Properties
Application
The PSG Pre-Filteris used in combination with gas sampling probes PSG Basic Probe and PSG Plus Probe for continuous extractive gas analysis. They serve for precisely representative sampling of sample gas with dust loads above 3g/m3. Typical applications are process monitoring and process optimization, e.g. in coal silos or cement plants.
Technology
The sinter metal filters series PSG Pre-Filter cover a temperature range of up to 900°C. By choosing an appropriate extension tube the position of the pre-filter in the process can exactly be determined. At risk of abrasion (erosion of filter material by dust particles with high speed) and for lifetime extension (deflection of dust particles) an appropriate deflector can be used. The PSG Pre-Filter have a G3/4“-male thread. All extension tubes have a R3/4“-male thread fitting to the female thread in the sample gas inlet of the gas sampling probes and a G3/4“-female thread for mounting of the pre-filter.
Functions
Due to filtration at the surface of the gas sampling PSG Pre-Filter with increasing operation time a steady growing dust layer (filter cake) is building up and acting as additional filtration layer. Moreover, it prevents a deep infiltration of dust particles into the sinter metal filter and thus has a service life prolonging effect.
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