    • USAF will help start the freight claim process and get you replacements ASAP.

    Damaged freight is a headache that no one wants to deal with. They strain your time and bottom line. If you would like to get help with your damaged shipment, submit your information with our interactive receiving checklist below. Once your information is received, a U.S. Air Filtration rep will be in touch to help.

    Receiving Checklist

  2. Shaker Filter Bags

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    How Shaker Filter Bags Collect Dust

    Shaker baghouses collect dust similar to reverse air baghouses. Dust collects on the inside surface of the shaker filter bags, and then clean air exits through the top of the bag. The main difference is how the bags cleaned.

    How to Clean Shaker Filter Bags

    Shaker baghouses are engineered so that filters are hung and tensioned from the top of the unit, and at the bottom they are attached to a tube sheet. Mechanically shaking the filter bags is what cleans them. Shaker baghouses only clean while the system is off-line. Shaker baghouse operation is simple and can be seen in applications where no compressed air is available.

    Construction of Shaker Filter Bags

    Fabric filter bags used in shaker baghouses are typically constructed with woven or light weight media options like polyester sateen, shaker felt, beane knit, and more. Treatments are dependent on a plant’s application and dust characteristics. The most common top and bottom configurations for shaker baghouses are below.

    Most Common Top & Bottom Construction for a Shaker Baghouse

    Top Load Baghouse: Grommet Top, Loop Top, Strap Top
    Bottom Load Baghouse: Corded Cuff Bottom, Double Beaded Snap Band

    If you would like to get a free media recommendation, check out our filter bag media quiz here. There is also a fabric characteristics sheet that you can download below. It takes a closer look at the most common filter bag medias used in the dust collection industry.

    Dust Collector Filter Bags

    Filter Bag Resources

    To learn more about how to select the right filter bags, you can download our filter bag guide with the link below. The guide provides resources on key topics such as; dust properties, filter media, finishes and treatments, construction, and air-to-cloth ratio.

    Looking to start with the basics? Watch this “Guide to Filter Media” video to learn more about the most common medias used in the industrial dust collection industry.

    Guide to Filter Media

    Are ready to get a set of filters? Check out our online product catalog below. You can also request a quote within 24 hours, call at 888-221-0132, or simply email [email protected]

    Filter Bag Request a Quote



  3. How to Replace Your Dust Collector Diaphragm Valve


    Is your dust collector showing signs of trouble? It could be your diaphragm valve.

    As your dust collector goes through it’s life cycle, your parts start to wear out. Diaphragms are one of the 5 most commonly replaced dust collector parts. These are the common warning signs of trouble and how you can replace a diaphragm valve.

    Common Symptoms of a Worn Out Diaphragm Valve

    • Rubber has crack or holes in it
    • Diaphragm kit is pitted, allowing air to leak through
    • Any holes tears or imperfections indicate it’s time to change it out
    • Is your spring broken? It’s time to replace your diaphragm valve.

    Once you’ve diagnosed your issue, you’ll need to fix it. Below is a short video guide that provides step-by-step instructions on how to replace a diaphragm valve.

    Replace a Diaphragm Valve Video Transcript:

    Hi, this is Bob with US air filtration. And today I’m going to show you how to change out the diaphragm inside a solenoid pulse valve.

    Pulse Valve Types

    As you can see here pulse valves come in a lot of different sizes and shapes. Some valves have coils on the top, and some don’t. Pulse valves can have two diaphragms or one. Others have couplings, threads, or flange connectors. But the process of changing out the diaphragm is really very similar in all of them.

    First Steps to Replacing a Diaphragm Valve

    I’m going to show you today, on this particular valve, how to change out the diaphragm.

    First thing that we’re going to do is remove the bolts that are holding on the top of the belt. I’m using a socket set and I’m going to loosen these up. Once I get all the valves loose I can pull off the top.

    I’ll tell you, sometimes when these valves have been sitting, especially out in the sun for a while getting this top piece off isn’t really easy. You may need to take a screwdriver and a hammer and just tap it lightly there where the rubber is to help get the top off.

    But once you get the top off you can remove the spring and you can peel off the diaphragm.

    Diaphragm Valve Bleed Hole / Pin

    Now in some pulse valves, well in all pulse valves, there’s a little bleed hole. And often times, there’s a pin this particular one, has a little pin right here that this allows the air pressure to equalize between the two halves of the valve.

