Filter Media Test System
Category：Filter Cartridge Filtration Tester
Introduction
The Test System for characterisation of cleanable filter media acc. VDI 3926-2. Testing of filter media is important for the development and optimisation of filter materials as well as for quality assurance during the production process.
Most interesting parameters for filter media characterisation are:
– differential pressure drop
– gravimetric separation efficiency
– particle size dependent filtration efficiency
– dust loading capacity
For these tasks We developed the Filter Media Test System which facilitates filter tests in accordance with guideline VDI 3926 exemplary embodiment 2 and ASTM D6830-02, but can also be used for other tests. Separation efficiency and dust loading tests on basis of the general requirements of ISO 16890, EN 779, DIN 71460-1, ISO/TS 11155-1 and ISO 5011 can be performed in small scale. Due to its compact and lightweight design this test rig can be used in the laboratory.
Applications
filter tests for cleanable filter according to VDI 3926-2
determination of fractional separation efficiency, dust loading capacity and differential pressure drop of filter mediafilter tests based on other standards (air cleaning filters ISO 16890, EN 779; cabin air filters ISO 11155-1)
development and optimisation of filter mediaquality assurance measurements
Standards
ISO 12103-1
ISO 5011
VDI 3926-2
Benefits
standardised filter testing with alumina oxide (e.g.: Pural NF)
automated testing procedure over 14 hours without intervention by operator
use of different aerosols possible (solid and droplet aerosols)
flexible design enables fast modification and future addons
operatir-friendly control software
Technical data
| Parameter | Unit | Value |
|---|---|---|
| Test flow rate | m³/h | 2 … 64 |
| Measuring range, differential pressure | 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 substance) | – | Pural-NF, Pural-SB, DEHS |
| Sensors (others) | – | Temperature, relative humidity |
| System dimensions (W × H × D) | mm | 2800 × 1500 × 800 |
| Weight | kg | approx. 120 |
Accessories
Atomizer Aerosol Generator
Solid materials disperser
Aerosol Dilution System
Aerosol Spectrometer
