Entries by Andy Biancotti

How to Select the Right Dust Collector Rotary Valve

Dust collector rotary valves, also known as rotary airlocks or rotary feeders, are essential components in many industrial processes that involve the handling of bulk materials and are very commonly used in dust collection systems. These valves play a crucial role in controlling the flow of material, preventing air and pressure loss, and ensuring minimal product loss during processing. Selecting the right dust collector rotary valve is of utmost importance to maintain system efficiency, safety, and product integrity. In this article, we’ll delve into the different types of rotary valves and the key considerations for selecting the right one for your specific application.

Rotary Valve

Understanding Rotary Valves

Rotary valves are mechanical devices that facilitate the transition of materials from pressurized environments, such as dust collectors, to unpressurized points, like storage bins or drums. They come in various types, sizes, and materials to suit different industrial applications.

Types of Rotary Valves

  • Drop-Through Rotary Valve: In drop-through valves, product feeds into an inlet at the top, typically from a gravity-fed hopper, and exits through an outlet below. These valves are often used in applications where the primary function is to maintain air pressure differentials.
  • Convey Through (Blowing Seals) Rotary Valves: In convey-through valves, product enters the inlet and is directly fed into a pneumatic convey line connected to ports on the bottom sides of the housing end covers. These are more suitable for applications where height limitations exist, and the valve feeds a pneumatic conveyor directly.

Choosing the Right Rotary Valve

Selecting the right rotary valve depends on several critical factors:

1. Application Type:

  • Airlocks: Used in applications where maintaining pressure differentials is crucial. They allow material to flow between different pressure zones and are commonly found in cyclone and baghouse outlets.
  • Feeders: These valves control the rate at which material flows through the valve by metering the bulk powder material’s flow. They are suitable for low-pressure or gravity-fed applications, such as filling packaging machines.
  • Airlock Feeders: Combining the functions of airlocks and feeders, these valves are versatile and can be used for feeding pneumatic conveyors or moving products in and out of pressure and vacuum receivers.

2. Materials of Construction:

The choice of materials for the housing, rotor, drive, and accessories is crucial to match the requirements of your product and the operating environment. For example, some applications may require stainless steel for its resistance to chemicals, while others may need cast iron or chrome-plated cast iron for durability.

Adjustable rotors allow for tips to be adjusted to account for wear, and flex tip rotors are designed to maintain an airtight seal while preventing material jams. These are just a couple examples of the type of material and design options available.

Sanitary rotary airlock components

Sanitary rotary valve components

3. Ease of Cleaning:

For applications where frequent cleaning is necessary, choose a rotary valve designed for easy disassembly. Look for valves that facilitate access to product contact surfaces for cleaning. Hygienic applications should ensure the valve’s surface finish, seals, and construction meet regulatory standards.

Typically, open end rotors are easier to clean and maintain. These are often used with lighter or finer materials, to minimize the risk of material becoming trapped in the space between the endplates and rotor disc.

Rotary Airlock Removal

4. Explosion Protection:

In environments where explosion isolation is required, make sure the valve design complies with standards like NFPA to ensure safety in case of an explosion.

Explosion rated rotary valve

NFPA compliant rotary valve

5. Pressure:

The pressure of your conveying system is a key determinant of the required valve durability. Dilute phase pneumatic conveying systems typically operate between 4 and 8 PSI, while dense phase systems operate over 15 PSI. Valves for high-pressure or vacuum applications need to be designed to withstand the conditions, possibly requiring additional venting systems to prevent air leakage.

6. Temperature:

Consider the operating temperature, as extreme heat or cold can impact the choice of materials, rotor design, and airlock capabilities of the valve. Ensure the selected valve can withstand the temperature conditions of your application.

Selecting the right dust collector rotary valve is a critical decision for maintaining the efficiency and safety of your industrial processes.

By considering the type of valve, materials of construction, ease of cleaning, explosion protection, pressure, and temperature, you can make an informed choice that ensures optimal performance, minimal product loss, and a safe working environment. Collaborating with experts in this field such as Baghouse.com can be invaluable in making the right selection for your specific application.

Contact Us to Speak to One of Our Baghouse Experts.

For more baghouse related training and information, be sure to check out our Baghouse Online Training page.

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Your Guide to the Dust Collection Maintenance Checklist

Baghouse filter change

Routine maintenance is critical to ensure your dust collection system operates efficiently.