    It’s really important that we don’t block this hole or damage this pin when we put the valve back together.

    New Diaphragm

    Once we pull off the old diaphragm kit, we can grab the new diaphragm. And the first thing we want to do is find out where that bleed hole is in the diaphragm. Here, it’s this hole right here. We’re gonna place that right over the pin.

    The teflon disc or it’s a rubber disc on your diaphragm goes down so that it seats up against this part of the valve. It’s not a bad idea to look and make sure that there’s no damage to the the body of the valve.

    Typically though these aluminum bodies; it’s really hard to damage them. I don’t usually see problems with them. It’s usually the diaphragms that go.

    We’re gonna line up the hole with the bleed hole. And make sure our holes line up and put our diaphragm back then.

    Then we need to make sure that we have the spring that comes with the repair kit that goes back on top of the diaphragm and then we’re gonna put the top back on.

    Now just like I mentioned, with this bleed hole, there’s a place where the bleed hole on this top cover goes. We need to make sure we’ve lined that bleed hole up with the bleed hole here.

    If we block it, the valve is not gonna work. Or if you don’t put it on correctly, and there’s a pin, you’ll squash the pin. And then you’re gonna have to buy a new valve just to replace this little pin.

    We’re gonna line this up. And I can kind of feel it set on the right. And then we’re just going to tighten down all the bolts.

    Tighten Bolts

    Now once I get everything finger tightened I want to go ahead and tighten these bolts down.

    If I don’t tighten the bolts down properly, and you don’t get this clamping this diaphragm together, you’re gonna get a leak outside of the valve.

    The best practice is, with your ratchet, is to tighten the bolt on one side and then go to the opposite side and tighten it down. And then just keep going about 180 degrees so that your getting a nice even pressure.

    Upper Smaller Diaphragm

    Okay now we need to do the little diaphragm.

    I’m gonna pull off this coil, which I could have done before. And actually if you have electrical wires connected to this, it helps to pull off the coil.

    I might add too, before you start this you need to turn off the compressed air to your valve. Or as soon as you start releasing this, it’ll just start blowing everywhere

    Okay. So to change out this upper smaller diaphragm we need to loosen up these four bolts here with an allen wrench.

    I’m going to loosen all of these up and then remove these bolts.

    Okay once all the bolts are loose, you can lift off the top. Once again, there’s a spring and the diaphragm. You’ll grab the new diaphragm with the little metal side down.

    Again there’s a little tiny pin right there for the bleed hole. Every diaphragm is gonna have a bleed hole somewhere that you need to make sure you line up.

    There are a few types of valves that the bleed hole is actually in the body of the diaphragm.

    In those cases you don’t have to worry about it too much. But a lot of valves have these pins.

    So, I’m gonna line this bleed hole up and put it on. And take the new spring and put it on. And then I’m going to make sure that my hole right under here, where the bleed hole goes, is gonna go right over that bleed hole.

    I can feel it seat down on there. And again I’m gonna tighten the bolts.

    Everything’s good and tight. Put our coil back on.

    And now we’re ready to turn the compressed air back on, and test our valve to make sure it all works.


    Related Resources:

    Dust Collector Change Out Check List

  4. Pulse-Jet Filter Bags

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    Introduction to Pulse-Jet Filter Bags

    How Pulse-Jet Filter Bags Collect Dust

    Pulse-jet filter bags are used to remove dust particulate and contaminants from the air in warehouses, plants, factories, foundries, and more. Pulse-jet is one of the most common styles of baghouses you will see across a variety of industries and applications. With this style of baghouse, dust collects on the outside of the filter as clean air exits through the inside of the bag.

    How Pulse-Jet Filter Bags are Cleaned

    To clean pulse-jet baghouse filters, a blast of compressed air is injected through a blowpipe over each row of bags via a venturi. In a pulse-jet baghouse one row of bags can be cleaned while the remaining rows continue to collect dust particulate. This is known as on-line cleaning.

    Construction of Pulse-Jet Filter Bags

    Pulse-Jet baghouses are engineered to hold either bottom or top load filter bags and cages. Fabric filter bags used in pulse-jet and plenum pulse baghouses come in a variety of medias and treatments. The type of filter media and treatment that’s best will be dependent on a plant’s application and dust characteristics. To get a free filter recommendation, check out our filter bag media quiz here. You can also download our fabric characteristics sheet to get a closer look at the most common filter bag medias used in the dust collection industry.

