In heavy-duty industrial HVAC systems, air compressor intakes, and gas turbine enclosures, operational downtime caused by premature clogging of filter media remains a major cost driver for plant engineers. Standard synthetic media often suffers from mechanical degradation, rapid pressure drop spikes, and low dust storage volume under continuous turbulent airflow.
Our ASHRAE F8 fiberglass filter media (F6-F9 glass fiber filter paper) directly solves these operational challenges. Utilizing micro-glass fibers, this 70gsm fiberglass filter roll delivers:
Exceptional Structural Stability: Uniform fiber distribution prevents pleat collapse under high air volume conditions.
Extended Service Intervals: Significantly lowers total cost of ownership (TCO) for plant engineers.
Reduced Energy Costs: Preserves lower system operating fan horsepower across complex industrial applications.
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Manufactured via advanced wet-laid technology, this 0.33mm medium efficiency filter media features a progressive density fiber structure that traps coarse particles on the surface while retaining ultra-fine contaminants deep within the fiber matrix.
Engineered as a flame retardant fiberglass media, it exhibits superior thermal endurance and dimensional stability under severe temperature fluctuations. As a trusted fiberglass filter media factory supplier, we deliver this ISO16890 compliant filter paper with uniform mass distribution (70 ± 4 g/m²) to ensure zero bypass risks.
Filtration Efficiency: Minimum efficiency of ≥ 90% for 0.4 μm particles (ASHRAE Grade).
Airflow Efficiency: Low initial resistance of ≤ 60 Pa at 5.3 cm/s face velocity for maximum energy savings.
Mechanical Strength: Tensile strength MD of 0.9 – 1.15 KN/m and stiffness ≥ 850 mg, ensuring seamless mechanical pleating without micro-fractures.
Media Thickness & Mass: 0.33mm thickness with 70 ± 4 g/m² uniform basis weight.
| Technical Parameter | Specification Value | Test Standard
|
| Filter Grade | ASHRAE F6 – F9 (ePM10 50% – ePM1 85%) | EN779 / ISO 16890 |
| Filtration Efficiency | 60% – 95% | @ 0.4 μm (Face Velocity 5.3 cm/s) |
| Initial Resistance | ≤ 60 Pa | @ 5.3 cm/s Face Velocity |
| Basic Weight | 70 ± 4 g/m² | ISO 536 |
| Thickness | 0.33 ± 0.02 mm | ISO 534 (@ 20 kPa) |
| Tensile Strength MD | 0.9 – 1.15 KN/m | ISO 1924-2 |
| Stiffness Rating | ≥ 850 mg | Taber Stiffness Tester |
| Dust Holding Capacity | ≥ 110 g/m² | Final Pressure Drop 450 Pa |
| Temperature Endurance | ≤ 250 °C (Continuous) | DIN 53438 Flammability Class F1 |
Fully customizable specifications available. For detailed technical data, please 【visit the product page】 or 【reach out to our technical team】directly.
This industrial HVAC ventilation media is specifically optimized for high-volume air handling units (AHU), commercial rooftop units, and primary intake systems across diverse manufacturing plants. It serves as the primary filtration barrier for gas turbine air intake filtration equipment, shielding rotating turbine blades from abrasive airborne particulates, dust, and corrosive mist. Additionally, it is widely converted into deep-pleat and mini-pleat elements for air compressor inlet filter paper assemblies, protecting heavy-duty screw compressors and blowers from internal fouling. For large-scale manufacturing facilities, auto spray booths, and commercial ventilation networks, our heavy duty AHU air filter media protects secondary high-efficiency filters downstream. Whether deployed in demanding industrial intake filtration system designs or standard building HVAC networks, this media provides continuous, energy-efficient operational support.
Proper maintenance scheduling of this OEM medium efficiency filter roll prevents system over-pressurization and reduces overall energy consumption across HVAC and turbine systems.
Light-Load Operating Conditions: In standard commercial ventilation and clean ambient intake environments, inspect baseline pressure differential bi-monthly. The recommended replacement threshold is reached when initial resistance increases by 150 – 200 Pa over baseline, typically corresponding to a service life of 8,000 – 12,000 hours.
Heavy-Duty / High-Dust Industrial Conditions: In mining, heavy manufacturing, desert gas turbine intakes, or continuous process air compressor applications, monitor pressure gauges weekly. Media replacement should occur when differential pressure reaches 250 Pa or after 3,000 – 5,000 hours of continuous operation to prevent compressor surge or reduced turbine airflow capacity.
Frequently Asked Questions
Q: What makes wet laid glass fiber paper superior to synthetic media for gas turbine intakes?
A: Our wet laid glass fiber paper maintains high structural rigidity, temperature stability, and a lower pressure drop curve compared to synthetic media. In gas turbine air intake filtration, it eliminates pleat deformation under high airflow velocity, ensuring stable filtration efficiency without media shedding or bursting.
Q: Can this 70gsm fiberglass filter roll be processed on automated mini-pleat machinery?
A: Yes, as an established bulk HVAC filter paper manufacturer, we engineer our 70gsm fiberglass filter roll with a high tensile strength MD (0.9 – 1.15 KN/m) and stiffness ≥ 850 mg. This allows smooth high-speed scoring, pleating, and gluing without tears or edge cracking on all standard automated pleating lines.
Q: Is custom slit width available for custom fiberglass filter paper rolls?
A: Absolutely. As an OEM medium efficiency filter roll factory, we supply custom fiberglass filter paper rolls slit precisely to your specified width requirements, ranging from master jumbo rolls down to narrow widths for specific filter element manufacturing.
Q: How does low air resistance filter media contribute to plant energy savings?
A: Fans consume significantly more energy when pushing air through restrictive media. Utilizing low air resistance filter media (≤ 60 Pa initial resistance) allows HVAC systems and intake blowers to maintain required CFM airflow with lower motor wattage, delivering significant energy cost reductions over the lifespan of the filter.
Q: What certification standards does this ASHRAE F8 fiberglass filter media meet?
A: Our ASHRAE F8 fiberglass filter media is tested according to EN779 (F8 classification) and ISO16890 protocols. It functions as an ISO16890 compliant filter paper with verified efficiency against 0.4 μm particulates, ensuring full compliance for international project tenders.
