Catalogue Bzi Gb

8/9/2019 Catalogue Bzi Gb

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2/15

The Axipal range of aerofoil axialflow fans with adjustable pitch angleblade, low and medium pressure issuitable for all air-movementapplications with clean, dusty orhumid air at temperatures of between20C and +200C.

Axipal characteristics: Volumes up to 300,000 m3/h Pressures up to 1400 Pa Efficiency up to 77 % Low noise levels

Guaranteed performances

Axipal gives the exact duty required.

The following enable fine adjustmentsto be made: Adjustable blade angle when

stationary. Possibility of fitting motors of

various frame sizes. Hub bore diameter easily changed

to suit requirements.The Axipal BZi fan permits anoperation at a duty point on theextreme left hand side of the curve,where a conventional fan wouldstall at such operating points.

An extensive range

The Axipal fan range includes: 14 impeller diameters

(350 to 1,600 mm) Up to 4 number of blades 4 direct-drive speeds 1 V-belt arrangement 4 standard arrangements 1 complete range of standardized

accessories

ReliabilityThe Axipal fan is made from mass-produced components of straightforward technological design: Die cast aluminium blades Pressed carbon steel hubs Die cast aluminium centre boss Taper lock bush Electric motors from reputable

manufacturers in compliance withEuropean standards

Low initial cost

The specific blade profile design ofAxipal enables a smaller diameterfan than the conventional design toachieve the same performance,therefore reducing cost.The Axipal fan exhibits the bestefficiency in its category. Hence,smaller motors can be used: thusreducing purchase and operationalcost.The Axipal production is more than10,000 units per year, which hasled to a high level of industrialautomation and semi-automationprocesses.

Short delivery time

The Axipal can be delivered in anextremely short time thanks to: computerized production adminis-

tration rationalization of the components

An extensive number ofapplications

The technical department and thesales agencies of Flakt Solyvent-Ventec are equipped with computerselection programmes in order torespond very quickly on all specificdemands:

processes in industry

Refrigeration(condensers, evaporators)

Cooling of motors or heat

exchangers Exhausts through chimneys Paint spray booth extraction etc.

the building industry

smoke extraction applications car park ventilation road or rail tunnel ventilation pressurisation of stair wells and air

locks general or factory ventilation the Axipal fan range is certified

for smoke removal.

The Axipal fan range


3/151

Adjustmentof the fan performances

The Axipal axial flow fan with anadjustable blade pitch angle can beselected and set to match thecustomer duty requirements. It alsoallows modifications of the fanperformance and fine tuning of thecharacteristics to suit a ventilationinstallation.

The Axipal is a true axial flow fanwith adjustable blade pitch angle.Apart from changing the impellersblade angle, it is also possible toadapt a motor with a larger frame

size to suit the newly definedcharacteristics, by simply using astandard tool.

The Axipal flexibility is based uponits bolted construction.*

The Axipal allows a precise adjust-ment of fan performance to theneeds of the installation withouteffect on acoustical properties.

In fact, changing the Axipal impellerblade angle has negligible influenceon the sound level emitted by the fan.

Stable and quiet running

Axipal BZi has specific aerodynamicfeature (break point at low volumes)assuring satisfactory operation inthe case of sudden increase ofpressure losses (e.g. filter clogging).

The Axipal noise level is very low,resulting in important savings ininsulation equipment.

Minimum energy consumption

Due to their blade design, AxipalBZi fans give the best possible effi-ciency for low and medium pressureaxial flow fans in their category.The Axipal BZi is definitely theaxial flow fan which consumes theless energy.

* NOTE: When the fan performances areto be increased, it is imperative to determine

the additional absorbed power resultingfrom the modification of the blades angle.The newly determined value will indicate

whether to keep the existing motor or changeit to a larger frame size.

Guaranteed results

150

100

50

0.50 1 21.5 2.5

Volume(m3/s)

Totalpressure

(Pa)

Compared with a conventional axial flow fanhaving 3 blades impeller, and AXIPAL BZi 2 bladesimpeller covers this additional operating zone(same impeller diameter and rotation speed).

Break of continuity

AXIPALBZi

AXIAL FLOWFANOFCONVENTIONAL DESIGN

Dyna

micpress

ure

7

12

17

12

17

22

27

32

22

27

32

37

7


4/152

Extensive range

These fans can be operated vertically or horizontally.These arrangements are with direct drive; the impeller is directly fitted onto motor shaft. They can be used in standardconstruction for all applications where the supplied air is clean, non dusty and has a temperature between 20 to +40 C.