    Dust Collector Filter Bags

    Most Common Top & Bottom Construction for a Pulse-Jet Baghouse

    Top Load Baghouse: Double Beaded Snap Band Top, Disc Bottom
    Bottom Load Baghouse: Raw Top, Disc Bottom

    Filter Bag Resources

    To learn more about how to select the right filter bags, you can download our filter bag guide with the link below. The guide provides resources on key topics such as; dust properties, filter media, finishes and treatments, construction, and air-to-cloth ratio.

    Filter Bag Guide

    Video: Guide to Filter Media

    Guide to Filter Media

    If you are ready to get a set of filters you can check out our online product catalog, request a quote within 24 hours, call at 888-221-0132, or simply email [email protected]

    Filter Bag Request a Quote


  5. Guide to High Temperature Dust Collector Filter Bags


    High Temperature Filter Bags

    Is your application operating at a high temperature over 275 degrees Fahrenheit? If so, there are many dust collector filter bag options to choose from. Outlined below is your guide to high temperature dust collector filter bags. We’ve broken down characteristics and properties of the top five most common filter media options.


    Aramid filter media, otherwise known by the brand name Nomex©, can handle up to a maximum continuous operating temperature of 400 degrees Fahrenheit. The main advantage of Aramid is how well Aramid can withstand high heat. In fact, Aramid media is commonly used in household oven mittens. Aramid is not ideal for applications looking for acid resistance.

    Aramid filter media is commonly used in asphalt plants and rock plants where there is high heat but are no chemical issues. You can typically distinguish an Aramid filter bag by its color. It is usually yellow and can have brown speckles which is caused by singeing.

    Aramid (Nomex) Filter Bag Media

    Relative Cost$$$
    Max Continuous Operating Temperature400 Degrees F.
    Energy AbsorpsionGood
    Filtration PropertiesExcellent
    Moist HeatGood
    Mineral AcidsFair
    Oxygen (15%+)Excellent
    Provides great resistance to highly abrasive dust applications.Mineral oxides can cause deterioration or partial decomposition over time.
    High Temp Dryers


    Fiberglass filter media has been the leading industry standard for dust collection applications where high temperatures above 500 degrees Fahrenheit are present. Fiberglass filter media is composed of a dense structure of fine fiberglass filaments. You’ll see Fiberglass used in industries such as energy, chemicals, and minerals.

    It is cost efficient when compared to similar high heat filter medias and is the most common choice for situations where heat is above 400 degrees Fahrenheit. Fiberglass can have a lot of variation in color, and depending on the application, can have different types of treatment (i.e. silicon, carbon).

    Fiberglass Filter Bag Media

    Relative Cost$$$$
    Max Continuous Operating Temperature500 Degrees F.
    Energy AbsorptionFair
    Filtration PropertiesFair
    Moist HeatExcellent
    Mineral AcidsPoor
    Oxygen (15%+)Excellent
    Performs excellent in high temperature applications up to 500 Degrees Fahrenheit.Sensitive bag to cage fit. Has poor flex abrasion qualities and would require a cage with 20 vertical wires for minimum support.
    Power Plants
    Cement Kilns
    Carbon Black Reactors


    PPS, also otherwise known by the proprietary name Ryton© or Procon© is commonly used in dust collection applications that require excellent resistance to acids and alkaline. Out of all the options for high temperature filter medias, PPS has the lowest tolerance to heat in comparison with others but handles chemicals better. PPS can be used in applications with maximum continuous operating temperatures of 375 degrees Fahrenheit. PPS filter bag media is commonly used in carbon black, chemicals, cement, asphalt, coal fired boilers, and incinerator applications.

    PPS (Ryton©/Procon©) Filter Bag Media

    Relative Cost$$$$$
    Max Continuous Operating Temperature375 Degrees F.
    Energy AbsorptionGood
    Filtration PropertiesGood
    Moist HeatGood
    Mineral AcidsExcellent
    Oxygen (15%+)Poor
    Excellent resistance to acids and alkaline Sensitive bag to cage fit.
    Asphalt Plants
    Cement Mills


    P84 (polymide) dust collector filter media is used in operating conditions of a maximum 500 degrees Fahrenheit. P84 performs well under dry high heat temperatures and can even withstand some elevated levels of moisture. P84 has a slightly better resistance to acids than PPS. This is a proprietary fabric that is imported from Germany to all manufacturers. For these reasons, P84 is one of the more expensive filter medias used in pulse jet baghouse dust collectors. P84 filter can be seen in used in waste to energy, power, lime kilns, smelting, glass and ceramic, and cement applications.

