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Since 1998, Anping County Boli Hardware Wiremesh Products Factory has been a trusted manufacturer of industrial filtration solutions. Our Polyester Flange-Clamp Air Filter with 0.5μm Filtration Efficiency and 250Pa Pressure Drop is engineered to deliver reliable particle capture in demanding environments. With an annual export value of US$5–10 million and shipments to major ports like Tianjin, Qingdao, Shanghai, and Foshan, we serve global markets including North America, Europe, and Southeast Asia. This filter combines durable polyester media with a convenient flange-clamp design, ensuring easy installation and consistent performance.
The filter is designed for applications requiring high-efficiency removal of airborne particles down to 0.5 microns, such as dust, pollen, mold spores, and fine industrial particulates. Its 250Pa initial pressure drop balances airflow resistance with energy efficiency, making it suitable for HVAC systems, clean rooms, paint booths, and general ventilation. Below we detail the key features and specifications.
Key Features & Benefits
- High Filtration Efficiency: Captures 0.5μm particles with high reliability, improving indoor air quality and protecting downstream equipment.
- Low Pressure Drop (250Pa): Minimizes energy consumption for fans and blowers, reducing operational costs over time.
- Robust Polyester Media: Resistant to moisture, chemicals, and abrasion, ensuring long service life even in harsh conditions.
- Flange-Clamp Design: Allows quick and secure installation without special tools; compatible with standard ductwork and filter housings.
- Customizable Dimensions: Available in various sizes to fit your specific system requirements – contact us for custom orders.
- Optional Frame Material: Choose between metal or plastic frames based on application needs (e.g., corrosion resistance or weight savings).
- Thermal Stability: Operates effectively up to 80°C, suitable for heated air streams in industrial processes.
Technical Specifications
| Parameter | Value |
| Filter Media | Polyester non-woven fabric |
| Filtration Efficiency (μm) | 0.5 |
| Initial Pressure Drop | 250 Pa (at rated airflow) |
| Maximum Operating Temperature | 80°C |
| Frame Material (Option) | Galvanized steel, aluminum, or plastic |
| Flange Width | Standard 20 mm (customizable) |
| Available Sizes | From 300x300 mm to 1200x600 mm (others on request) |
| Weight | Varies with size; approx. 0.5–2 kg |
Our polyester flange-clamp air filter delivers consistent performance across a range of applications. In HVAC systems, it helps maintain clean air circulation while keeping energy costs low. In industrial settings – such as paint booths, woodworking shops, and pharmaceutical facilities – it captures fine particulates that could otherwise compromise product quality or worker health. The 0.5μm efficiency is particularly effective against bacteria, dust mite allergens, and many industrial fumes.
The flange-clamp mounting system simplifies replacement and maintenance. Unlike traditional bolt-on filters, our design allows you to slide the filter into place and secure it with clamps, reducing downtime. The polyester media is washable and reusable in many cases, offering an economical and environmentally friendly solution. For severe environments, we can provide media with antimicrobial treatment or higher temperature resistance.
Why Choose Boli Wiremesh?
With over 25 years of manufacturing experience, Anping County Boli Hardware Wiremesh Products Factory has built a reputation for quality and reliability. Our annual export value of US$5–10 million reflects the trust of customers in more than 20 countries across North America, South America, Europe, Asia, Africa, and Oceania. We ship from major Chinese ports (Tianjin, Qingdao, Shanghai, Foshan) with flexible logistics options. Our factory in Hengshui, Hebei, ensures strict quality control from raw material to finished product.
We are committed to customer satisfaction through customization, competitive pricing, and timely delivery. Whether you need a standard size or a unique configuration, our team will work with you to provide the right filter solution. Contact us today for a quotation or technical consultation – experience the Boli difference.
Frequently Asked Questions
Q1: What is the typical lifespan of this polyester air filter?
A: The lifespan depends on operating conditions and dust load. Under normal HVAC conditions, the filter can last 3–6 months before replacement. In heavy industrial environments, more frequent changes may be needed. The media is washable, extending its usable life.
Q2: Can this filter be used in high-temperature applications?
A: The standard version operates up to 80°C. For higher temperatures (up to 150°C), we can provide a modified polyester media or offer alternative materials. Please specify your temperature requirements when ordering.
Q3: What are the available frame options – metal or plastic?
A: We offer both. Metal frames (galvanized steel, aluminum) provide strength and are suitable for most industrial uses. Plastic frames (ABS, polypropylene) are lighter and resistant to corrosion, ideal for humid or chemical environments. The flange-clamp design is compatible with both.
Q4: Is the filter washable and reusable?
A: Yes, the polyester media can be washed with mild detergent and water, then air-dried. However, washing may slightly reduce filtration efficiency over time. For critical applications, we recommend replacing the filter after 2–3 washes.
Q5: What is the maximum airflow rate for this filter with a given size?
A: The pressure drop of 250 Pa is measured at the nominal airflow rate for each size. For example, a 600x600 mm filter typically handles 1000–1500 m³/h. We can provide detailed airflow curves for your specific size upon request.
Q6: Do you offer custom dimensions or special shapes?
A: Absolutely. As a manufacturer, we can customize length, width, thickness, flange width, and even non-rectangular shapes. Minimum order quantities may apply. Contact us with your drawing or specifications.
Q7: How does the flange-clamp design compare to traditional bag filters?
A: Flange-clamp filters are easier to install and replace, with a lower profile and less space requirement. They are ideal for tight ductwork. Bag filters offer higher dust-holding capacity but are bulkier. Our design is suitable for applications where space is limited and frequent changes are needed.
Q8: What is the packaging method for export?
A: Each filter is individually packed in a polybag, then packed in sturdy cartons or pallets, depending on quantity. We ensure proper protection during sea freight. For large orders, we can also use wooden crates.
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