The wall mounting is used for sup-ply or extraction of fresh or foul air.Air inlet can be either motor sideor impeller side.

Some specific applications:

MAT*: for transformer radiatorsBZF* : for exchangers

The short casing VR and long casing VA arrangements can be used for similarapplications and for the duct mounting.For temperatures over 40 C, their use is possible with specially adapted motors,in particular for the smoke removal applications VRD* and VAD*.

Arrangements

MA Wall mounting VR Short casing VA Long casing

VP Long casing. V-belt drive SA* Cone mounted - Direct drive SP* Cone mounted - V-bely drive

3 bladed impeller driven via V-beltswith the motor fitted to the outsideof the casing standardized up to size1250. Use is recommended whereair or gas is humid, hot or explosiveetc, making direct drive unsuitablebetween 20 C and +90 C. Can

be used at up to +150 C in specialversion (consult us for details).

Impeller fitted directly to motorshaft, motor protected from handledgas by sheet metal cone. Can beused at temperatures of up to+200 C in the special constructionversion (consult us for details).

3-bladed impeller fitted on end ofshaft. Recommended where thearrangement SA does not meet theoperation conditions.

* Special arrangements(Consult us for exact type selection).


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Axipal BZi

500Pressiontotale/Gesamtdruck/Totalpressure

150 6301 500

1 000

500

100

50

10

100

50

10

5

1

1 000 5 000 10 000 20 000 30 000

Dbit/Volumenstrom/Volume

m3/h

m3/s9876543210.5

Pa mm CE/mm WS/mm WG

560

500

450

400

355630

560

500

450

400

355

630

560

500

450400

355

By using these charts, a preselection of the fan size can be done.

For more precise information, refer to the corresponding fan curve.

Contact the sales department FlaktSolyvent-Ventec for operating with 60 Hz.

preselection charts (50 Hz)

Sizes 355 to 6302 900 tr/mn/Upm/R.P.M.

1 450 tr/mn/Upm/R.P.M.

950 tr/mn/Upm/R.P.M.


7/155

Axipal BZi

35 000Pressiontotale/Gesamtdruck/Totalpressure

200

100

20

70 000 100 000


m3/h

m3/s60503020


300 30

400

50050

600 60

800

1 000100

10120 000

40

150 000 200 000

7010

1600

1400

1600

1400

5 000

1501 500

1 000

500

100

50

10

100

50

10

5

1

10 000 20 000 50 000 100 000 150 000 m3/h

m3/s54321

1250

10 20 30 40

Pressiontotale/Gesamtdruck/Totalpressure



1120

1000

900

800

710

1250

1120

1000

900

8001250

1120

1000710



1 450 tr/mn/Upm/R.P.M.



Sizes 1400 - 1600

Sizes 710 to 1250


8/156

D

3

56

33

80

60

rs

N Nbr of OctaveBand Mid-frequency (Hz)

r.p.m. blades63 125 250 500 1000 2000 4000 8000

2

326 17 10 5 5 8 12 20

720 4

6

9 38 18 9 4 6 11 14 21

2 26

3 2718 12 6 4 7 11 18

950 4 28

6 30

9 40 21 5 9 13 17

2 26

1450 3 28

19 13 6 4 7 11 174 30

6 33

2 36 18

2900 3 38 20

14 8 5 5 9 144 39 22

6 41 29

Table 1

Sizes 355-400-450-500 560-630-710 800-900-1000 1120-1250-1400 1600

Corrections 10 11 12 13 14

Table 3

Sizes 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600

Corrections 2 3 3 4 4 5 6 7 7 8 8 9 10 11

Table 2

Acoustics

rs: hemispheric radius (m) - D : inlet diameter (m) - r s: 1 + 0.5 D

Bird's eye view of the test bed

The sound pressure levels have beendetermined from test measurementsin compliance with the French

standard NF S 31-021.

Sound power levelThe Standard NF S 31-021 definesthe fan sound Power level, rated onthe A scale.To do so, we measure the soundPressure level Lp rated on the Ascale, as well as its spectrum compo-sition, at 3 points as indicated inthe sketch here-after.These measurements are done in atest laboratory where the fan isconnected to a reduced tunnel duct

system.The sound Power level Lw is calcu-lated using the following formula:Lw = Lp + 10 log 2 rs

2.2 rs

2 is the hemispherical surface atwhich the measurements are taken,in compliance with the FrenchStandard. The value of 10 log 2 rs

2

is relevant to the fan size, it is givenin table 1.The total Lp of the 3 measuredsound pressure levels at points 3-5and 6, is given on the fan curve.

