Products Description
Need a high-strength intake filter to protect your high-pressure blower or air compressor?
Guanjiang's High-Pressure Fan Filter (Blower Intake Filter) is specifically designed for high-pressure blowers, air compressors, and similar equipment. Installed at the blower's air intake end, it delivers efficient air purification under high differential pressure conditions. Featuring a multi-layer filtration structure — primary G4/F5 filter cotton, intermediate H11/H13 high-efficiency filter paper, and optional activated carbon layer — it achieves 99.97% efficiency at 0.3μm. The reinforced aluminum alloy or stainless steel housing withstands 1.5-2.5 Bar pressure with airflow from 200-5000 m³/h.
Key Advantages
Effectively intercepts particles larger than 5μm, reducing impeller wear by up to 70%. Prevents dynamic imbalance caused by dust accumulation — extends blower service life.
Reinforced support frame prevents filter media collapse. Specialized sealing ensures zero leakage under 0.8-1.2 MPa pressure. Unique pressure reduction design lowers initial pressure drop by 15-20%.
Three-stage progressive filtration (G4/F5 + H11/H13) achieves 99.97% efficiency at 0.3μm. Optional activated carbon layer adsorbs oil vapors and odors.
Quick-release clamp structure enables replacement within 3 minutes. Visual pressure gauge indicates optimal replacement timing. Washable primary filter screen reduces operating costs.
Suitable for 150°C hot air systems — special media for elevated temperature applications.
Meet explosive environment requirements — prevents static discharge in hazardous areas.
NSF-certified materials available for food processing applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Housing Material | Reinforced aluminum alloy / Stainless steel |
| Pressure Rating | 1.5 ~ 2.5 Bar (0.15 ~ 0.25 MPa) |
| Airflow Capacity | 200 ~ 5000 m³/h |
| Filtration Efficiency | 99.97% @ 0.3μm (H13 HEPA) |
| Filter Stages | Primary (G4/F5) + HEPA (H11/H13) + Optional activated carbon |
| Operating Temperature | -20°C ~ 80°C (standard) / Up to 150°C (high-temp version) |
| Initial Pressure Drop | ≤ 150 Pa (at rated airflow) |
| Connection Type | Flange / Threaded / Quick-release clamp |
| Special Options | High-temperature / Anti-static / Food-grade / Cyclone pre-separator |
Selection Guide:
Standard filter (G4+F9+H13): General industrial applications — blower intake protection.
With activated carbon layer: For oil vapor and odor removal — food processing, cleanrooms.
High-temperature version (150°C): For hot air systems, drying processes, exhaust recovery.
Anti-static version: For explosive dust environments — ATEX-compliant configurations.
With cyclone pre-separator: For high-dust-load conditions — extends main filter life.
Applications
| Industry | Typical Applications |
|---|---|
| Environmental | Wastewater treatment blowers, exhaust gas treatment systems |
| Manufacturing | Pneumatic conveying systems, vacuum loading devices, central vacuum systems |
| Food Processing | Fermentation aeration systems, packaging machinery, ingredient conveying |
| Chemical Industry | Process gas boosting systems, reactor air supply, pneumatic conveying |
| Power Industry | Desulfurization and denitrification systems, boiler combustion air blowers |
Frequently Asked Questions
Q1: Why does a high-pressure blower need a specialized intake filter?
A: High-pressure blowers operate under significant pressure differentials. Standard filters can collapse under these conditions. Our filter features a reinforced support frame that prevents media collapse, ensuring reliable protection. Without proper filtration, dust causes impeller wear, dynamic imbalance, and premature blower failure.
Q2: What is the difference between the filter stages?
A: Primary (G4/F5): Captures large particles >5μm — washable, extends life of downstream stages. HEPA (H11/H13): Captures fine dust down to 0.3μm at 99.97% efficiency — protects blower from wear. Activated carbon (optional): Adsorbs oil vapors and odors — for food processing and cleanroom applications.
Q3: How often should the filter be replaced?
A: Replacement intervals depend on air quality and operating hours. The visual pressure gauge indicates when replacement is needed (typically when pressure drop increases by 2-3x initial value). Standard service life: 3-6 months for primary stage, 6-12 months for HEPA stage. The primary filter is washable for extended use.
Q4: Can this filter be used in explosive environments?
A: Yes. We offer anti-static versions that prevent static charge build-up — suitable for ATEX-classified areas with combustible dusts (wood, grain, chemical powders). All components are grounded and comply with hazardous locations requirements. Please specify your ATEX zone when ordering.
Q5: What is the maximum temperature rating?
A: Standard filters are rated for -20°C to 80°C. For high-temperature applications (e.g., drying processes, exhaust recovery), we offer high-temperature versions rated up to 150°C with special media and seals. Please specify your operating temperature when ordering.
Need a high-pressure intake filter for your blower or compressor?
Request a Quote → Download Datasheet (PDF)* Please provide your blower airflow (m³/h), pressure rating, and any special requirements (high-temp/anti-static/food-grade) for a fast, accurate quotation.
