AFC 131 Test System

AFC 131 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 Topas developed the AFC 131 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.

Standards

VDI 3926-2

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product sheet AFC 131

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Benefits

use of different aerosols possible (solid and droplet aerosols)
standardised filter testing with alumina oxide (e.g.: Pural NF)
automated testing procedure over 14 hours without intervention by operator
flexible design enables fast modification and future addons
operatir-friendly control software PAFWin

Applications

determination of fractional separation efficiency, dust loading capacity and differential pressure drop of filter media
filter tests for cleanable filter according to VDI 3926-2
filter tests based on other standards (air cleaning filters ISO 16890, EN 779; cabin air filters ISO 11155-1)
development and optimisation of filter media
quality assurance measurements

Technical data

Parameter title	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
dimension of test specimen	mm	diameter ≤ 150
power supply	-	3 × 400 V AC, 16 A
operating medium, aerosol substance	-	Pural-NF, Pural-SB, DEHS
sensors, others	-	temperature, relative humidity
dimensions (w × h × d)	mm	2800 × 1500 × 800
weight	kg	approx. 120

Accessories

Atomizer Aerosol Generator ATM 220
Solid materials disperser SAG 410
Aerosol Dilution System DIL 550
Aerosol Spectrometer LAP 322

Reference

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