Since 1959, Flex-Kleen has been a global leader in industrial process dust control, product recovery, nuisance dust collection, and air pollution control. Now part of CECO Environmental, Flex-Kleen has more than 100,000 dust collectors ranging in size from 30 CFM to 100,000 CFM installed and operating in facilities worldwide — many still in service after 40 or more years. That record of durability and reliability is the foundation of everything Flex-Kleen builds.

Flex-Kleen systems are engineered to handle the most demanding industrial dust collection challenges: combustible and explosive dusts, corrosive air streams, hygroscopic materials, high-temperature applications, sanitary requirements, and extreme environments. Every system is custom-designed using a wide range of construction materials including carbon steel, stainless steel, and exotic alloys — tailored to your specific application, height limitations, and size restrictions. And now, the new iSeries cartridge dust collector brings a plug-and-play option to facilities that need fast deployment without sacrificing performance, safety compliance, or durability.

Trotter Equipment has partnered with Flex-Kleen for over 40 years to deliver dust collection systems that keep operations safe, clean, and compliant across Ohio, Indiana, Kentucky, and West Virginia. From initial system design and equipment selection through startup, troubleshooting, and ongoing parts support, our combined expertise ensures reliable performance in even the most demanding environments.

Flex-Kleen Equipment

Flex-Kleen manufactures two core product families — pulse-jet baghouse dust collectors for custom industrial applications, and the new iSeries cartridge dust collector for plug-and-play deployment — supported by a complete line of replacement parts and filtration media for all equipment in the field.

Pulse-Jet Baghouse Dust Collectors

Flex-Kleen’s original and most widely installed product line. Pulse-jet baghouses use short bursts of compressed air to clean filter bags on-line — without interrupting airflow — delivering continuous, high-efficiency dust collection for product recovery, large bin venting, and general industrial nuisance dust control. Every unit is custom-designed and configured for optimal performance in your specific application, with no two systems identical.

Each Flex-Kleen pulse-jet dust collector is built to last. Construction is welded 12-gauge hot rolled steel with flanged air inlet, outlet, and dust discharge connections. Available in a wide range of sizes, housing configurations, and filter bag counts to match any airflow requirement from small point-of-source collectors to large centralized baghouse systems.

• Low Total Cost of Ownership — Minimal maintenance due to no internal moving parts in the cleaning system. Energy-efficient Smart Timer™ reduces compressed air consumption and energy costs by cleaning only when needed rather than on a fixed interval
• Easy Installation — Completely assembled units or welded sections for fast field installation. Quick-mounting air headers arrive pre-wired and pre-piped, reducing installation time and contractor labor
• Flexible Bag Removal Options — Models available with bottom bag removal for standard applications or patented Trap10™ top bag removal for applications where bottom access is restricted or where maintenance personnel prefer to work from above
• Quick Bag Replacement Design — Snap-in bag and cage design minimizes filter replacement time and downtime
• Heavy-Duty Construction — Heavy-gauge NORYL™ venturis and heavy-duty smooth galvanized cages for long service life. 20-inch diameter top access ports to the clean air plenum for inspection and maintenance
• NEMA 4 Weathertight Electricals — Suitable for outdoor installation without additional enclosures
• Weatherproof Walk-In Clean Air Plenum — Available on top bag removal models for safe, protected access to the clean air side during bag inspection and replacement
• Structural Support — Corner saddle supports through 96-bag size; six-inch girth channel for continuous support on larger units
• NFPA-Compliant Safety Options — Explosion venting, isolation valves, abort gates, and suppression systems for combustible dust applications in compliance with NFPA 68 and NFPA 69
• Custom Materials of Construction — Carbon steel, stainless steel (304 and 316L), and exotic alloys for corrosive, high-temperature, and sanitary applications

Pulse-jet baghouse applications include: chemical processing, pharmaceuticals, mining and minerals, coal and fly ash handling, kilns, boilers, dryers, mixers, food and beverage ingredient handling, plastics compounding, metal powders, woodworking, and general industrial dust collection.

iSeries Cartridge Dust Collector — Plug-and-Play

The newest addition to the Flex-Kleen product line and a significant innovation in industrial dust collection. The iSeries is a heavy-duty, NFPA 68 compliant, KST 400-rated cartridge dust collector designed as a true plug-and-play solution — factory-assembled, pre-wired, and ready for connection to your existing ductwork and compressed air supply. The iSeries delivers the same performance standards as Flex-Kleen’s custom solutions in a standardized, faster-to-deploy package that reduces installation time, engineering cost, and startup complexity.

• NFPA 68 Compliant & KST 400 ST3 Rated — Built-in explosion vent panel enclosure rated for the most demanding combustible dust classifications. Low-noise, high-safety housing meets NFPA 68 standards to safely contain and vent combustible dust events without requiring external explosion venting infrastructure
• Horizontal Filter Layout — Tool-free, ground-level cartridge access for safer, faster filter changes without reaching into vertical housings or using ladders. Significantly reduces maintenance time and improves technician safety
• High-Flow Pleated Cartridge Filters — Low pressure drop design extends filter life, reduces energy consumption, and maintains consistent airflow performance across demanding duty cycles
• Advanced Pulse Cleaning — Reverse jet pulse cleaning system maximizes filter life and uptime, with consistent cleaning performance across all operating conditions
• IoT Monitoring Ready — Factory-integrated connectivity for real-time differential pressure tracking and proactive system management. Enables remote monitoring and predictive maintenance to prevent unplanned downtime
• Modular Configurations — Available in 2, 4, 6, or 8-filter cartridge layouts to precisely match your airflow and footprint requirements. Scale up as your needs grow
• Compact Footprint — Maximize space efficiency in tight installations without compromising collection performance or filter area
• Durable RAL 9007 Finish — Long-lasting aluminum gray powder coating resists corrosion and UV degradation for outdoor and harsh indoor environments
• Reinforced Construction — Structural stiffening provides stability under pressure and supports safe explosion venting per NFPA 68 requirements

iSeries optional features include: flameless explosion vents, deflector plates, and a wide range of filtration media — spun bond polyester, anti-static spun bond polyester, nanoweb, and PTFE-coated membrane media — to match any dust type and collection efficiency requirement.

iSeries applications include: chemicals, metal processing, woodworking, mining and minerals, plastics, pharmaceuticals, food and beverage, and electronics manufacturing.

