Rigid Filter (Plastic Frame)
Rigid Filter (Plastic Frame) is a high-capacity compact air filter designed for fine-particle capture in HVAC systems. It can be used for second- or final-stage air filtration and as a prefilter to protect HEPA filters.
Glass-fibre filter media, hot-melt separators, two-component polyurethane sealing and a polystyrene plastic frame create a lightweight yet rigid construction. Models with a 130 mm depth are available for nominal airflow rates from 750 to 3,000 m³/h. Therefore, they can be used in various air handling and ventilation applications.
130 mm Depth
Polystyrene Frame
What Is a Rigid Filter with Plastic Frame?
A rigid filter with plastic frame is a fine-particle filter manufactured by fixing densely pleated glass-fibre media inside a polystyrene frame. The rigid outer construction helps the filter media maintain its shape during installation and operation.
Hot-melt separators maintain the spacing between the filter-media pleats. As a result, airflow passages remain open and the available filtration surface can be used effectively. The joint between the filter media and frame is sealed with a two-component polyurethane compound.
The 130 mm depth and high-capacity filter geometry provide filtration areas from 3.2 to 13 m² within compact external dimensions. Moreover, the large filter surface can support lower initial pressure drop and high dust-holding capacity at suitable airflow rates.
Filter Selection and Application Process
Technical Specifications
| Filter standard | ISO 16890 | Filter classes | ISO ePM1, ISO ePM2.5 and ISO ePM10 |
| Filter media | Glass fibre | Frame | Polystyrene plastic |
| Standard depth | 130 mm | Capacity design | High capacity |
| Maximum operating temperature | 80°C | Surface protection | Optional |
| Sealing compound | Two-component polyurethane | Separator | Hot-melt adhesive |
| Flange | 25 mm | Gasket options | Poured gasket, EPDM or no gasket |
| Recommended final pressure drop | According to the EN 13053 approach, whichever is lower: initial ΔP + 100 Pa or initial ΔP × 3 | ||
Product Coding System
| Product Type | Filter Class | Frame | Capacity | Flange | Dimensions | Surface Protection | Gasket |
|---|---|---|---|---|---|---|---|
| AR Rigid Filter |
M6 F7 F8 F9 |
P: Plastic | M: Standard capacity H: High capacity |
25: 25 mm | Width × Height × Depth Example: 592 × 592 × 130 mm |
FW: None FC: Clean-air side FD: Dirty-air side FB: Both sides |
W: None P: Poured gasket PP: Double-sided poured gasket E: EPDM EE: Double-sided EPDM |
Rigid Filter (Plastic Frame) Models
| Filter Model | EN 779 (withdrawn) |
ISO 16890 | Dimensions W × H × D (mm) |
Filtration Area (m²) |
Nominal Airflow (m³/h) |
Initial Pressure Drop (Pa) |
|---|---|---|---|---|---|---|
| AR-M6-P-H-25-287-287-130-FW-W | M6 | ePM10 75% | 287 × 287 × 130 | 3.2 | 750 | 90 |
| AR-M6-P-H-25-287-592-130-FW-W | M6 | ePM10 75% | 287 × 592 × 130 | 6.5 | 1,500 | 90 |
| AR-M6-P-H-25-490-592-130-FW-W | M6 | ePM10 75% | 490 × 592 × 130 | 10.7 | 2,500 | 90 |
| AR-M6-P-H-25-592-592-130-FW-W | M6 | ePM10 75% | 592 × 592 × 130 | 13 | 3,000 | 90 |
| AR-F7-P-H-25-287-287-130-FW-W | F7 | ePM1 55% | 287 × 287 × 130 | 3.2 | 750 | 110 |
| AR-F7-P-H-25-287-592-130-FW-W | F7 | ePM1 55% | 287 × 592 × 130 | 6.5 | 1,500 | 110 |
| AR-F7-P-H-25-490-592-130-FW-W | F7 | ePM1 55% | 490 × 592 × 130 | 10.7 | 2,500 | 110 |
| AR-F7-P-H-25-592-592-130-FW-W | F7 | ePM1 55% | 592 × 592 × 130 | 13 | 3,000 | 110 |
| AR-F8-P-H-25-287-287-130-FW-W | F8 | ePM1 75% | 287 × 287 × 130 | 3.2 | 750 | 140 |
| AR-F8-P-H-25-287-592-130-FW-W | F8 | ePM1 75% | 287 × 592 × 130 | 6.5 | 1,500 | 140 |
| AR-F8-P-H-25-490-592-130-FW-W | F8 | ePM1 75% | 490 × 592 × 130 | 10.7 | 2,500 | 140 |
| AR-F8-P-H-25-592-592-130-FW-W | F8 | ePM1 75% | 592 × 592 × 130 | 13 | 3,000 | 140 |
| AR-F9-P-H-25-287-287-130-FW-W | F9 | ePM1 85% | 287 × 287 × 130 | 3.2 | 750 | 160 |
| AR-F9-P-H-25-287-592-130-FW-W | F9 | ePM1 85% | 287 × 592 × 130 | 6.5 | 1,500 | 160 |
| AR-F9-P-H-25-490-592-130-FW-W | F9 | ePM1 85% | 490 × 592 × 130 | 10.7 | 2,500 | 160 |
| AR-F9-P-H-25-592-592-130-FW-W | F9 | ePM1 85% | 592 × 592 × 130 | 13 | 3,000 | 160 |
Structural Components
Application Areas
Product Advantages
Filter Selection Criteria
- Nominal and actual system airflow
- Required ISO 16890 filter class
- Filter-housing width and height
- Available space for 130 mm filter depth
- Permitted initial and final pressure drop
- Compatibility with 25 mm flange
- Requirement for poured or EPDM gasket
- Airflow direction and surface-protection side
- Ambient temperature and relative humidity
- Dust concentration and particle characteristics
Inspection and Maintenance
The operating pressure drop should be monitored regularly with a differential pressure indicator or transmitter. Filter replacement should be determined by evaluating pressure drop, actual airflow, dust loading, operating time, hygiene conditions and the physical condition of the filter together.
Unless the technical documentation clearly states that the glass-fibre filter media is washable, it should not be cleaned with water or compressed air. Improper cleaning can damage the filter media, pleat geometry, plastic frame and perimeter sealing.
Frequently Asked Questions
Select the Right Rigid Filter for Your Project
Contact Airtes for Rigid Filter (Plastic Frame) selection according to airflow, ISO 16890 class, filter dimensions, pressure drop, surface protection and gasket requirements.