Sound power spectrumFor an accurate calculation of noisereduction in a duct system, it is neces-sary to have the sound power level byoctave ban rated on the A scale.The spectrum is obtained by addingto the total sound power level theconstants given in table 2.

Average level of sound pressureThe French Standard NF S 31-021does not determine a contractualtotal sound pressure level.However, we may consider the total

sound pressure level, rated on the Ascale, the one measured at the 3hemispheric points 3-5 and 6according to the standard. The totalsound pressure level is indicated onthe fan curve.

Sound pressure spectrumThe sound pressure level by octaveband is obtained by adding to thetotal sound pressure level theconstants in table 2.

TolerancesThe indicated total sound powerand pressure levels are given with atolerance of 3 dB, and 5 dB peroctave band.

Where the sound power level can onlytake a physical value, the soundpressure level on the contrary, will beaffected by the surrounding surface,type, size and shape. Because theCETIAT rules do not make the sameallowance for surface conditions as theNF S 31-021 Standard, this will lead

to sound pressure levels which areapproximately 3 dB lower.The BS 848 which calls for measure-ments at different distances of that ofthe NF S 31-021 Standard, can leadto lower noise pressure levels between4 to 11 dB, depending on the fandiameter (see the corrections in table3).


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100

90

80

70

20

30

40

50

60

110

63 125 250 500 1000 2000 4000 8000

dB

Octave Bandmid-frequency (Hz) to ISO

N=105

100

95

90

85

80

75

70

65

60

55

50

45

40

35

30

25

20

15

Table 3

Mid-frequency

Scale A Scale C(Hz)

63 26.2 0,8

125 16.1 0,2

250 8.6 +0,2

500 3.2 +0,2

1000 + 0,2 +0.2

2000 + 1.2 0.2

4000 + 1,2 0.8

8000 1.1 3,2

Cylindrical silencers

Theear issensitive to theair static pressure variationswhich are transmitted to the eardrum and are perceived only whenthey are not too slow nor too rapid.

In a given area, the nuisance causedby noise is a function of the soundpressure level existing in this area.

Sound pressure level calculationsprovide the values of pressure levelson each of the 8 octave bands. It istherefore practical to define themaximum levels acceptable in eachoctave band.

ISO limits have been accepted bythe different standard bodies; they

are given as function of the noisefrequency.

On each curve, a figure indicatesthe maximum sound pressure at1000 Hz.

The spectrum to be compared withISO curves is linear and is found byadding to the sound pressure spec-trum the corrections of table 3.

When the maximum values impo-sed by the technical specificationsare less than the fan sound pressurelevel, an attenuator will be needed

to reach the required characteristics.

Standard construction

The cylindrical silencers have exter-nal casings made ofhot-dipped galvanised carbon steel.

The insulation material (mineralfibre) has a layer of impreviousmaterial to prevent the migration offibres into the air stream and linedwith a perforated galvanised metalsheet.

The connecting flanges are drilled

to permit direct connection ontothe Axipal BZi fan.

Selection

The attenua-tion achieved by

the cylindricalsilencers are given in

table 4. These values repre-sent the difference between the soundpower level of the fan alone and thatof the complete system fan-silencer.

The silencer performances can varywith the air velocity.

For velocities higher than 20 m/s,please consult us (maximum airvelocity 30 m/s).

The pressure losses introduced bythese silencers are considered to benegligible.

InstallationThe silencers must be fitted in the airstream between the fan and the areawhere the attenuation is required.

When the fan inlet is not ducted,an inlet cone must be used in orderto achieve the performances listedin table 4.

NOTE: The silencers are not designed to support the weight of the fan or of any other ducting components.The standard Axipal BZi fan supports can be used. The silencer dimensions are given on page 12.

Sizes TotalOctaveBand Mid-frequency (Hz)

63 125 250 500 1000 2000 4000 8000355400

11 4 5 6 9 11 9 11 11450500

560630 11 2 4 6 11 12 11 12 12710

800900 9 1 3 5 10 11 10 10 101000

11201250

8 1 3 7 10 6 8 8 514001600

Table 4


10/158

Overall dimensions of arrangements

MA arrangement

A

G

HC

B F

n hole d off vertical axis on C

Operating conditions:Not suitable for air carrying abrasive particlesor corrosive substances.For temperatures of less than 20 C orbetween +40 C and +120 C, consult us fordetails (special motors).

