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The Ranveth single/double flange high-efficiency filter is a panel filter that uses high-performance glass fibre media to remove fine particles at E11 or E12 efficiency. It is built for cleanrooms in semiconductor, pharmaceutical, hospital and HVAC applications, and its flange design ensures a tight seal with no air leakage. Buyers who need dependable particle control in critical spaces choose this filter for its balanced combination of efficiency, airflow and service life.
At the core of this filter is a high-flux ultra-fine glass fibre filter paper. This medium is selected for its ability to capture sub-micron particles while maintaining a low pressure drop. The glass fibres are formed into a dense, uniform mat that provides high efficiency without excessive resistance to airflow. The pleated structure increases the media area within a compact frame, allowing high airflow rates without compromising filtration performance.
The media is housed in an anodized aluminium alloy frame, which gives the filter strength and corrosion resistance while keeping weight low. The single or double flange design creates a positive seal against the mounting frame, preventing bypass leakage. This pairing of glass fibre media with a rigid flange frame is what drives the filter's efficiency, airflow characteristics and service life. The E11 grade offers sub-HEPA performance, while E12 meets HEPA standards, giving you options based on your contamination control requirements.
| Item | Detail |
|---|---|
| Product name | Single/Double Flange Medium & HEPA Filter |
| Filter class (EN 1822) | E11 (sub-HEPA) / E12 (HEPA) |
| Media | High-flux ultra-fine glass fibre filter paper |
| Frame material | Anodized aluminium alloy profile |
| Core applications | Pharmaceutical cleanrooms, electronics cleanrooms, hospital operating theatres, HVAC terminal filtration, FFU (fan filter units) |
| Standard sizes and rated airflow (W × H × D) | • 287 × 592 × 88 mm (E11 rated airflow 1000 m³/h; E12 rated airflow 500 m³/h) • 592 × 592 × 88 mm (E11 rated airflow 2000 m³/h; E12 rated airflow 1000 m³/h) |
| Customisation (OEM/ODM) | Supported: flange edge dimensions, non-standard airflow rates, special sizes. Our CNAS-accredited laboratory and ISO 9001 / IATF 16949 certifications support custom development. |
This filter is used in environments where airborne particle control is critical. In the pharmaceutical industry, it is installed in cleanrooms for aseptic processing and in hospital operating theatres to maintain sterile conditions. Electronics and semiconductor manufacturing rely on it for cleanrooms and FFU systems where micro-contamination can damage products. In HVAC systems, it serves as a terminal filter to protect indoor air quality. Other applications include food processing, energy and metal smelting, and data centres that require reliable particle filtration.
To tailor the filter to your system, please provide the following information:
With these details, our engineering team can recommend the appropriate media grade and frame design to match your performance requirements.
Ranveth is backed by a manufacturer with over 20 years of experience in filtration. Our in-house laboratory is CNAS-accredited and can issue test reports for filtration efficiency, dust holding capacity and pressure drop, so you can verify the media choices we propose. Our 50,000 m² production facility includes six cleanrooms totalling 20,000 m², where filters are assembled and packaged under controlled conditions. We hold IATF 16949 certification, awarded in 2024, and ISO 9001, ISO 14001 and ISO 45001 certifications, reflecting our commitment to quality and environmental management. We also support OEM/ODM projects: we have developed more than 1,000 filtration solutions, and our automated production lines can deliver millions of filters per month.
To discuss your requirements or request a sample, please contact us. Share your device or vehicle model, size or drawing, airflow or water flow, operating conditions and quantity, and we will respond with a tailored proposal.
This filter uses high-flux ultra-fine glass fibre filter paper as the core media, housed in an anodized aluminium alloy frame. The glass fibre media is selected for its high efficiency and low pressure drop, while the frame provides structural integrity and corrosion resistance.
The filter is available in E11 (sub-HEPA) and E12 (HEPA) grades according to EN 1822. E11 provides high efficiency for fine particles, while E12 offers even higher performance. The exact efficiency depends on the media grade you select.
Yes, we support customisation of flange edge dimensions, frame size and configuration. Our OEM/ODM service allows you to specify single or double flange, non-standard sizes and airflow rates to match your installation.
MOQ for standard sizes is typically 50–100 units. For customised specifications, MOQ is generally 100–300 units depending on complexity. We can discuss flexible arrangements for sample orders.
Standard products ship within 7–15 days. Custom orders typically require 25–35 days for production. Our automated lines and raw material stock help us meet urgent requirements.
Replacement interval depends on your operating conditions and pre-filtration. In typical cleanroom applications, filters last 3–5 years, with replacement recommended when pressure drop reaches twice the initial value. We can provide guidance based on your specific system.
Yes, we can provide samples for evaluation. Standard sizes may be offered free of charge with freight collect, while custom samples incur a tooling fee that is refundable on bulk orders. Each sample comes with a test report from our CNAS-accredited laboratory.
Please share your device or system model, required size or drawing, airflow rate, operating conditions and quantity. This allows us to recommend the right configuration and provide an accurate quote. Contact us to get started.