Metal Filter
Metal Filter is a fully metallic, washable prefilter used in ventilation and HVAC systems to capture coarse particles, oil droplets and oil mist.
High-Durability G2 and G3 Coarse Filtration
The filter media consists of layers of expanded metal or woven wire mesh. Aluminum, galvanized steel and stainless steel material options allow adaptation to different temperature, corrosion and hygiene requirements.
Its robust all-metal construction, washable design and suitability for repeated use make it particularly suitable for kitchen exhaust systems, industrial air intakes and coarse filtration applications requiring high-temperature resistance.
Washable Construction
Metal filter layers can be cleaned using a suitable method and reused.
Up to 200°C
Can be used in high-temperature applications with a suitable metal and frame configuration.
G2 and G3 Classes
Offers ISO Coarse 25% and ISO Coarse 40% coarse filtration options.
25 and 48 mm
Available in two standard depths according to the filter housing and airflow requirement.
What Is a Metal Filter?
A Metal Filter is a coarse air filter manufactured by combining layers of expanded metal or woven wire mesh of different densities and geometries within a metal frame. The multilayer structure helps capture coarse dust, fibers and liquid aerosol particles from the air.
It can be used to capture oil droplets in kitchen ventilation systems, separate coarse particles at industrial air intakes and protect subsequent filtration stages.
Filter selection should consider airflow, face velocity, filter dimensions, ambient temperature, corrosion risk, oil load, required filtration class and allowable pressure drop.
Operating Principle
Contaminated Air Inlet
Air containing coarse dust or oil aerosols is directed toward the filter surface.
Contact with Metal Layers
Air passes through layers of expanded metal or woven wire mesh.
Particle Separation
Coarse particles and oil droplets impact the metal surfaces and are retained.
Filtered Air
Air with reduced coarse contaminants is delivered to the next stage of the system.
Technical Specifications
| Technical Parameter | Value | Technical Parameter | Value |
|---|---|---|---|
| Filter Standard | ISO 16890 | Recommended Final Pressure Drop | Initial ΔP + 50 Pa or initial ΔP × 3, whichever is lower |
| Filter Class | ISO Coarse | Maximum Operating Temperature | 200°C |
| Filter Material | Expanded metal or woven wire mesh | Standard Depths | 25 and 48 mm |
| Media Materials | Aluminum, galvanized steel or stainless steel | Frame Types | Aluminum, galvanized steel or stainless steel |
Product Coding Table
| Filter Type | Filter Class | Frame Type | Dimensions | Filter Material |
|---|---|---|---|---|
| AR: Metal Filter | G2 G3 |
G: Galvanized SS: Stainless steel A: Aluminum |
Width × Height × Depth
Example: 592 × 592 × 48 mm |
EA: Aluminum expanded metal EG: Galvanized expanded metal ESS: Stainless steel expanded metal WG: Galvanized woven wire mesh WSS: Stainless steel woven wire mesh |
AR-G3-G-WG-592-592-48
AR = Metal Filter
G3 = Filter class
G = Galvanized frame
WG = Galvanized woven wire mesh
592-592-48 = Width, height and depth
Model and Performance Table
| Filter Model | EN 779 Withdrawn |
ISO 16890 | Material | Dimensions W × H × D |
Nominal Airflow m³/h |
Initial Pressure Drop Pa |
|---|---|---|---|---|---|---|
| AR-G2-G-EA-287-287-25 | G2 | Coarse 25% | Aluminum | 287 × 287 × 25 mm | 850 | 90 |
| AR-G2-G-EA-287-592-25 | G2 | Coarse 25% | Aluminum | 287 × 592 × 25 mm | 1,750 | 90 |
| AR-G2-G-EA-437-592-25 | G2 | Coarse 25% | Aluminum | 437 × 592 × 25 mm | 2,600 | 90 |
| AR-G2-G-EA-592-592-25 | G2 | Coarse 25% | Aluminum | 592 × 592 × 25 mm | 3,400 | 90 |
| AR-G2-G-EA-287-287-48 | G2 | Coarse 25% | Aluminum | 287 × 287 × 48 mm | 850 | 65 |
| AR-G2-G-EA-287-592-48 | G2 | Coarse 25% | Aluminum | 287 × 592 × 48 mm | 1,750 | 65 |
| AR-G2-G-EA-592-592-48 | G2 | Coarse 25% | Aluminum | 592 × 592 × 48 mm | 3,400 | 65 |
| AR-G3-G-WG-287-287-25 | G3 | Coarse 40% | Galvanized steel | 287 × 287 × 25 mm | 850 | 90 |
| AR-G3-G-WG-287-592-25 | G3 | Coarse 40% | Galvanized steel | 287 × 592 × 25 mm | 1,750 | 90 |
| AR-G3-G-WG-437-592-25 | G3 | Coarse 40% | Galvanized steel | 437 × 592 × 25 mm | 2,600 | 90 |
| AR-G3-G-WG-592-592-25 | G3 | Coarse 40% | Galvanized steel | 592 × 592 × 25 mm | 3,400 | 90 |
| AR-G3-G-WG-287-287-48 | G3 | Coarse 40% | Galvanized steel | 287 × 287 × 48 mm | 850 | 65 |
| AR-G3-G-WG-287-592-48 | G3 | Coarse 40% | Galvanized steel | 287 × 592 × 48 mm | 1,750 | 65 |
| AR-G3-G-WG-592-592-48 | G3 | Coarse 40% | Galvanized steel | 592 × 592 × 48 mm | 3,400 | 65 |
Custom sizes can be manufactured.
Differential-pressure tolerance should be evaluated according to whichever value is greater: ±10% + 5 Pa or 10 Pa + 5 Pa.
G2 and G3 Filter Classes
G2 – ISO Coarse 25%
Suitable for general prefiltration applications where coarse dust, fibers, leaves and similar large contaminants need to be captured.
G3 – ISO Coarse 40%
Suitable for HVAC and industrial applications requiring higher coarse-particle filtration performance than the G2 class.
Material Options
Aluminum
A suitable option for lightweight construction, easy handling and general-purpose coarse filtration.
Galvanized Steel
Provides mechanical durability and economical use in standard HVAC and industrial applications.
Stainless Steel
Suitable for environments requiring resistance to humidity, corrosion, hygienic conditions or high temperatures.
Application Areas
Product Advantages
Cleaning and Maintenance Instructions
Technical Selection and Performance Note
The nominal airflow and initial pressure-drop values shown in the tables are provided for the corresponding product dimensions and reference test conditions.
Actual performance may vary depending on the number of filter layers, metal mesh type, face velocity, product dimensions, installation direction, oil and particle load, temperature and process conditions.
The 200°C operating temperature should only be considered when all selected media and frame materials are suitable for this temperature.
Metal Filter is intended for coarse filtration. Systems requiring fine-particle filtration, HEPA filtration, gas removal or odor control should use suitable additional filtration stages.
Get Technical Support for Metal Filter
Metal filter selection should be based on clear housing dimensions, airflow, temperature, oil load, filtration class, frame material and allowable pressure drop.
Contact Airtes for the selection and supply of standard or custom-size Metal Filters.