An essential first step in establishing an effective maintenance plan is the creation of a dust collector maintenance checklist. This checklist, tailored to your specific system, helps facility managers and maintenance staff perform periodic inspections as needed. In this article, we’ll explore the importance of a dust collector maintenance checklist, why you need one, and what to include in it.



Download Our FREE Maintenance Checklist PDF

Why Do You Need a Dust Collector Maintenance Checklist?

Maintenance Checklist Image

Your maintenance checklist should cover the entire system.

Baghouse system designs such as shaker, reverse-air, plenum-pulse-jet, and pulse-jet each require a checklist specific to their design. Regular inspections should be scheduled at various intervals, including daily, weekly, monthly, quarterly, semi-annually, or annually. By adhering to this routine, your dust collection system will continue to operate efficiently for years.

Neglecting regular dust collector maintenance can result in sluggish system performance, leading to costly repairs for both the dust collector and equipment affected by dust buildup. Repairs cause system downtime and production loss. Furthermore, an improperly functioning system can pose health risks to everyone in the vicinity, including workers, managers, owners, and visitors.

Signs That Your Dust Collector Needs Maintenance

Dirty filter bag

Your DP gage can indicate when filters are blinded and require changing.

General indicators that a dust collector requires maintenance include:

  • ✧ Abnormal drops or spikes in differential pressure, which may signal a filter failure
  • ✧ Visible particulate emissions could indicate a seal failure or a torn filter bag
  • ✧ Visual rust or holes in the system can indicate material erosion or environmental corrosion
  • ✧ Unusual sounds from your pulse valves may indicate an issue with diaphragms or your compressed air source

All of these problems are easily preventable with regular maintenance.



Download Our FREE Maintenance Checklist PDF

What Your Checklist Should Include

Below is a list of dust collector maintenance items and when to check them, depending on the system’s design:

Daily Checklist

  • ✅ Check differential pressure.
  • ✅ Observe exhaust stack (or check emissions monitoring system).
  • ✅ Operate damper valves.
  • ✅ Confirm that dust is being removed from system via dust discharge system.
  • ✅ Confirm cleaning system is operating correctly and set to the correct cleaning sequence.
  • ✅ Check compressed-air lines, including line filters and dryers.
  • ✅ Verify accuracy of temperature-indicating equipment.

 

Monthly Checklist

  • ✅ Inspect fans for corrosion and material buildup.
  • ✅ Check drive belts for wear and tension.

  • ✅ Inspect and lubricate appropriate items.

  • ✅ Spot check for bag leaks.
  • ✅ Check hoses and clamps.

  • ✅ Check accuracy of indicating equipment.
  • ✅ Inspect housing for corrosion.
  • ✅ Walk through system, listening for proper operation.
  • ✅ Check for unusual occurrences in process.
  • ✅ Observe control panel indicators.
  • ✅ Check compressed-air pressure.
  • ✅ Check differential pressure-indicating equipment for plugged lines.
  • ✅ Blow out any dust from differential pressure lines and verify gauges are in good condition and not fouled.

 

Quarterly Checklist

  • ✅ Inspect baffle plate for wear.
  • ✅ Inspect bags thoroughly.
  • ✅ Check duct for dust buildup.
  • ✅ Observe damper valves for proper seating.
  • ✅ Check gaskets on doors.
  • ✅ Inspect paint, insulation, etc.
  • ✅ Check screw conveyor for wear or abrasion.
  • ✅ Check that valves are opening and closing properly in bag-cleaning sequence.

 

Annual Checklist

  • ✅ Check fan belts.

  • ✅ Check welds.

  • ✅ Inspect hopper for wear (see full list in Appendix)
  • ✅ Evaluate filter performance (DP, emissions, failed bags, etc.) and schedule filter changeout as needed.
  • ✅ Ensure the plant has one full set of filters on hand for emergencies. IF possible/necessary, also stock one full set of cages or a small number of spare cages for maintenance use.



Download Our FREE Maintenance Checklist PDF

A well-structured plan that includes a dust collector maintenance checklist benefits operators significantly. It ensures that routine maintenance is systematically scheduled and performed, leading to efficient, long-lasting dust collection systems and lower cost of ownership overall. By following the checklist at specific intervals and marking off completed tasks, you can help preserve your dust collector’s efficiency and longevity and avoid major surprises.



