Pocket filter booklet Compoplus
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Your partner for filter technology APPL I CATI ON I NDO O R AIR H Y G IE N E Bag-type filters are widespread products for the filtration of outdoor air in ventilation and air-conditioning systems. They are required in order to remove atmospheric components of the ambient air. As a result, they achieve a hygienically clean operating state of the ventilating and air-conditioning systems and the rooms supplied with air. Ambient air includes a widely-distributed spectrum of particles (liquid and solid), as well as gaseous components with different chemical, physical and biological properties. A...

Average arrestance (synthetic dust) The filter test standard EN 779 exists in order to enable the evaluation of air filters for ventilating and air-conditioning systems in their employment in the real filtering system and to enable the qualifying of filter classes. In this case it involves a laboratory testing method which subjects air filters to test aerosols in order to determine the particle separation. Average efficiency Minimun efficiency Em E min (DEHS-Aerosol @ 0,4 µm) (DEHS-Aerosol @ 0,4 µm) after IPA treatment In addition, a dust application occurs (akin to artificial ageing) in...

Your partner for filter technology FILT ER ME DI A MA DE O F MICROG L A S S F IBRE S If the required properties of deep-bed filter media are considered, nonwoven of microglass fibres technically represent the almost ideal material and have therefore been employed since the 1970's. However, scientists determined in the 1990's that under certain conditions microglass fibres have a carcinogenic effect on living organisms. This is due to the properties of microfine brittle fibres which break easily and can be verified as shedding from the air filter into the supply air. Via the respiratory...

THE P R I NCI P L E O F D E PT H F ILT RAT ION Pocket filters basically work according to the deepbed filter principle. Particles are deposited in the depth of the filter media on air-circulated fibres according to impact probability. For this reason deep-bed filter media must always be very porous to enable the admission of fine and coarse particles into the depth of the media. Furthermore, a more voluminous openpore structure facilitates the deposition of maximum quantities of deposited particles without the resistance due to the air flow of the deep-bed filter increasing considerably. In...

Your partner for filter technology COMPOPLUS ® FOR PERFECT FILTRATION Compoplus® filter media separate out the finest dusts far better and furthermore they have very favourable pressure drops. The Compoplus® filter layer structure is progressive. Both the fibre distances as well as the fibre diameters decrease in the direction of the clean-air side. The coarse particles are first held back on the dust-air side, then with increasing depth of filter layer the fine particles are also held back more and more until the necessary air purity is achieved. The entire filter media is used very...

MULTI FOL D P R O V E D A N D M U LT IFAC E T E D Multifold pocket filters are offered in 7 different filter classes (G3 to F9), where different filter media and converting procedures are employed. For the Multifold coarse dust filters T 25 and T 35 (filter class G3 and G4) and media filter TC 60 (filter class M5), we process thermally-bonded, synthetic microfibres with progressive layer structure on modern stitching systems with welding technologies. In case of the Multifold media filters TCC 65 (filter class M6) multi-layer, patented Kalthoff composite nonwoven (Pat. No. EP 0687 195 B1)...

Your partner for filter technology MULTIFOLD TYPE TCC · Galvanized, reinforced sheet steel frame, with flow profiles · Separately inserted single pockets jointed with interior frames, dismountable construction · M/F filter with thread-shaped spacers · Spacers and outer contours running conical over the bag length MULTIFOLD TYPE TC · Galvanized, reinforced sheet steel frame, with flow profiles · Separately inserted single pockets jointed with interior frames, dismountable construction · M/F filter with thread-shaped spacers · Spacers and outer contours running conical over the bag length ·...