    P84 Filter Bag Media

    Relative Cost$$$$$$
    Max Continuous Operating Temperature500 Degrees F.
    Energy AbsorptionGood
    Filtration PropertiesExcellent
    Moist HeatGood
    Mineral AcidsGood
    Oxygen (15%+)Excellent
    Excellent stability in applications with high dry heat temperatures, mineral acids, and alkaline.Must oversize bag for shrinkage that can occur in temperatures above 450 Degrees F.
    Coal Fired Boilers


    PTFE, otherwise known as Teflon, is one of the most expensive dust collector filter medias used in pulse jet baghouse dust collectors. PTFE is considered a premium filter media because it can deliver superior dust cake release, withstand high heat temperatures of up to 500 degrees Fahrenheit, resist acids and moist heat. Cement, steel foundries, coal fired power plants, carbon black, steel and energy applications are just a few example of industries that use PTFE. PTFE is alfso known by its proprietary names Gore-Tex© and Tetratex©.

    Teflon Filter Bag Media

    Relative Cost$$$$$$$
    Max Continuous Operating Temperature500 Degrees F.
    Energy AbsorptionGood
    Filtration PropertiesFair
    Moist HeatExcellent
    Mineral AcidsExcellent
    Oxygen (15%+)Excellent
    Teflon delivers superior dust cake release and high filtration efficiency in high heat applications that demand high resistance to acids and moist heat. Must oversize bag for shrinkage that can occur in temperatures above 450 Degrees F.
    Steel Foundries
    Coal Fired Power Plants
    Carbon Black Plants

    Do you need more information after reading this guide to high temperature dust collector filter bags? If you need help, one of our account managers can help find the right fit for you. Contact us at 888-221-0312, email [email protected] or request a consultation here.

    Filter Bag Request a Quote

    Dust Collector Filter Bag Resources

    In search of additional dust collection resources to help you? Get a free download of our How to Select the Right Filter Bag eBook below. It’s a full guide organized into key topics such as dust properties, filter bag finishes, air to cloth ratio, filter bag construction, and more.

  6. Polyester vs Polypropylene Filter Bags

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    Polyester vs Polypropylene Industry Use

    Today we are exploring the differences between Polyester vs Polypropylene filter bags. Polyester is one of the most widely used filter bag medias in the dust collection industry because of its reliable performance in a broad range of applications, relatively low cost, and availability. Many industries including food manufacturing, woodworking, metalworking, building products, and energy have used polyester filter bags to achieve peak dust collection performance. If you continuously operate between temperatures of ambient – 275 degrees Fahrenheit and you have less than 10% moisture in your application, then polyester may be the right fit for your application.

    Polypropylene is also another relatively low-cost filter bag media. The main difference between polyester and polypropylene is how well polypropylene can withstand moisture. If your continuous operating temperatures are between ambient – 170 degrees Fahrenheit, and you have more than 10% moisture in your application, then Polypropylene could be the right fit for your baghouse.

    To find out which media is the right fit for your specific application you can take our filter bag media quiz that will provide an instant recommendation based on your application.

    Polyester vs Polypropylene Filter Bag Treatments and Finishes

    Depending on your specific needs an additional filter bag treatment or finish could be lengthen the life of your filter bags.

    Polyester Filter Bag Finishes & Treatments

    • PTFE Membrane – Can double the life of a standard filter bag, reduce wear and tear, reduce maintenance costs, reduce energy costs, and more.
    • Hydro-oleophobic coating – Aids in filtration and adds resistance to water and oils.
    • Acrylic – Can help improve cake release and filtration efficiency in certain applications.
    • Anti-static – Helps ground the filter bag.
    • Singed – Removes straggly fibers which provides a uniform surface area and improved dust cake release.
    • Glazed – Improved mechanical stability since fibers are fused to the body of the filter medium.
    • Calendered – Flattens and smooths the filter medium. This can increase surface life, dimensional stability, and provides a more uniform fabric surface.

