Overview

The Modular Baghouse (MB) provides reliable service with easy maintenance. Computer designed inlets and deflector plates, coupled with maximized bag spacing, result in opt​imal airflow with minimal abrasion. Advanced valves, providing 50% more air, result in a more efficient operation. 

The MB advantage is found in the breakthrough technology of our filter bags: Dura-Life™ filter bags and Ultra-Web® pleated bag filters. Dura-Life filter bags provide twice the life over standard 540 g/m² / 16 oz/yd² polyester bags. Our pleated bag options with Ultra-Web SB media, provide long filter life.


Features

  • Square models help minimize ducting and accessory costs 
  • Dura-Life ”Twice the Life” Bag Filters 
  • Ultra-Web SB Pleated Bag option
  • Clean air bag access for easy bag service
  • Welded design increases durability
  • Integral fan option reduces space requirements
  • Tool-free installation of bag filters and cages 

Baghouse Operations That Work

The Modular Baghouse collector comes in two models: the MBT allows walk-on, top access to the bags (clean-air side of the collector). This configuration is ideal for indoor or tight budget applications. The MBW offers a walk-in clean-air plenum, so bags can be replaced in any kind of outdoor weather.

The Modular Baghouse has a hopper inlet that was designed with the help of computer airflow analysis to provide maximum performance. When dusty air enters the inlet, it hits a deflector plate at the end of the inlet, which causes heavier particles to drop directly into the hopper. This design reduces the amount of dust that comes in contact with the bags, thus reducing bag abrasion and providing reduced pressure drop and long bag life.


 

Dumpster Discharge for Heavy Dust Loading

For applications with heavy dust loading, the MB has an easy-to-use Dumpster Discharge. This option provides either a 1.5 or 2.3 cubic meter / two or three cubic yard self-dumping dumpster that can be hauled away with the use of a forklift. The dumpster comes with a lid that seals the system so that no rotary valve is required. The lid is lifted off of the dumpster via a mechanical lift, which is included with the package. 

MBT Normal Operation Illustration MBT Normal Operation Illustration

 

Two Breakthrough Filter Options for Your Modular Baghouse

 

Dura-Life Filter Bags Provide Twice the Life Over Standard 540 g/m2 / 16 oz/yd2 Polyester Bags

Traditional 540 g/m2 / 16 oz/yd2 polyester bags are produced via a needling process that creates larger pores where dust can embed into the fabric, inhibiting cleaning and reducing bag life. Dura-Life bags are engineered with a unique hydroentanglement process that uses water jets to blend the fibers. This process creates a felt with smaller pores which keeps more dust on the surface of the filter resulting in efficient pulse cleaning and long bag life.

Dura-Life Filter Bag Benefits:

  • Supports energy savings due to low pressure drop
  • Helps reduce replacement bag and maintenance costs due to long bag life 

 

Pleated Bags with Ultra-Web SB Media Provide Long Life and Reduced Emissions

For more than two decades, Donaldson has advanced the proven Ultra-Web fine fiber technology. Ultra-Web filters provides a very fine, continuous fiber of 0.2 - 0.3 micron in diameter to form a web-like net that traps dust on the surface of the media. Combining Ultra-Web technology with a sturdy spunbond polyester substrate, Ultra-Web SB pleated bag filters long filter life, that can help reduce downtime and emissions. 

Ultra-Web SB Pleated Bag Benefits:

  • Reduced collector size and first cost
  • Extended filter life
  • Supports energy savings due to low pressure drop
  • Helps reduce maintenance and downtime costs 

Collector Design Standard Optional
Clean Air Plenum with Top-Bag Removal  
Heavy-Duty Ribbed Housing Construction  
All-Welded, Carbon Steel Design - 12 Gauge Minimum  
Heavy-Duty 3/16” Tubesheet  
Filter Cleaning System  
Service Railing with Kickplate (MBT)  
Bottom Bag Removal  
High Temperature Construction  
Stainless Steel Construction  
Direct Drive Fans  
Power Pack Transition for TBI Fans  
Chamber and Exhaust Silencers  
Damper Pack  
Service Platform (MBW)  
Ladders and Platform Assemblies  



Bags & Cages Standard Optional
Dura-Life Twice the Life Polyester Felt Snap-In Bags  
Galvanized Bag Cages  
Ultra-Web SB Pleated Bags  
Variety of Bag Media Options  
Articulated Cages  

Paint System Standard Optional
Prime Coated Interior  
Textured Multi-Coat Paint Finish with 2,000-Hour Salt Spray Performance  
Premium Duty Paint  
Custom Colors  

Hopper Design Standard Optional
60° Pyramid Hoppers  
Inlets with Deflector  
Trough Hopper with Multiple or Single Inlets  
Hopper Access Covers  
Inlet Transitions  
Pyramid Hopper Cover with Flood Valve  



Hopper Discharge Standard Optional
Slide Gate Pack  
208.2 L (255-gal) Drum Pack  
Dumpster Discharge with Dumpster  
AN Rotary Valves and Transitions  



Support Structure Standard Optional
1,219.2 mm / 48 in. Clearance Leg Pack (pyramid hoppers)  
Stub Legs (trough hopper)  
1,828.8 mm / 72 in. Clearance Leg Pack  

Electrical Controls, Gauges and Enclosures Standard Optional
Solenoid Valves in NEMA 4 Enclosure  
Magnehelic* Gauge  
Control Timer in NEMA 4 Enclosure  
Solenoid Enclosure in NEMA 7 or 9  
Photohelic* Gauge  
Delta P or Delta P Plus Control Panel  

Safety Features Standard Optional
Sprinkler Access Ports  
Sprinkler Pack Assembly (wet or dry)  
Explosion Vents  
Ladder Safety System  

Warranty Standard Optional
10-Year Warranty  

Please contact your local Donaldson Representative for specific availability in your region. All products, specifications, and availability are subject to change without notice.

 

Frequently Asked Questions

Q. What Is a Hydro Entanglement Process?

A. Instead of using needles to mechanically entangle and compress polyester fibers into a felt material, the hydro-entanglement process uses high-pressure water jets to achieve the same effect. This method produces a more uniform material with improved filtration performance.

Q. How Are Dura-Life Bags Different from Standard Polyester Bags?

A. Dura-Life bags are made from polyester material that is created through a hydro entanglement process instead of a needle punch process. The hydro entanglement process creates a more consistent and uniform filter material. The material is comparable in thickness to standard polyester but weighs about 1/3 less. The fibers are smaller and the hydro entanglement process creates a loftier and lighter weight fabric that filters more effectively.