Page 13 - Vira Filter Digital Catalouge

Pocket Filters

DESCRIPTION
Medium and fine dust filters are primarily used in turbomachinery
air intake systems, ventilation and air conditioning systems,
laboratories, chemical and pharmaceutical plants as well as fume
removal hoods at workplaces.
These pocket filters are available in stitched and welded versions are
made of synthetic or glass-fibre media fulfilling filter classes G4 - F9.
Medium and fine dust filters are available with plastic or metal frames.
If required by the intended application, they can be equipped with
a continuous foamed-in-place seal as an additional option.

Low start pressure drop.
High dust holding capacity.
Large surface area.
Available in a variety of sizes.
Rated Advisable Recommended Initial Relative
Size Number Filter Class Average Efficiency Filter Area
(W*L*D) of Pockets ISO 16890 (%) ISO 16890 (%) Air Flow Cross Speed Final Pressure Drop Pressure Humidity (m) 2
3
(m/h) (m/s) ISO 16890 (Pa) Drop (Pa) (%)
287*287*300 3 >60 450 1.0
287*592*300 3 >60 850 2.1
592*592*300 6 >60 1700 4.2
50 40
287*287*600 3 >60 850 1.0
287*592*600 3 >60 1700 2.1
592*592*600 6 >60 3400 4.2
2.5 300 100
287*287*300 3 >50 450 1.0
287*592*300 3 >50 850 2.1
592*592*300 6 >50 1700 4.2
60 50
287*287*600 3 >50 850 1.0
287*592*600 3 >50 1700 2.1
592*592*600 6 >50 3400 4.2
G4-M5
Pressure Drop (pa) 40
50
30
20
10
0
2.3
2.5
0 1.9
2.1
Face Velocity (m/s) 2.7
Rec.Final Average Average
Filter Filter Depth Pres.Drop Temp Filter Filter Arrestance Efficiency
Class Media (mm) (Pa) ( C) Frame Stage (%) (%)

G4-M5 40-50

Synthetic 90-95

300-600 2-3

450 80 ABS-Metallic

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