    Polyester Filter Bag Media

    Relative Cost$
    Max Continuous Operating Temperature275 Degrees F.
    Energy AbsorptionExcellent
    Filtration PropertiesExcellent
    Moist HeatPoor
    Mineral AcidsFair
    Oxygen (15%+)Excellent

    Polypropylene Filter Bag Finishes & Treatments

    • PTFE Membrane
    • Singed
    • Glazed

    Polypropylene Filter Bag Media

    Relative Cost$
    Max Continuous Operating Temperature170 Degrees F.
    Energy AbsorptionGood
    Filtration PropertiesGood
    Moist HeatExcellent
    Mineral AcidsExcellent
    Oxygen (15%+)Excellent

    Dust Collector Filter Bag Resources

    If you’re looking for additional filter bag resources such as construction, air-to-cloth ratio or dust properties you can download our filter bag eBook below. You can also access our filter bag characteristics chart below.

    Ready to find your filter and need a quote within 24 hours? Simply follow the link below and we’ll help with your filter bag request.

  7. Industrial Dust Collector Filter Bags

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    Table of Contents

    • Key components to choosing the right filter bag media for your Dust Collector
    • How air to cloth ratio affects the performance of your filter bags
    • The ideal filter bag construction
    • Filter Bag treatments to extend bag life
    • Cage construction for your filter bag
    • Optimize dust collector performance with a maintenance plan


    Industrial dust collector filter bags are used in multiple styles of industrial dust collection systems that range from pulse-jet, plenum-pulse, reverse air, and shaker baghouses. Filter bags aid in collecting dust particulate which helps to improve air quality, eliminate potential fire hazards, and keep dust from negatively affecting the product quality.

    Filter bags are used in industries such as woodworking, cement, chemicals, construction, mining & minerals, agriculture, metalworking and much more.

    Key Components to Choosing the Right Filter Bag Media for your Dust Collector

    Watch Video: Understanding Dust Properties

    Understanding Dust Properties

    Understanding the properties of your dust particulate is a key component to choosing the right filter bag media. The right media allows you to get the best performance and longevity out of your dust collector filters. Consider the following properties and how they play a role in your filter media choice:


    What you are filtering? Does your application contain moisture or oil? Products that contain oils and hydrocarbons may need additional filter bag treatment.


    What the size of the dust you are filtering?


    What is your operating temperature? What is your max temperature? If you are operating at a high temperature, you will need specific filter bag media or a special treatment to withstand the heat. Temperature ranges for dry dust collection can be typically sorted into the following categories:

                        -Ambient – 265 Deg F

                        -275-375 Deg F

                        -400-500 Deg F


    Does your application contain dust particles that have a chemical make-up? If so, you may require a media treatment or coating that will prevent your filter bags from accelerated wear.


    How abrasive is your dust? Consider the hardness of the material that is being filtered along with the shape. If it is abrasive, you will need a filter bag media with the ability to resist the additional wear and tear.

    Combustible Dust

    Is your dust combustible? The most combustible types of dust are dust from wood, sugar, or fine aluminum but there is a wide range of industries that operate with combustible dust.

    For help finding the right filter media for your application, try our filter media quiz to get your recommended filter media.

    How Air to Cloth Ratio Affects the Performance of your Filter Bags

    Air-to-Cloth ratio is a measurement of the amount of air passing through one square foot of filter media. Calculating the right air-to-cloth ratio allows your dust collector system to run at peak performance, it extends filter life, minimizes operating costs, and helps you to meet air quality goals. When calculating air-to-cloth ratio for your dust collection system, keep in mind that generally the lower your air-to-cloth ratio, the more effective your system is at removing dust from the work environment. Increased differential pressure, frequent change outs, and reduced airflow due to a buildup of dust cake are just come of commonly experienced problems with a higher air-to-cloth ratio.

    Air-to-Cloth Ratio

    Watch Video: Air-to-Cloth Ratio

    Air to Cloth Ratio

    The Ideal Filter Bag Construction

    There are a few commonly used industrial dust collector filter bag medias used with industrial dust collectors. Polyester, Aramid, Fiberglass, P84, and PTFE are all common options that are available at different price points and have varying characteristics such as maximum operating temperature, resistance to chemicals and acids, ability to withstand abrasion and more.

