MAV FOR DYNAMIC CONTROLLED ATMOSPHERES METAL AXIAL … · 2018-09-05 · • SR – sickle profile axial impellers, diameters from 550 mm to 1100 mm • C ... third-party, according

MAV FOR DYNAMIC CONTROLLED ATMOSPHERESMETAL AXIAL VENTILATORS

HW VENTILATION S.r.l. I viale dei Kennedy, 81/83 I 20027 Rescaldina (MI) ITALY I T +39 0331 1558 815 I F +39 0331 1225 767 I E [email protected] I W hwventilation.it

MAV FOR DYNAMIC CONTROLLED ATMOSPHERESMETAL AXIAL VENTILATORS

Description and specifications:

MAV ventilators for dynamic controlled atmospheres are highly efficient duct ventilators, designed to provide high pressures and airflows with low noise emission levels. The ventilators have diameters ranging from 500 mm to 1250 mm.The ventilators normal working temperatures range from -40° C to +120° C, and can reach up to 200/300° C with customized solutions.

Applications:

Dynamic controlled atmospheres storage systems (fruit, vegetables).

Impeller:

MAV ventilators can be assembled employing a variety of HW Ventilation fans.

Fixed pitch axial flow fans – 6/8/10/14 blade configurations• TS (subtypes G, D) – airfoil profile axial impellers, diameters from 230 mm to 906 mm• Q – sickle profile axial impellers, diameters from 230 mm to 750 mm

Variable pitch axial flow fans – 5/9/12/16 blade configurations• TM (subtypes N, V) – airfoil profile axial impellers, diameters from 300 mm to 1270 mm• R – reversible axial impellers, diameters from 550 mm to 966 mm• SR – sickle profile axial impellers, diameters from 550 mm to 1100 mm• C – sickle profile axial impellers, diameters from 450 mm to 1282 mm

TS, TM, and C product families are particularly suitable for dynamic controlled atmospheres. Given their high blade length / chord length ratio, these blades provide the expected high levels of pressures and efficiency.

All HW Ventilation impellers have been tested against ErP 2015 directive for energy efficiency of axial fans in our AMCA 210-07 wind tunnel.

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MAV METAL AXIAL VENTILATORS

Blade and hub/boss materials

Following is a list of standard blade materials:

MAV for high-temperature applications

MAV ventilators are available also in high-temperature resistant versions, which employ C impel-lers totally made of aluminum. Such special configurations have been successfully tested by Applus third-party, according to international standard EN 12101-3:2002. The ventilator successfully resisted at a temperature of 200°C for two hours, and at 300°C for two hours.The full test report is available upon request.

Hubs and bosses are made of a highly resistant light aluminum alloy. Customized solutions for every special need in terms of performance, design, color are available upon request. The materials employed in our fans are approved for food contact applications and carry all the relevant certifications.

Motor:

High efficiency (IE2, IE3) standard asynchronous three-phase motors.• Standard tension 400V, 50Hz• Power from 0.12kW to 15kW• 2, 4, 6 poles• Suitable for use with inverter• Class F insulation• Housing protection level IP55• Low noise• Simple maintenance• Available configurations: B3 with foot mounting, flange mounted B5, flange mounted B14

MATERIAL DESCRIPTION STD. COLOR*OP. TEMPERATURE

***

PPG Polypropylene Glass Reinforced (PP 30% glass) Orange -20°C to +85°C

PAG Polyamide Glass Reinforced (PA6) White -40°C to +120°C

RYT Ryton Brown -50°C to +200°C

PAA** Antistatic Polyamide Black -40°C to +120°C

PAX** Antistatic, Self extinguishing PA Black -40°C to +120°C

PAM** Antistatic, Self extinguishing, Magnetically shielded PA Black -40°C to +120°C

*Custom colors available upon request **ATEX materials for hazardous environments ***Contact technical dpt. for customized advise



Casing:

Short or long casing made of steel sheet, with fixing flanges. The casing can be treated with epoxy paint to prevent corrosion and rust.AISI Inox 304-316 available upon request.Depending on the casing length, the motor can be totally (long-casing) or partially (short-casing) inside the casing (see Dimensions).

MAV Ø A Ø B Ø C Ø D # Holes E G Ø

500 510 560 590 250 ÷ 430 12 12

560 570 620 650 300 ÷ 430 12 12

630 640 690 720 300 ÷ 430 12 12

710 720 770 800 300 ÷ 560 16 12

800 810 860 890 350 ÷ 640 16 16

900 910 970 1000 350 ÷ 640 16 16

1000 1010 1070 1100 350 ÷ 640 16 16

1120 1130 1190 1250 1000 20 16

1250 1260 1320 1380 1000 20 16

B

D

n° E holes G

AC

5

ISO 2768-c

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This dwg is HW VENTILATION's property. All rights are reserved

DESCRIZIONEDESCRIPTION APP.

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long-casing MAV short-casing MAV



Execution:

The impeller is directly coupled to the motor. Airflow can go from impeller to motor (sucking air), or from motor to impeller (pushing air).