Filtration Media & Filter Types

Flex-Kleen offers a complete range of filtration media to match every dust type, temperature, chemical exposure, and collection efficiency requirement:

• Standard Woven Polyester Bags — The most widely used filter media for general industrial applications. Available in multiple weave patterns and weights
• Spun Bond Polyester — Smooth surface for easy pulse cleaning and improved cake release on sticky or hygroscopic dusts
• Anti-Static Spun Bond Polyester — Dissipates static charge buildup for combustible dust applications where electrostatic ignition is a concern
• PTFE-Coated Membrane Media — Surface filtration for submicron dust collection efficiency. Provides exceptional cake release and maintains low pressure drop with hygroscopic, sticky, or fine dusts that would blind conventional depth-loading media
• Nanoweb Media — Nanofiber surface filtration technology for very fine and submicron particle capture with low pressure drop
• High-Temperature Media — Aramid (Nomex), fiberglass, and P84 media for applications up to 500°F continuous
• Chemical-Resistant Media — PTFE (Teflon) felt and other specialty materials for corrosive gas streams including acids, alkalis, and solvents
• Pleated Cartridge Filters — High surface area in a compact cartridge format. Available in standard polyester, anti-static, PTFE-coated, and nanoweb media

Industries Served

Flex-Kleen dust collectors are found in facilities across virtually every manufacturing and processing sector that generates airborne dust, fume, or particulate:

• Chemicals & Specialty Chemicals — Fine chemical powders, pigments, dyes, resins, catalysts, carbon black, sulfur, and reactive or hazardous dust streams requiring sealed, NFPA-compliant collection systems
• Food & Beverage — Flour, sugar, starch, salt, cocoa, spice, dairy powder, grain dust, and other food-grade bulk ingredient dust requiring USDA-acceptable or food-grade stainless construction and sanitary filter media
• Pharmaceuticals & Nutraceuticals — API dust, excipient powders, vitamin and supplement dust requiring high-efficiency HEPA or PTFE membrane filtration with sanitary construction and contained filter changeout for operator protection
• Plastics & Polymers — Plastic pellet fines, polymer powder, PVC dust, compounding dust, and regrind fines in plastics manufacturing and compounding facilities
• Mining & Minerals — Silica, lime, calcium carbonate, potash, coal, fly ash, alumina, and other mineral dusts requiring heavy-duty abrasion-resistant construction and NFPA-compliant combustible dust systems where applicable
• Building Products & Cement — Cement, fly ash, gypsum, lime, kiln dust, and aggregate dust in building materials manufacturing and concrete production
• Agricultural & Grain Processing — Grain elevator dust, feed mill dust, flour mill exhaust, and other agricultural combustible dust applications requiring NFPA 61 and NFPA 68 compliance
• Metal Processing & Fabrication — Metal grinding dust, welding fume, thermal spray, and abrasive blasting particulate capture
• Woodworking & Forest Products — Sawdust, sander dust, and wood chip fines in furniture, cabinet, millwork, and wood products manufacturing
• Recycling — Post-consumer material dust in paper, plastic, rubber, and metal recycling facilities
• Fertilizer — Granular and powder fertilizer dust including urea, ammonium nitrate, and blended NPK products requiring NFPA-compliant explosion protection
• Electronics Manufacturing — Airborne particulate control for cleanroom and precision manufacturing environments

Services

• Engineering / Design — Complete dust collection system design including equipment sizing, filter media selection, NFPA compliance review, duct system layout, and fan and motor selection matched to your application and regulatory requirements
• Combustible Dust Hazard Analysis — NFPA 68 and NFPA 69 compliance review and system design for facilities handling combustible or explosive dusts — identifying ignition sources, explosion venting requirements, isolation needs, and suppression options
• System Retrofits & Upgrades — Upgrading existing dust collectors with new filter media, pulse cleaning systems, controls, and explosion protection equipment to improve performance and bring systems into current code compliance
• Troubleshooting — Diagnosing and resolving dust collector performance problems including high pressure drop, excessive emissions, filter blinding, and cleaning system failures
• Startup & Commissioning — On-site startup assistance to verify correct installation, system balance, and filter conditioning before full production operation

PARTS

Flex-Kleen provides high-quality replacement parts compatible with all Flex-Kleen filtration equipment as well as competitive dust collector brands. Stocked inventory for fast order fulfillment and minimal downtime.

• Spare Parts
• Sub-Assembly Replacements
• Replacement Filter Bags — All Media Types & Sizes
• Pleated Cartridge Filters
• Filter Cages & Support Frames
• Pulse Valves & Diaphragm Kits
• Solenoid Valves & Pilot Valves
• Differential Pressure Gauges & Controls
• Rotary Airlock Valves for Dust Discharge
• Screw Conveyors for Hopper Discharge
• Smart Timer™ Control Boards
• Venturis & Blow Tubes