    Dust Collector Filter Bags

    Top 3 Common Filter Bag Medias

    Watch Video: Guide to Filter Media

    Guide to Filter Media


    Polyester is widely available at a relatively low cost. Polyester filter bag media offers great dimensional stability and has good overall qualities to resist abrasion while performing well with dry temperatures. It’s used in woodworking, manufacturing, food processing and more.


    Aramid, also known as Nomex©, is widely used in high temperature applications with a continuous operating temperature of 400 degrees Fahrenheit. Aramid filter media is frequently used in industries such as cement, foundries, and metalworking and castings.


    Fiberglass filter media is a leading industry standard for applications where continuous operating temperatures of 500 degrees Fahrenheit are prevalent. It’s most commonly used in industries such as chemicals, minerals, and energy pipeline and utilities.

    When it comes to filter bag construction there are a wide variety of configurations. The simplest way to understand the top and bottom construction needed for your filter bag will be knowing the type of dust collector system you have. There are three common types of baghouses; pulse-jet and plenum pulse, reverse air, and shaker.

    Pulse-jet and plenum pulse baghouses are the most widely used style of dust collector. They can be configured as either top load or bottom load. If your baghouse is top load the most common filter bag construction is a double beaded snap band top with a disc bottom. If you have a bottom load baghouse the most common construction is a raw top with disc bottom.

    Reverse air baghouses are typically seen in large air handling applications. The most common filter bag configuration is a compression band with cap and hook for the top. For bottom configuration you will typically see either a compression band, corded, or double beaded snap band.

    Shaker baghouses are generally simple and can be seen in applications where there is no compressed air available. In shaker baghouses the filter bags are hung and tensioned from the top of the unit, and at the bottom they are attached to a tube sheet. The most common top configurations are grommet top, loop top and strap top. Bottom configurations can range from corded cuff or a double beaded snap band.

    How to Measure Filter Bags Video

    To measure a bag, you need to get three critical dimensions. The first dimensions that we need to know is the snap band size. This is actually the hole size in your baghouse that the bag snaps into. We also need to know the bag body diameter. Which is the diameter of the bag, at the midsection of the bag. And we need to know the overall length.

    How to Install a Snap Band Filter


    Filter Bag Treatments to Extend Bag Life

    Applying a specific finish or treatment is one way you can lengthen the life of your filter bags and achieve better performance. Whether your filter bag media is constructed of synthetic or natural fabrics, treatments such as  calendering (glazing), napping, singeing, or coating are available.

    Benefits of PTFE Membrane Video

    PTFE Membrane

    One specific filter bag treatment that stands out among the rest is commonly known as Teflon or PTFE. It’s used in many different applications but when specifically laminated to a filter bag media it can enhance the performance of both the filter bag and the dust collection system.


    This is also known as glazing and is done to increase and uniform surface life, improve stability and reduce shrinkage.


    Fabrics used for collecting sticky or oily dusts are sometimes napped so they can provide better collection and an easier cleaning process.


    This removes any straggly surface fibers and results in a more uniform filter bag surface


    This process helps lubricate the woven fibers, provides high-temperature durability, and various fabrics.

    Cage Construction for Your Filter Bag

    Industrial dust collector filter bags require internal support structures referred to as cages. Cages will provide the support needed for filter bags to stay open during the dust collection cycle. The construction of your cage will depend on the design of your baghouse; top or bottom load.

    Optimize Dust Collector Performance with a Maintenance Plan

    There is no disadvantage to being proactive and implementing a maintenance plan for your dust collection system. It helps detect any issues before they become a larger problem. Some of the benefits of a dust collection maintenance plan are long filter life, prevention of dust collection explosions, and reduced unplanned downtime throughout the year.

    Watch Video: 5 Most Commonly Replaced Dust Collector Parts

    5 Commonly Replaced Dust Collector Parts

    How to Detect a Dust Collector Leak Video

    Find the Right Solution for Your Application

    If you would like additional help finding the right solution for your application, we can do that! You can contact one of our experienced account managers at 888-221-0312 or email [email protected] Already have information and just need a quote? You can also submit your specs here and get a quote in 24 hours!

    For maintenance, troubleshooting and other resources, subscribe to our YouTube channel, follow us on Twitter, and like us on Facebook & LinkedIn.


