Miljøgodkendelse til Varo Specialmaskiner A/S, Tingvej 34, 8543 ...

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Miljøgodkendelse til Varo Specialmaskiner A/S, Tingvej 34, 8543 ...

Filtration technical performance characteristics (according to EN 779, ANSI/ASHRAE 52.1-1992)

Arrestance (%)

Arrestance (%)

Pressure drop (Pa)

100

90

80

70

60

50

40

30

20

10

VNF-300

Dust loading vs. arrestance vs pressure drop

0

0 100 200 300 400 500 600 700 800

Dust loaded in g/m 2

0

Dust loaded in g/m² Arrestance Pressure drop

100

90

80

70

60

50

40

30

20

10

140

120

100

80

60

40

VNF-290

Dust loading vs. arrestance vs pressure drop

0

0 100 200 300 400 500 600

Dust loaded in g/m 2

0

Dust loaded in g/m² Arrestance Pressure drop

Clean air resistance

20

VNF-290

VNF-300

0

0 0,5 1 1,5 2 2,5 3

Air velocity (m/s)

Filtrair bv

De Werf 16, 8447 GE Heerenveen

P.O. Box 611, 8440 AP Heerenveen

The Netherlands

Tel. *31 (0) 513-626355

Fax *31 (0) 513-627306

E-mail: marketing@filtrair.com

www.filtrair.com

500

450

400

350

300

250

200

150

100

50

500

450

400

350

300

250

200

150

100

50

Pressure drop (Pa)

Pressure drop (Pa)

Technical data “All-Rounders”

"All Rounders" VNF-300 VNF-290

Avg. arrestance (acc. EN 779) 91% 86%

Initial efficiency (dust spot) < 20% < 20%

Air velocity 1.5 m/s 1.5 m/s

Rated air flow (m³/h/m²) 5400 5400

Initial pressure drop 42 Pa 35 Pa

Final pressure drop 250 Pa 250 Pa

Dust holding at tested final 500 g/m² 620 g/m²

Class according to EN 779 G4 G3

Temp. resistance, constant up to 100°C up to 100°C

Temp. short peaks up to 120°C up to 120°C

Nominal thickness 20 mm 20 mm

Relative humidity up to 100% up to 100%

Roll sizes standard 2000 x 20 2000 x 20

Application specialty

1000 x 20 1000 x 20

Regenerable/washable yes yes

Uniquely suited for:

- general air handling units

- air conditioning systems

- ventilation systems of all kinds

- air intake pre-filtration banks

- window air conditioners

- home furnace air heaters

- railroad car ventilation

- intake and exhaust air systems for heavy industry and

chemical plants.

All data given are average indicative values with usual

accepted tolerances due to manufacturing variations and

inherent testing tolerances. All specific performance data will

require our explicit written confirmation.

Filtrair ® is the registered trade mark of Filtrair bv.

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