A B

C D

Air flow direction

R blade type right rotation

Air flow direction

R blade type left rotation

Air flow direction

L blade type right rotation

Air flow direction

L blade type left rotation

The ventilator can be installed with its driveshaft parallel or perpendicular to the ground. The latter configuration is typical of destratificators:

Verniciato ISO 2768-m

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‘H’ type motor support arm ‘T’ type motor support arm

Motor support possible arrangements:

Parallel-to-the ground airflow arrangement Perpendicular-to-the-ground airflow arrangement2 3 4 5

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Performance diagrams

The performance diagrams in the following section of this datasheet are those of a standard MAV configuration. For the scope of this datasheet, we decided to choose highly efficient, HW Ventilation airfoil profile axial impeller – type D, type N and type V. These fans have been successfully employed in projects in which it was asked to reach high pressures and high airflows, while keeping noise emissions and energy consumption at low levels.D type impellers have a fixed pitch hub and were utilized for MAV with diameters up to 700 mm.N type impellers have a variable pitch hub and were utilized for MAV with diameters from 800 to 900 mm.V type impellers have a variable pitch hub and were utilized for MAV with diameters from 800 to 1250 mm.D, N, V blades are available in a wide variety of materials (see Impeller section). The performance data showed in this datasheet are referred to blades made of Polypropylene / Polyamide. Impellers are balanced according to UNI ISO 1940.Performance data of other impeller configurations are accessible through our Qualyfan selection software, or directly asking to our technical team.All HW Ventilation impellers have been tested against ErP 2015 directive for energy efficiency of axial fans in our AMCA 210-07 wind tunnel.

Accessories available upon request:

• Flat protection guards• Support feet• Inlet cone• Counter-flange

• Inspection door• Shutters• Silencers



0

Pst [Pa]

Pst [Pa]

0 Q [m3 / h]

Q [m3 / h]

60

00

65

00

70

00

75

00

80

00

85

00

90

00

95

00

100

00

105

00

110

00

115

00

120

00

125

00

130

00

350

300

250

200

150

100

50

260

225

190

155

120

85

50

100

00

105

50

1110

0

116

50

122

00

127

50

133

00

138

50

144

00

149

50

155

00

160

50

166

00

1715

0

177

00

MAV Ø 500

n° Ø impellerPower [kW]

rpm Max Airflow Q [m3/h]

1 500 8-8/D/45° 0,75 1500 10750

MAV Ø 590



1 500 8-8/D/45° 0,75 1500 10750

2

1



0

Pst [Pa]

Pst [Pa]

0 Q [m3 / h]

Q [m3 / h]

120

00

130

00

140

00

150

00

160

00

170

00

180

00

190

00

20

00

0

210

00

22

00

0

23

00

0

24

00

0

25

00

0

26

00

0

350

300

250

200

150

100

50

700

600

500

400

300

200

100

140

00

155

00

170

00

185

00

20

00

0

215

00

23

00

0

24

50

0

26

00

0

27

50

0

29

00

0

30

50

0

32

00

0

33

50

0

35

00

0

MAV Ø 700



3 700 10-5/D/40° 1,5 1500 21250

4 700 10-10/D/40° 2,2 1500 23000

MAV Ø 800



5 800 5-5/V/32,5° 2,2 1500 28000

6 800 9-9/N/30° 3 1500 28000

7 790 9-9/N/35° 4 1500 32250

5

3

4

6

7



0

Pst [Pa]

Pst [Pa]

0 Q [m3 / h]

Q [m3 / h]

180

00

20

50

0

23

00

0

25

50

0

28

00

0

30

50

0

33

00

0

35

50

0

38

00

0

40

50

0

43

00

0

45

50

0

48

00

0

50

50

0

53

00

0

700

600

500

400

300

200

100

400

300

250

200

150

100

50

27

00

0

29

00

0

310

00

33

00

0

35

00

0

37

00

0

39

00

0

410

00

43

00

0

45

00

0

47

00

0

49

00

0

510

00

53

00

0

55

00

0

MAV Ø 900



8 890 5-5/V/30° 2,2 1500 30000

9 900 5-5/V/35° 3 1500 38000

10 900 5-5/V/37,5° 4 1500 41000

11 900 12-6/N/37,5° 5,5 1500 46000

MAV Ø 1000



12 1000 12-6/V/40° 3 1000 41500

13 1000 12-6/V/45° 4 1000 47500

14 1000 12-6/V/50° 5,5 1000 50000

12

8 9

13

14

10 11



0

Pst [Pa]

Pst [Pa]

0 Q [m3 / h]

Q [m3 / h]

27

00

0

30

50

0

34

00

0

37

50

0

410

00

44

50

0

48

00

0

515

00

55

00

0

58

50

0

62

00

0

65

50

0

69

00

0

72

50

0

76

00

0

400

300

250

200

150

100

50

400

300

250

200

150

100

50

25

00

0

29

50

0

34

00

0

38

50

0

43

00

0

47

50

0

52

00

0

56

50

0

610

00

65

50

0

70

00

0

74

50

0

79

00

0

83

50

0

88

00

0

MAV Ø 1120



15 1120 12-6/V/35° 3 1000 45000

16 1120 12-6/V/37,5° 4 1000 49000

17 1120 12-6/V/40° 5,5 1000 53000

18 1120 16-8/V/40° 7,5 1000 60000

19 1120 16-8/V/50° 1,1 1000 72000

MAV Ø 1250



20 1250 16-8/V/30° 4 1000 46000

21 1250 16-8/V/32,5° 5,5 1000 52500

22 1250 16-8/V/37,5° 7,5 1000 64000

23 1250 16-8/V/45° 1,1 1000 82000

20

15

16

21 23

1718 19

22



HW VENTILATION S.r.l.Viale dei Kennedy 81/8320027 Rescaldina (MI) – ITALY

www.hwventilation.itPhone +39 0331 1558 815Fax +39 0331 1225 767email [email protected]

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Documents

MAV FOR DYNAMIC CONTROLLED ATMOSPHERES METAL AXIAL … · 2018-09-05 · • SR – sickle profile axial impellers, diameters from 550 mm to 1100 mm • C ... third-party, according