  8. Dust Collection Lead Times and Shipping During the Holidays

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    Dust Collection Lead Times

    There are many variables that impact dust collection lead times, particularly during a pandemic.  Whether you are returning to work, ramping up production, or are planning a change-out during  this holiday season, consider the following factors that can have an impact on your lead times.

    • Media Availability: Specialty or rare media is usually not in-stock and may need to be sourced or fabricated. Examples include media such as PPS, P84, PTFE on PTFE, Fiberglass, Basalt, and Aramid (depending on seasonal availability and media weight requested), etc.
    • Custom Features: Dust collector parts with features, dimensions, or accessories that are not common. This can include oval shaped cages, uncommon weights for filter media (e.g. Aramid 16 oz.), and more.
    • Production Schedule: Dust collector change-outs and maintenance are often seasonal depending on factors such as location and industry. Production schedules can get backed up when an influx of orders are received around the same time. For example, change-outs in the Northeast region of the U.S. are commonly scheduled in the spring or fall season. This is because a large percentage of customers want to avoid conducting change-outs in the extreme temperatures of summer and winter months.
    • Holidays: Holidays can impact everything from production to shipping. If you have a scheduled change-out during a long holiday weekend, it is best to cushion in additional time to receive and inspect your order.

    If you are returning to work after a long hiatus, we have created a return to work dust collection start-up guide and a dust collector maintenance eBook that you can download below to help get your dust collection system started safely.

    Return to Work Guide

    Dust Collector Maintenance eBook

    Dust Collection Shipping

    Shipping will continue to change and evolve, especially during the holiday season. We want to help you get what you need, when you need it. We also want to be as transparent as possible and provide the most up to date changes regarding dust collection lead times and shipping. The standard procedures and guarantees that you may have been used to with shipping, may have been modified. Below are some of the top changes that directly affect a large portion of businesses.


    1. Changes to the UPS Service Guarantee: Effective March 26, 2020 and until further notice, the UPS Service Guarantee is suspended for all shipments from any origin to any destination. Commitment times for some services have also changed.
    2. Is UPS slowing down delivery service? The majority of UPS services continue with the same expected delivery timeframes customers have come to expect. While UPS has suspended their Service Guarantee, they are committed to providing timely and reliable service.

    For more details and answers to some of your other questions, we highly recommend checking the UPS website for the latest changes and service alerts: UPS Notices and Service Alerts


    1. Changes to Fedex Money Back Guarantee: Earlier this year and until further notice, FedEx suspended money-back guarantee for all FedEx Express, FedEx Ground, FedEx Freight and FedEx Office services.
    2. Do I need to sign for my package? Until further notice, Fedex has suspended Signature Required for most shipments.

    For more details and answers to some of your other questions, we highly recommend checking the Fedex website for the latest changes and news: Fedex Notices and Alerts

    Freight Carriers

    This year multiple freight carriers have minimized their workforce or altered their protocols as businesses slowly ramp up production or remain closed in response to COVID-19. Many carriers adapted quickly and implemented safety measures for their remaining staff to maintain continuity of shipping services. As freight carriers navigate through ever-evolving changes and face the upcoming holiday season, you may experience a delay in general delivery times.

    To get more detailed information about a specific carrier, please check their website directly for the latest updates or changes.

    Warehouse Management

    Should businesses’ and warehouses ramp up holiday hours, we want to help you avoid costly delays or complications. Implementing a comprehensive receiving process is one way to eliminate added time or delays to your dust collector start-up or change-out.

    To get a comprehensive receiving check list, access and download our guide below.

    Download My Free Receiving Check List

    Once the receiving process is complete, and as soon as you are able to, you can access our filter bag check list below. The check list will help guide you through the process of verifying product count, fit, and what to do should you encounter any issues.

    Download My Free Filter Bag Check List

  9. Rotary Valve FAQ’s

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    What is a Rotary Valve?

    Rotary valves (also known as airlocks, rotary feeders, or airlock feeders) are used to transition material from one pressurized point, such as a dust collector, to another unpressurized point, such as a drum or bin. Rotary valves help seal a pressurized system against loss of air and pressure. Rotary valves also help ensure loss of product during processing is minimized.