(1) Approximate weight without motor and accessories.*Only welded construction

The dimensions are in mm and weights in kg.

VR arrangement

Fans 400 450 500 560 630 710 800 900 1000* 1120* 1250*

A 400 450 500 560 630 710 800 900 1000 1120 1250

B 165 180 195 215 255 290 325 335 385 440 485C 466 520 574 642 716 808 905 1020 1130 1262 1408F TO SUIT MOTOR

G 489 545 600 667 740 833 933 1050 1160 1293 1438Mot. H max. 100 112 112 112 132 132 132 180 180 225 225

n 8 8 12 12 12 16 16 16 16 20 20d 12 12 12 12 12 12 12 16 16 16 16

Weight(1) 12 15 19 22 32 39 54 84 125 154 180


A

C

G

H

S

Y XX

B

V UU

TF4 oblong holes

f x 2 f

Operating conditions:

Not suitable for air carrying abrasive particlesor corrosive substances.For temperatures of less than 20 C orbetween +40 C and +120 C, consult us fordetails (special motors).

(1) Approximate weight without motor and accessories.

Sizes 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600

A 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600B 200 215 245 250 255 305 340 370 500 545 615 620 650 650

C 395 450 500 560 620 690 770 860 970 1070 1190 1320 1470 1680F TO SUIT MOTOR

G 420 480 530 590 650 720 800 910 1010 1130 1250 1380 1530 1730Mot. H max. 90 100 112 112 112 132 132 132 180 180 225 225 280 280

n 8 8 8 12 12 12 16 16 16 16 20 20 20 24d 10 12 12 12 12 12 12 12 16 16 16 16 16 20

S 310 345 345 385 385 430 480 540 600 665 790 790 950 950T 390 450 490 470 470 525 595 575 690 690 790 790 910 910U 25 25 25 25 25 25 45 45 45 45 45 45 50 50V 340 400 440 420 420 475 505 485 600 600 700 700 810 810X 30 30 30 30 30 30 30 30 30 30 30 30 30 30Y 247 262 292 296 301 351 394 422 560 603 677 682 726 718

f 12 12 12 12 12 12 12 12 16 16 16 16 16 16Weight(1) 11 13 16 21 24 34 40 58 99 150 184 207 283 383

Mounting feet for installation of A.V. mounting (see page 11)

Normal air flow direction: inlet on impeller side-outlet on motor side.Inverse air flow direction(to precisize): inlet on motor side-outlet on impeller side.


11/159

VA arrangement

access door

4 oblongholesf x 2 f

X XY

B

C

A

H

S

G

V UU

T


Operating conditions:Not suitable for air carrying abrasive particlesor corrosive substances.For temperatures of less than 20 C orbetween +40 C and +120 C, consult us fordetails (special motors).


The dimensionsare in mm and weightsin kg.

VP arrangement

X XY

B

A

C

H

G

S

V

T

U U

n hole doff vertical axis

on C

4 oblongholesf x 2 f

Operating conditions:

Not suitable for air carrying abrasive particlesor corrosive substances.

Standard construction: from 20 C to +90 C.

High temperature construction: from +90 Cto 150 C.

Over +150 C: consult us.


Sizes 400 450 500 560 630 710 800 900 1000 1120 1250

A 400 450 500 560 630 710 800 900 1000 1120 1250B 435 470 470 565 600 600 650 670 670 700 700

C 450 500 560 620 690 770 860 970 1070 1190 1320G 480 530 590 650 720 800 910 1010 1130 1250 1380

Mot. H max. 100 100 132 132 132 132 160 180 180 200 200n 8 8 12 12 12 16 16 16 16 20 20

d 12 12 12 12 12 12 12 16 16 16 16S 345 345 385 385 430 480 540 600 665 790 790T 450 490 470 470 525 595 575 690 690 790 790U 25 25 25 25 25 45 45 45 45 45 45V 400 440 420 420 475 505 485 600 600 700 700X 30 30 30 30 30 30 30 30 30 30 30Y 482 517 516 611 646 654 702 730 728 762 762f 12 12 12 12 12 12 12 16 16 16 16

Weight(1) 35 39 45 57 68 75 114 142 178 243 268

Sizes 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600

A 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600B 420 435 460 470 525 560 605 650 830 850 965 970 1200 1200