Speak to One of Our Baghouse Experts

 

For more baghouse related training and information, be sure to check out our Baghouse Online Training page.

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Investing in Quality Filter Cages and Venturis for Long-Term Savings and Performance

 

Filter bag cages and venturis might not always steal the spotlight, but they are the heroes behind efficient and reliable dust collection systems. Neglecting the importance of these components can lead to a cascade of operational and compliance issues in your facility. At Baghouse.com, we understand the critical role played by filter bags, cages, and venturis in maintaining a top-notch dust collection system working perfectly. Let’s delve into why investing in quality components like these is a smart decision for your industrial operations.

The Role of Filter Cages

Filter cages might seem quite simple components, but they are essential for the proper functioning of your dust collection system. When filter bags don’t fit snugly onto the cages or when cages are not replaced when needed, it can compromise the entire system. Neglected filter bag cages are often the root cause of many operational problems in industrial settings.

Cage Types

The purpose of a baghouse cage is to provide support for filter bags to stay open during the dust collection cycle.

 

 

Common Cage Styles

Common baghouse cage styles include rolled top (top load baghouses) and split collar (bottom load baghouses). Options include galvanized steel, stainless steel, or epoxy coated. Cages can also have integral or drop-in venturi for improved bag cleaning.

One key feature is the precise fit between the filter bags and the cage, ensuring proper adhesion and a long service life. Quality filter cages are built to withstand cleaning cycles, bag changes, abrasive materials, high temperatures and many other environmental conditions they might encounter.

Additionally, filter cages should withstand the pressure exerted by the filter bag during the particulate collection cycle. They are also engineered to provide uniform support along the entire length of the filter cloth.

Regardless of design, each cage should adhere consistently to its specifications. This includes maintaining the correct diameter, total length, and other tolerances. The technologies we employ at Baghouse.com ensure your cages are made to spec, ensuring a proper fit between the filter bag and the cages and resulting in optimal cleaning performance. Our dust collector cages can be made to fit existing collectors from any baghouse manufacturers such as Astek, Gencor, Flexkleen, Mikropul, Wheelabrator, etc. We can also manufacture uncommon and specialized cage designs as required.

Why Do You Need A Venturi?

In some pulse jet collectors the venturi, or diffuser, is included in the original baghouse design. Its function is to accelerate compressed air at the center of the cage, optimizing the cleaning of bag filters. Venturis are made in a variety of materials, including aluminum, carbon steel, galvanized, and stainless steel.

Venturi Design

The venturi design changes the distribution of the cleaning pressure in the vicinity of the filter bag mouth, effectively reducing the energy consumption as well as reducing the dust emission concentration of the baghouse.

 

 

Why Choose Baghouse.com for Your Filter Cages and Venturis?

With millions of our cages installed and years of experience in the field, we confidently offer products that meet high standards of quality and performance. Our dedicated team efficiently manages projects from contract to design, construction, and delivery, anywhere in the world.

Investing in quality filter bag cages and venturi may not be the most exciting aspect of your dust collection system, but it’s undoubtedly one of the most critical. It ensures the longevity and effectiveness of your filtration system while reducing maintenance costs and noise in your facility. At Baghouse.com, we are committed to helping you achieve optimal filtration performance. Contact us today to find the perfect solution for your specific application. Your satisfaction and the efficiency of your operations are our top priorities.

Contact Us to Speak to One of Our Baghouse Experts.

For more baghouse related training and information, be sure to check out our Baghouse Online Training page.

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How Do Dust and Fume Collection Systems Work?

Dust and fume collection systems are indispensable in various industries, such as processes involving exhaust fumes from welding, sanding, grinding, spraying. Does your plant have any of these processes? If so, you must be interested in ensuring not only cleaner, safer workplaces but also compliance with environmental regulations. Among these systems, there’s one lesser-known hero: the ambient air collection system. In this article, we’ll explore how these systems function and their advantages.

Understanding Ambient Air Collection

At its core, an ambient air collection system is a type of dust and fume collection system. It operates by efficiently removing airborne particles from the atmosphere, making it an ideal choice for certain fabricating environments.

Cartridge collectors are commonly recommended for ambient systems due to their efficiency and compact design. These collectors use densely pleated filter cartridges with a high surface area, capable of handling substantial airflow. They excel at capturing even very fine fumes, up to MERV* 16, ensuring clean air. 