    Rotary Valve Applications

    Typical dust collection applications for rotary airlocks are dust collection, pneumatic conveying, pollution control, mixing, feeding, weighing, drying, and blending. Some of the relevant industries for rotary airlocks include metalworking , cement, minerals, agriculture, wood, paper, rubber, textiles, grains, paint, pharmaceutical manufacturing, and many more.
    Typical Products for a Dust Collector Rotary Valve

    • Baking Soda
    • Corn or Corn Meal
    • Cloth
    • Flour
    • Grains
    • Grits (Corn)
    • Minerals
    • Oats (Rolled or Whole)
    • Peanuts (Roasted)
    • Soybean Flakes (Raw or Spent)
    • Starch (Granulated or Powdered)
    • Talcum Powder
    • Paint
    • Tobacco (Ground)
    • Wheat
    • Woodworking or paper pulp
    • Yarn
    • And more

    How to prevent a dust collector explosion

    Rotary Valve Construction

    The main parts of a rotary valve comprise of the following:

    • Housing
    • Vanes
    • Motor (Can come in various combinations for a multitude of applications and environments. For example; speeds, explosion/spark proof, chain driven vs. direct driven, and more.
    • Drive, reducer or gear box which takes speed and converts it into power

    Round rotary valve

    Rotary Valve Options

    Depending on your industry, application, and environment there are a few rotary valve options that could work for your facility. Here are some of those options in further detail:

    • Temperature:
      • High Temperature: Can expand when exposure to high heat. The rotary valves vanes are also shortened to leave a gap between the vanes and housing.
      • Low Temperature: Should be used or low or regular temp
    • Vanes: Standard is 6 vanes but 8 vanes can be made available, but would be more time and cost consuming.
    • Size: Sizes can vary from 6, 8, 10, 12, 14 and larger depending on application
    • Shape – Square or Round
    • Duty: Heavy duty or regular duty
    • Material:
      • Cast Iron (standard)
      • 304 Stainless Steel (resistant to most chemicals)
      • 316 Stainless Steel (resistant to chemicals 304 stainless steel can’t handle)
      • Chrome Plated Cast Iron (harder than steel, best for abrasive material)
    • Tips:
      • Beveled Steel Tips (standard – beveled spins counter clockwise so as not to compact the material and bind the vanes)
      • Replaceable Steel Edge – (good for applications that vary in their process)
      • Urethane Tips (best for large particles that may wedge between the vanes)
    •  Rotor: Open or Closed
  10. Taeha Valves

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    Taeha is one of the major brand name valves amongst Goyen, Mecair, and Asco. Their die casted aluminum valves are specially designed for air pulse style dust collectors.

    Connection Styles of Taeha Pulse Valves

    There are five types of Taeha pulse valves, and they are segmented by connection type. You will see the connection type indicated at the end of a Taeha pulse valve part number.

    1. B Type – Threaded (screw) style
    2. C Type – Compression coupling
    3. F Type – Has an flanged inlet and coupling connection outlet inlet flange and the outlet is a coupling connection
    4. M Type – Manifold Valve is integrated into the air manifold.
    5. S Type – Straight Screw type. This particular style of connection is unique to Taeha and only one other valve manufacturer. The connection style is threaded but the inlet and outlet are straight or considered a pass through. The sizes for this valve are also limited and only comes in 2 ½” pipe size.

    Taeha Valve Part Numbers

    Now that we have differentiated between the different connection types, we can examine the string of four digits in a Taeha valve part number and what they indicate.

    For this example, we will be using the Taeha part number TH-5825-B. The first two digits in this string of numbers will tell you if your Taeha valve is remote or integral.

    • 58 – is a remote valve
    • 48 – is an integral valve

    The second digit will tell you if the valve has one or two diaphragms (single or double diaphragm pulse valve)

    • 58 – is single diaphragm remote valve
    • 48 – is a single diaphragm integral valve
    • 54 – is a double diaphragm remote valve
    • 44 – is a double diaphragm integral valve

    The last two digits, 25 in this example, indicate the size of the valve’s opening in millimeters. A 25 millimeter sized valve would be equivalent to 1 inch when converted. So, part number TH-5825-B is a remote single diaphragm 1” valve with a threaded connection style.

    Finding in-stock replacements for Taeha valves can be frustrating. There are only a couple of vendors that supply Taeha valves, kits, or enclosures and US Air Filtration is one of them. If you are looking for a replacement, you can easily request a quote and receive one within 24 hours by submitting your parts information to the link below.