C 395 450 500 560 620 690 770 860 970 1070 1190 1320 1470 1680G 420 480 530 590 650 720 800 910 1010 1130 1250 1380 1530 1730

Mot. H max. 90 100 112 112 112 132 132 132 180 180 225 225 280 280n 8 8 8 12 12 12 16 16 16 16 20 20 20 24

d 10 12 12 12 12 12 12 12 16 16 16 16 16 20S 310 345 345 385 385 430 480 540 600 665 790 790 950 950T 390 450 490 470 470 525 595 575 690 690 790 790 910 910U 25 25 25 25 25 25 45 45 45 45 45 45 50 50V 340 400 440 420 420 475 505 485 600 600 700 700 810 810X 30 30 30 30 30 30 30 30 30 30 30 30 30 30Y 467 482 507 516 571 606 659 702 890 908 1027 1032 1276 1268f 12 12 12 12 12 12 12 12 16 16 16 16 16 16

Weight(1) 15 17 21 28 34 44 53 78 133 193 241 271 375 526

Normal air flow direction: inlet on impeller side - outlet on drive side

Normal air flow direction: inlet on impeller side - outlet on motor side


12/1512

Overall dimensions of accessories

Md: weight of the flanged silencer in kg.

A

B

covering 30200

C

n hole d off vertical axis on Cscrew band clip

Sizes 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600

A 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600

B 420 480 530 590 650 720 800 910 1010 1130 1250 1380 1530 1730

C 395 450 500 560 620 690 770 860 970 1070 1190 1320 1470 1680

n 8 8 8 12 12 12 16 16 16 16 20 20 20 24

d 10 12 12 12 12 12 12 12 16 16 16 16 16 20

*NOTA : Thickness of flexible connection sleeve for T


13/1513

outside A

Fans 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600

A 360 420 500 540 600 680 780 880 980 1080 1240 1380 1540 1760

Div. 20 20 20 20 20 20 20 20 20 20 20 20 20 20

fix 410 466 520 574 642 716 808 905 1020 1130 1262 1408 1580 1800

Wireguard

"Basket type" wireguard

Wire guards, bolded construction

Flat wireguard for inlet cone(impeller side)

Fans 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600

A 360 400 480 540 600 640 720 820 940 1020 1160 1280 1420 1640

Div. 10 10 10 10 10 10 10 10 10 10 10 10 10 10

fix 395 450 500 560 620 690 770 860 970 1070 1190 1320 1470 1680

Fans 400 450 500 560 630 710 800 900 1000 1120 1250

A 420 500 540 600 680 760 860 980 1080 1220 1380

Div. 10 10 10 10 10 10 10 10 10 10 10

fix 466 520 574 642 716 808 905 1020 1130 1262 1408

Flat wireguard for MA casing (impeller side)

Fans 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600

A 360 400 460 520 600 640 720 820 940 1020 1140 1280 1420 1640

Div. 20 20 20 20 20 20 20 20 20 20 20 20 20 20

fix 395 450 500 560 620 690 770 860 970 1070 1190 1320 1470 1680

Flat wireguard for VA - VP casing (motor side)

Fans 400 450 500 560 630 710 800 900 1000 1120 1250

H 167 181 173 162 201 182 169 360 332 342 315

D 448 503 559 625 703 790 890 1004 1114 1248 1392

Basket type wireguard for MA arrangement

Fans 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600

H 122 119 114 114 114 142 116 102 175 150 146 146 238 238

D 356 396 456 516 576 630 716 816 916 1016 1136 1276 1426 1636

Basket type wireguard for VR arrangement

Flat wireguard for VA - VR - VP casing (impeller side)

General tolerance limits:2 mm

D

H


14/1514

Volume in m3/s

Pressure in Pa

Performance curve

Dynamic pressure curve withoutdiffuser (read values on scale 2)

Dynamic pressure curve withdiffuser

Blade angle in

Maximum pitch angle in

Absorbed power curve in kW

Average sound pressure levelin dB(A)

EXAMPLE

An AXIPAL BZi 500 fan with 4 bladesoperating at 1,450 r.p.m. at thenominal point corresponding

to a volume of 2.3 m3/s and a total pressureof 130 Pa.