*MERV stands for “Minimum Efficiency Reporting Value.” It is a standardized measurement rating used to evaluate the efficiency of air filters in removing particles from the air as it passes through them. The MERV rating typically ranges from 1 to 16, with higher values indicating greater filtration efficiency. A higher MERV rating means the filter can capture smaller particles, including dust, fine fumes and other airborne contaminants.

The Difference: Ambient vs. Source-Capture

Ambient collection stands in contrast to source-capture systems, which rely on localized collection points like weld arms or fume hoods. Instead of capturing pollutants at specific spots, an ambient system continually exchanges all the air in a building or designated area.

Ambient systems offer several advantages over localized approaches:

  • Efficiency: Ambient systems are efficient, requiring less ductwork and power compared to localized systems with multiple capture points.
  • Cleaner Air: By removing dirty air from the entire workspace and returning it as clean, filtered air, ambient systems maintain overall air quality, even managing fugitive dust or fumes from portable sources.

    Modular Ambient Systems

    In variable production environments, a modular ambient dust collection system can be a smart choice. This approach involves using multiple smaller collectors instead of one large central system. It’s particularly beneficial for facilities with fluctuating production levels or plans for expansion.

    The experts at Baghouse.com can assist you in determining whether a modular or central ambient system is the right fit for your facility, considering factors like your current and future space usage and budget.

    Exploring Optional Functions in Fume Extraction Systems

    When considering fume extraction systems, you’ll encounter various optional features that can enhance their performance. These include:

    • Automatic Start-Stop Functionality: The automatic start-stop feature ensures that the fume extraction system operates precisely when needed. It activates as soon as the welding gun initiates an arc and includes a brief delay of usually 3 to 10 seconds after welding ceases. This thoughtful design not only conserves energy by preventing unnecessary blower operation but also contributes to lower maintenance costs and a quieter shop environment. Read more about Welding Safety Precautions.
    • Power Adjustment Capability: The power adjustment feature allows you to fine-tune the static pressure of your fume extraction system, aligning it with the specific parameters of your welding machine. Lowering the power not only reduces noise but also minimizes energy consumption. Additionally, it proves valuable in addressing rare occurrences like weld porosity or gas turbulence during welding. These events, while infrequent, are efficiently managed with this feature, ensuring your system’s readiness even when equipped with high-performance fume extraction equipment and welding guns.
    • Automatic Cleaning Functionality: Automatic cleaning is a smart feature that enables the system to self-clean the filter when a certain level of dust accumulates. This process can be based on a timer or triggered by monitoring the actual static pressure against the preset power of the unit. Importantly, this self-cleaning process occurs seamlessly while the welder continues to work.
    • Shunt Alarms: Shunt alarms provide clear signals, often through lights or gauges, indicating the need to replace the filter. This feature can be integrated into a fume extraction system equipped with automatic cleaning or used with systems featuring replaceable filters, ensuring you stay aware of filter maintenance requirements.

    How Baghouse.com Can Assist You

    At Baghouse.com, we specialize in dust and fume collection systems tailored to your unique needs. Whether you’re considering an ambient air system or another solution, our experts can guide you through the entire process. From system design to installation and maintenance, we’re here to ensure your workplace remains clean, safe, and compliant.

     

    Contact Us to Speak to One of Our Baghouse Experts.

    For more baghouse related training and information, be sure to check out our Baghouse Online Training page.

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Budgeting for Dust Collection Systems

In virtually every industry in the US, where air quality and worker well-being are crucial to the success of any business, industrial dust collection systems play an important role. These systems ensure smooth operations and employee safety. But, choosing the right components while staying on budget can be a complex puzzle. Let’s simplify this process, finding the sweet spot between wise investments and smart savings, all while building powerful and sustainable industrial dust collection systems.

5 Key Factors When Budgeting for Your Dust Collection System

1. Dust Properties: The Foundation for Filters and Collectors

Before diving into budget details, remember that dust properties set the stage. Understanding these properties guides filter media and collector choices, ensuring top-notch functionality.

Think About These Dust Properties:

  • Size: Are the dust particles small or large?
  • Density: Is the dust light, like wood dust, or heavy, like fine steel dust?
  • Chemistry: Does the dust have abrasive or corrosive qualities?
  • Temperature: Is your work area hot?
  • Moisture: Is there moisture or oil in the dust?

