VDI 3926 Cleanable Filter Media Test System
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The Cleanable Filter Media Test System is designed for characterizing cleanable filter media according to VDI 3926-2. It evaluates filtration performance, dust loading capacity, and separation efficiency of filter materials. The system is compact and suitable for laboratory use, supporting standardised testing for development, optimisation, and quality assurance of filter media.
Features
Standardised Filter Testing: Supports alumina oxide aerosols (Pural NF, Pural SB).
Automated Operation: Up to 14 hours of unattended testing.
Multi-Aerosol Capability: Solid and droplet aerosols supported.
Flexible Design: Rapid modification for future tests and additional features.
Operator-Friendly Control: Intuitive software interface for setup, monitoring, and data logging.
Compact Laboratory Use: Lightweight and portable, suitable for small-scale testing.
Accessories
| Accessory | Description |
|---|---|
| Atomizer Aerosol Generator | Generates fine aerosol for filtration testing |
| Solid Materials Disperser | Produces solid aerosol particles for standardised tests |
| Aerosol Dilution System | Dilutes aerosols to desired concentration |
| Aerosol Spectrometer | Measures particle size distribution and filtration efficiency |
Standards
The system complies with:
(1) VDI 3926-2 – Test guideline for cleanable filter media.
(2) ASTM D6830-02 – Laboratory scale air filter test method.
(3) ISO 12103-1 – Standard test dust for filter efficiency evaluation.
(4) ISO 5011 – Air filter testing for engines and machinery.
Parameters
| Parameter | Unit | Value |
|---|---|---|
| Test Flow Rate | m³/h | 2 … 64 |
| Differential Pressure Measuring Range | Pa | – |
| Duration of Pressure Pulse | ms | 50 … 150 |
| Pressure Tank Capacity | bar | 2 … 6 |
| Test Specimen Dimensions | mm | Diameter ≤ 150 |
| Power Supply | – | 3 × 400 VAC, 16 A |
| Operating Medium (Aerosol) | – | Pural-NF, Pural-SB, DEHS |
| Sensors | – | Temperature, relative humidity |
| System Dimensions (W × H × D) | mm | 2800 × 1500 × 800 |
| Weight | kg | approx. 120 |
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