One reads off:

Volume (q): 2.3 m3/s

Total pressure (Pt): 130 Pa

Blade angle: 25

Absorbed power (Pabs): 0.46 kW

Dynamic pressure (Pd): 80 Pa

Dynamic pressure withdiffuser: 40 Pa

Average sound pressure level: 69 dB(A)M

250

50

0 0.5 2 2.5

7

1 1.5 3

200

150

100

0.18 kW

0.2

0.25

0.3

0.35

0.4

0.45

0.5

0.6

0.7

0.8

73

72

71

70

68

67

12

17

22

27

32

37

M

8

39

2

6

4

5

1

69

Pr

essiontotale(Pa)/Gesamtdruck(Pa)/Totalpressure(Pa)

Dbit (m3/s) / Volumenstrom (m3/s) / Volume (m3/s)

Pressio

ndyna

mique

/Dynam

ischerDru

ck/Dy

namicp

ressur

e

Pressiondy

namiqueave

cdiffuseur/

Dynamisch

erDruckmit

Austrittsdiff

usor/Dyna

micpressure

withdiffuser

duct

Conditions

Air at 20 CRelative humidity : 65 %

Absolute atmosphere pressure : 760 mm HgAir density : 1.2 kg/m3

Guaranteed performance

- With normal air-flow direction:inlet on impeller side, outlet on drive side.

- With inlet cone (without wire guard) when the inlet is free orwhen connected at inlet and outlet to ducts. Without an inletcone, performances are lower and sound level increases.

TolerancesAccording to French SCIMA (Manufacturers Association rules forventilation products):

Volume :5 % of the nominal volumeEfficiency :6 % of the guaranteed efficiencyNoise level : see technical manuals

Axipal BZiHow to read direct drive axipal fansperformance curves 50 Hz For 60 Hz ask for specific broshure

VA arrangementVRMA

Calage maxiMax. Schaufelstellung:Max. pitch angle:

37

palesschaufelnblades

4


15/15

Axipal BZiHow to read V-belt driven axipal fansperformance curves 50 Hz and 60 Hz

Volume in m3/s

Pressure in Pa

Performance curve

Dynamic pressure curve withoutdiffuser (read values on scale 2)

Dynamic pressure curve withdiffuser

Scale of rotation speed r.p.m.

Speed limit r.p.m.

Absorbed power curve in kW

Average sound pressure levelin dB(A)

EXAMPLE

An AXIPAL BZi 500 fan arrangement VPoperating at the nominal point

One reads off:

Volume (q): 4.6 m3/s

Total pressure (Pt): 500 Pa.

Rotation speed: 2,950 r.p.m.

Absorbed power (Pabs): 3.7 kW

Dynamic pressure (Pd): 340 Pa.

Dynamic pressure withdiffuser:210 Pa.

Average sound pressure level:88 dB(A)

600

400

200

0 1 3 4 5

800

3000

2500

2

2000

Vitesse de rotation (tr/mn) Drehzahl (1/min.)Rotation speed (R.P.M.)

0.4 kW

0.6

0.81

1.5

2

2.5

3

3.5

4

4.5

67

74

79

82

84

86

88

89

N

8

3

9

2 6

4

5

1Dbit (m3/s) / Volumenstrom (m3/s) / Volume (m3/s)

P

ressiontotale(Pa)/Gesamtdruck(Pa)/Totalpre

ssure(Pa)

Pressio

ndynam

ique/D

ynamis

cherDr

uck/D

ynamicpress

ure

Pressiondy

namiqueav

ecdiffuseu

r/Dynamis

cherDruckm

itAustrittsd

iffusor/Dy

namicpress

urewithdif

fuserduct

ConditionsAir at 20 CRelative humidity : 65 %

Absolute atmosphere pressure : 760 mm HgAir density : 1.2 kg/m3

Guaranteed performance- With normal air-flow direction:inlet on impeller side, outlet on drive side.

- With inlet cone (without wire guard) when the inlet is free or whenconnected at inlet and outlet to ducts. Without an inlet cone,performances are lower and sound level increases.

TolerancesAccording to French SCIMA (Manufacturers Association rules for ven-tilation products):

Volume :5 % of the nominal volumeEfficiency :6 % of the guaranteed efficiencyNoise level : see technical manuals

VP arrangement3pales

schaufelnblades

N

taille

CalageSchaufelstellung:Pitch angle:

27

Vitesse maxi (tr/mn)Max. Drehzahl (Upm)Max. speed (R.P.M.)

3160

AcoustiqueEquivalence a vec norme

British Sta ndard

Correction: 4dB

Sound levelsEquivalence

to B ritish S tanda rdCorrection: 4dB

500

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