Knowing these dust properties helps you choose the perfect collector for your specific needs. Read more: Top 4 Reasons Why Baghouse Filters Fail.

2. Space Constraints: Finding the Right Size

Space limits define your collector’s size. These systems come in various heights, widths, and depths. Measuring the space and considering top-loading designs, which need overhead clearance for maintenance, are essential. It is also worth considering if you have an existing concrete pad, or if one must be poured to support the weight of your collector and fan. Watch the video: Intro Guide to Sizing and Design Your Baghouse.

3. Emissions Requirements: Navigating Legal Waters

Specific emissions regulations might apply based on your application. Emission limits differ by state and are expressed as efficiency percentages for cartridge collectors or emission limits (like lbs/hr or gr/dscf) for baghouses. These limits may impact the filter media required for your system, as well as the need for after-filters or additional equipemnt. Read more about regulatory requirements and compliance.

4. Volume: Sizing for Efficiency

Accurate airflow measurement is crucial for effective dust collection. Wrong volumes can disrupt production, air quality, and increase energy costs. 

Airflow is measured in cubic feet per minute (CFM), showing how much air moves per minute from a space.

Variables for Volume Calculation:

  • Dust collection method
  • Duct size
  • Workspace volume

Getting the airflow right ensures long-term collector efficiency. Want to know more? Read the following article: Why You Need to Properly Size Your Baghouse System.

5. Air-to-Cloth Ratio: Striking the Balance

The air-to-cloth ratio measures airflow efficiency through filter media. The right balance ensures optimal filtration.

Why Air-to-Cloth Ratio Matters:

  • Lower ratio for efficient dust removal
  • Higher ratio leads to increased energy costs and decreased suction

Calculating this ratio helps size the collector accurately, preventing pressure drops and maintaining air velocity. How to Select the Right Differential Pressure for My System?

Baghouse Styles: Picking Your System

The three most common baghouse styles are pulse jet, reverse air, and shaker style. Each has its advantages and disadvantages. The right choice depends on factors like space, maintenance needs, and filtration requirements.

  • Pulse Jet: Bags cleaned while operating, low maintenance, flexible sizing.
  • Reverse Air: Gentle cleaning, divided sections, custom bag design.
  • Shaker Style: Easy operation, low initial cost, shaker mechanism for cleaning.

Dust Collector Design for Easy Maintenance

Choosing design features that simplify maintenance is a smart long-term investment. Things to look for:

  • On-demand filter cleaning for efficiency and durability (not all control panels offer this option)
  • Modular design for expansion and accessibility
  • Quick access filter covers
  • Standard filter sizes for cost-effective replacements

Combustible Dust Safety Equipment

Safety is top priority, especially with combustible dust, and there are specific equipment requirements for systems handling combustible dust. To ensure your system is safe and compliant, take the following steps:

Tailored Dust Collection Design

Each dust collection application is unique, needing a comprehensive approach. Partnering with an experienced dust collection design and engineering companies like Baghouse.com, ensures efficient and effective systems designed for your facility.

In conclusion, budgeting for industrial dust collection systems goes beyond finances. It’s an investment in health, safety, and efficiency. By considering dust properties, space, emissions, volume, and air-to-cloth ratio, while prioritizing maintenance and safety, you can build a system that’s cost-effective and high-performing. Remember, a well-designed system not only saves money but also ensures a cleaner, safer, and more productive work environment.

 

Contact Us to Speak to One of Our Baghouse Experts.

 

For more baghouse related training and information, be sure to check out our Baghouse Online Training page.

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Top 8 Mistakes to Avoid When Designing a Dust Collection System

You’ve invested in high-efficiency equipment and tools for your industry, but is your dust extraction system working at peak efficiency or is there waste in your system – wasted time, efficiency, or cost? In this article, we’ll explore the most common mistakes when designing dust extraction and collection systems and how to avoid them. A well-designed system not only ensures a clean and safe workspace but also maximizes the lifespan of your equipment.

Mistake #1: Incorrect Duct Diameters

Mistake: Using duct diameters that are either too small or excessively large can lead to problems. Undersize diameter ducts can quickly become clogged, or wear prematurely due to excess dust velocity. Oversize ducts reduce airflow velocity, which may lead to dust settling and clogging up your system.

