Engineered for high-velocity intake control in high-purity environments, this G4 grade primary bag filter (495x495x600mm) provides an exceptional pre-filtration barrier to safeguard sensitive cleanroom air handling units (AHU) and specialized industrial air ducts. this high-efficiency China primary filter combines deep-pocket dust retention with absolute structural integrity to protect downstream secondary medium-efficiency filters.
Our non-shedding synthetic media pocket filter utilizes a reinforced multi-pocket design with aerodynamic internal separators to solve surface blinding and pressure surge issues:
Progressive Density Synthetic Media: Traps heavy dust particles throughout the entire 600mm pocket depth without premature surface clogging.
Stabilized Static Pressure: Low initial resistance prevents sudden airflow drops in fresh air intake setups, significantly reducing blower energy consumption.
Minimized Downtime: Protects secondary medium-efficiency stages (F7–F9/HEPA), extending overall system life and preventing costly operational shutdowns.
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Where standard low-grade pocket bag filters suffer from mechanical deformation and air leakage under high velocity, our advanced frame construction ensures unyielding durability:
Deformation Resistance: Built with an anodized alloy frame and internal steel support ribs engineered to resist structural bending under continuous, high-velocity airflow.
Pressure-Resistant Ultrasonic Seams: The seams of each pocket are ultrasonically fused to prevent tearing—even under pressure spikes up to 120% of the nominal rating.
Zero-Bypass Air Seal: Features an integrated acetate ethyl seal gasket along the frame face, ensuring a 100% airtight fit in perimeter tracks and guaranteeing all incoming air passes directly through the filtration media.
| Parameter | Specification |
|---|---|
| Product Dimensions (WxHxD) | 495 x 495 x 600 mm |
| Efficiency Grade | G4 Grade (Primary Filter) |
| Filter Media Material | Non-Shedding Progressive Density Synthetic Media |
| Frame Material | Anodized Alloy Frame with Internal Steel Support Ribs |
| Sealing Gasket | Acetate Ethyl Seal Gasket |
| Seam Construction | Ultrasonically Fused Seams |
| Initial Resistance | 70 Pa |
| Operating Moisture Limit | Up to 80% RH |
Fully customizable specifications available. For detailed technical data, please 【visit the product page】 or 【reach out to our technical team】directly.
Cleanroom Air Intake: Functions as the mandatory first barrier in electronics, semiconductor, and medical facility air filtration system setups.
Industrial AHU Pre-Filtration: Matches large-scale primary air handling unit arrays requiring heavy dust holding capacity before secondary heating/cooling coils.
Precision Mechanical Manufacturing: Ensures clean, dust-free process air for delicate assembly zones and CNC processing workshops.
Factory Ventilation Systems: Delivers continuous air filter for factory intake purification in chemical plants and heavy machinery facilities.
Built for long-term operational economy, this high-capacity g4 air filter supports routine air-purging and light washing reconditioning cycles. Under standard cleanroom intake conditions, the 495x495x600mm pocket filter maintains a remarkably low initial resistance of 70Pa. Regular differential pressure monitoring ensures that maintenance personnel can time cleaning or replacement precisely before pressure drops impact air conditioning air filters fan motor efficiency.
Frequently Asked Questions About G4 Pocket Filters
Q: Can this 495x495x600mm pocket filter be used in high-moisture cleanrooms?
A: Yes. The non-shedding synthetic media, anodized alloy frame, and internal steel support ribs are specifically engineered for high moisture resistance. This 495x495x600mm industrial pocket air filter operates reliably in relative humidity levels up to 80% RH without media degradation or mold growth.
Q: What is the primary benefit of using a G4 grade pocket filter in cleanrooms?
A: The main advantage is its exceptional deep-pocket dust retention paired with extreme structural integrity. By capturing heavy particulate loads early in the air handling process, this G4 primary filter stabilizes system airflow and drastically extends the service life of expensive secondary and final-stage HEPA filters.
Q: Is this industrial bag filter compatible with standard AHU (Air Handling Unit) tracks?
A: Absolutely. Designed to standardized international dimensions (495x495x600mm), this primary pocket filter seamlessly integrates into standard cleanroom AHU holding frames, HVAC filter racks, and industrial intake duct channels.
Q: How do this filter's design and seal prevent air bypass leakage?
A: Zero bypass is guaranteed through a two-step structural design:
An integrated acetate ethyl seal gasket along the frame face creates an airtight perimeter lock against track walls.
Ultrasonically fused pocket seams prevent media tearing even under severe pressure spikes (up to 120% of nominal rating).
Q: How do I know when to replace the 495x495x600mm pocket filter?
A: We recommend monitoring the differential pressure across your cleanroom intake system using a manometer. When the static pressure drop increases significantly above the low initial resistance of 70 Pa (typically reaching the recommended final resistance of 200–250 Pa), the filter should be replaced to ensure optimal energy efficiency and air quality.
