Home ProductsDFX™ Series – Dust Filtration ExcellenceDFX-FG™ – Fibreglass Dust Bags
DFX™ Series – Dust Filtration Excellence

DFX-FG™ – Fibreglass Dust Bags

DFX-FG™ Fibreglass Dust Filter Bags are engineered for extreme-temperature and chemically aggressive industrial environments. Manufactured from premium woven or needled fibreglass media, these bags provide durable, high-performance dust filtration in the harshest operating conditions.

Designed for continuous operation at up to 260 °C, DFX-FG™ bags can also withstand short-term thermal peaks of 280–300 °C without structural degradation. This makes them suitable for processes that demand long-term thermal stability, consistent filtration efficiency, and strong resistance to corrosive gas streams.

Technical Specifications
  • Material: Woven or needled fibreglass felt, typically supported with woven scrim
  • Operating Temperature: Continuous up to 260 °C; short-term excursions up to 280–300 °C
  • Weight: Typically 450–550 gsm (depending on construction and finish)
  • Micron Ratings: Generally 10–50 μm; finer control achievable with PTFE membrane lamination
  • Surface Treatments: PTFE, graphite, or silicone coatings to reduce flex fatigue, enhance chemical resistance, and improve cake release
  • Construction: Sewn with high-temperature resistant thread; double or triple-stitched seams
  • Seam Style: Standard double needle or reinforced seams for high-stress applications
  • Air Permeability: Approx. 8–12 m³/m²/min (pre-conditioning; varies with coating and membrane options)
  • Chemical Resistance: Excellent against acidic gases (SOx, NOx, HCl); limited tolerance to alkaline particulates
  • Hydrolysis Resistance: Limited; fibreglass is susceptible to moisture cycling unless surface-treated
  • Cage Compatibility: Designed for standard round or oval support cages
  • Compliance: Supplied for general industrial high-temperature service; ATEX/IECEx suitability must be confirmed at
    system level
  • Add-Ons: Anti-collapse rings, wear pads, top load guides, spark-resistant cuffs
  • Pleated Option: Available with fibreglass felt and ePTFE membrane for pulse-jet systems; provides
    2–3× surface area, reduced A/C ratio, and extended service life in retrofit applications
Applications
  • Cement & Lime Kilns: Main kiln, clinker cooler, and raw mill exhaust where extreme heat and abrasive particulates require durable media
  • Waste & Hazardous Incineration: Municipal, medical, and industrial incinerators handling corrosive flue gases and acidic vapours
  • Metals & Foundry Operations: Steel, aluminium, copper, and non-ferrous smelting and refining off-gas collection at elevated temperatures
  • Power Generation: Coal, biomass, and RDF boilers with high ash loading and sustained high temperatures unsuitable for synthetics
  • Chemical Processing: High-temperature reactors, dryers, and calcination units producing aggressive gas streams
  • Glass & Ceramics Production: Melting, curing, and kiln operations where dust is fine, abrasive, and heat-stable, and other demanding industrial applications