Solution: Calculate the appropriate duct diameter based on your system’s needs to maintain optimal performance. You should know the minimum carrying velocity of your dust type, and pick a duct size to match the required air flow (CFM) for your dust. If you need assistance sizing your system, please watch this video Watch the video: Intro Guide to Sizing and Design Your Baghouse.

dust carrying velocity chart

  • Start by understanding the required velocity for your dust and the CFM – then pick a duct diameter to match.

Mistake #2: Using Straight Tees

Mistake: Installing equal (straight) tees can lead to clogs, especially when dealing with soft and fine dust particles. These sharp corners cause turbulent flow, resulting in static pressure loss, and areas of low flow where dust will pile up and clog your system.

Duct union examples

The tee joint on the right is very inefficient; the 45-degree union fitting on the right is a much better design.

Solution: Opt for reducing tees, Y-pieces, or lateral tees to ensure smoother airflow and prevent clogging.

Mistake #3: Using Short Radius Elbows

Mistake: Using short radius elbows can disrupt airflow and greatly increase static pressure drop, similar to the tee joints mentioned above.

sharp 90 degree duct elbow

This sharp elbow will result in a large static pressure drop.

Solution: Use larger radius elbows (1.5D is standard) to maintain smooth airflow throughout your system and ensure you have adequate static pressure at your pickups.

Mistake #4: Accumulating Fittings Near Equipment

Mistake: Placing elements like dampers, bends, tees, and reducers too close to equipment can hinder proper airflow and reduce system efficiency. Remember, velocity is key in keeping dust airborne – disruptions in airflow slow down the dust, and your system must expend energy to speed it back up after a sharp elbow, etc. If that elbow is right next to your pickup, there is insufficient “runway” to gain sufficient velocity and laminar airflow – resulting in uneven or reduced suction at your pickups!

Solution: Maintain a minimum distance of 2.5 times the nominal duct diameter between airflow-disrupting elements and your pickups to ensure the system operates efficiently (even better is to remove or reduce these elements altogether!)

Mistake #5: Overuse of Flexible Ducting/Hoses

Mistake: Flex hose is very convenient and easy to install, and is often used to connect the last few feet of ductwork to your pickups. However, they are extremely “expensive” in terms of static pressure loss. Excessive use of flex hose can create unnecessary airflow resistance (up to 3X that of a standard duct), significantly reducing system efficiency.

Standard flex hose

Standard flex hose

Solution: Limit the use of flexible hoses to the absolute minimum required.

Mistake #6: Using Incorrect Duct Materials:

Mistake: Choosing the wrong material for your duct system (like plastic pipes instead of steel) can be dangerous and lead to explosion risks, very early wear and failure, and other issues.

Rolled lip steel duct

Rolled lip, clamp-together steel duct is standard for dust collection systems.

Solution: Prioritize safety by using metal duct with smooth inner walls to minimize resistance and ensure unhindered airflow. When in doubt, contact an expert to size and select ductwork for your dust collection system.

Mistake #7: Excessively Long Duct Runs

Mistake: Designing excessively long duct runs results in large static pressure drops across the system, meaning that the suction your fan generates isn’t available where it’s needed at the pickups. It’s all being lost in resistance across the long duct segments.

Solution: Install shorter main ducts with lateral discharge branches to individual machines for improved airflow and better static pressure where you need it.

Mistake #8: Incorrect Use of Gates and Dampers:

Manual cut-off gate

Manual cut-off gates are useful, but should be used in alignment with your system design.

Mistake: Incorrectly using cut-offs (also referred to as blast gates or dampers) in your system can lead to system imbalances (too much/too little air flow and velocity where you needed) and dust accumulation and blockages, as well as incorrect static pressure at your pickups.

Solution: If you plan to use manual gates to control flow (to turn specific equipment on/off, for example) ensure that is taken into account in the system design. Modifying your dust collection system then periodically “balancing” it to correct issues, although commonly practiced, is very inefficient and will result in sub-optimal efficiency. Generally blast gates should be fully open or fully closed. If balancing is required, contact an expert to help you with your system.

 

Contact Us to Speak to One of Our Baghouse Experts.

 

For more baghouse related training and information, be sure to check out our Baghouse Online Training page.

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