Page 12 - Vira Filter Digital Catalouge

Pleated Filters

DESCRIPTION
Primary filter for air conditioning systems. Progressively structured
filter media composed of finest glass fibers, bonded with a high
temperature resistant binder.
Converted into finished filter cells by aluminium stretcher grids.
Conditioning and ventilation systems.
Low start pressure drop.
High dust holding capacity.
Reduced operating costs.
Provides long service interval.
Available in a variety of sizes.

Rated Advisable Recommended Initial Relative
Size Filter Class Average Efficiency Air Flow Cross Speed Final Pressure Drop Pressure Humidity Filter Area
(W*L*D) ISO 16890 (%) ISO 16890 (%) 3 (m) 2
(m/h) (m/s) ISO 16890 (Pa) Drop (Pa) (%)
287*287*48 >40 850 0.50
287*592*48 >40 1700 0.60
592*592*48 >40 3400 1.20
40 50
287*287*96 >40 1000 0.90
287*592*96 >40 2100 1.50
592*592*96 >40 4200 2.50
2.5 200 100
287*287*48 >60 850 0.50
287*592*48 >60 1700 0.60
592*592*48 >60 3400 1.20
60 60
287*287*96 >60 1000 0.90
287*592*96 >60 2100 1.50
592*592*96 >60 4200 2.50

G3-G4
Pressure Drop (pa) 60
80
70
50
40
30
20
10
0
0 1.9 2.1 2.3 2.5 2.7
Face Velocity (m/s)

Rec.Final Average Average
Filter Filter Depth Pres.Drop Temp Filter Filter Arrestance Efficiency
Class Media (mm) (Pa) ( C) Frame Stage (%) (%)

G3-G4 30-40

Synthetic 80-90

50-100 1-2

250 70 Card board-Metallic

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