Roof fans ВКВРМ

№3,55 №4
№4,5 №5
№5,6 №6,3
№7,1 №8
№9 №10
№11,2 №12,5

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General information

• Low and medium pressure

• One-side suction

• Number of blades 6 and 9

• Impeller with backward curved blades

• An be equipped with valves, trays, glasses

• Konstruktsuiya roof fans is completely protected from rain amosfernyh

• Lack of moisture through the fan inside the room depends largely on the quality of its installation and

qualification of the installer

 

Roof fans  ВКРВмare applied in the stationary ventilating systems  as sanitary and industrial units installed on roofs of the buildings. Roof smoke exhaust fans are designated for displacement of smokeand-air mixtures generated during fire out of a building.

Specifications of roof fans ВКРВм

Fan No.
Number of
blades
Electric motor
Capacity 103 х m3/hour
Total pressure, Pa Weight, kg
№3,55 6 0,25*1500 0,5-2,4 0-250 76
2,2*3000 1-4,8 0-1160 85
9 0,37*1500 0,6-2,85 0-252 75
3*3000 1,2-6,1 0-1160 87
№4 6 0,55*1500 1-3,7 0-320 89
3*3000 2-7,8 0-1400 100
9 0,75*1500 0,9-4,3 0-365 93
5,5*3000 1,8-8,6 0-1460 111
№4,5 6 0,75*1500 1,2-5,3 0-470 94
7,5*3000 3,2-11,2 0-1920 155
9 1,1*1500 1,4-6,2 0-470 94
11*3000 2,8-12,4 0-1950 94
№5 6 1,5*1500 2,2-7,6 0-590 130
9 2,2*1500 2,2-8,8 0-580 130
№5,6 6 0,75*1000 2-7 0-300 133
2,2*1500 3-10,4 0-700 133
9 1,1*1000 2-8,4 0-320 175,9
3*1500 3-12,4 0-730 175,9
№6,3 6 1,1*1000 2,8-10 0-395 161
4*1500 4,4-15,5 0-960 161
9 1,5*1000 3-11,6 0-420 180,5
5,5*1500 8-18,2 0-960 180,5
№7,1 6 2,2*1000 4-14,8 0-550 184
7,5*1500 6,1-22,1 0-1240 219
9 3*1000 4-17 0-550 189
11*1500 6,4-26 0-1240 233
№8 6 4*1000 6-21 0-680 272
15*1500 6,4-32 0-1530 389
9 3*750 4,5-19 0-400 266
7,5*1000 6-24,5 0-700 426
22*1500 9-37,5 0-1610 469
№9 6 3*750 6-22 0-460 308
7,5*1000 7-30 0-860 345
9 5,5*750 7-26 0-480 339
11*1000 8-36 0-900 410
№10 6 5,5*750 8-30 0-590 461
15*1000 12-41 0-1080 547
9 7,5*750 9-37 0-640 504
18,5*1000 12-49 0-1120 727
№11,2 6 11*750 12-44 0-780 565
22*1000 16-58 0-1390 665
9 15*750 14-52 0-800 570
30*1000 16-69 0-1400 963
№12,5 6 15*750 17-61 0-960 710
9 22*750 17-72 0-1000 1106

 

Mounted dimensions of roof  fans ВКРВм

Overall and mounting dimensions of ВКРВм №3.55 – №12,5

Fan No. Dimension , mm N N2
D D2 D3 d d2 L B H
3,55 595 430 350 16 М8 958 590 725 8 8
4 595 430 380 16 М8 984 590 768 8 8
4,5 595 490 430 16 М8 1138 700 924 8 8
5 595 490 430 16 М8 1138 700 803 8 8
5,6 772 660 525 16 М8 1363 830 930 8 8
6,3 772 660 595 16 М8 1370 830 1137 8 8
7,1 772 660 595 16 М8 1565 947 1215 8 8
8 1072 850 750 16 М8 1971 1220 1397 8 8
9 1072 850 750 16 М8 1971 1220 1397 8 8
10 1272 1040 920 19 М12 2215 1370 1531 8 8
11,2 1272 1040 950 19 М12 2272 1408 1604 8 8
12,5 1522 1310 1100 16 М12 2505 1580 1750 8 12

 

Aerodynamic characteristic of fans ВКРВм

ВКРВм №3,55

ВКРВм №4

ВКРВм №4,5

ВКРВм №5

ВКРВм №5,6

ВКРВм №6,3

ВКРВм №7,1

ВКРВм №8

ВКРВм №9

ВКРВм №10

ВКРВм №11,2

ВКРВм №12,5

Acoustic characteristics of fans ВКРВм

Fan
Amendments ∆Lw for calculating the sound power level [dB] in octave bands with mean geometric
frequencies, Hz
63 125 250 500 1000 2000 4000 8000
ВКРСм z=6 +1 +7 +2 0 -7 -12 -12 -21
ВКРСм z=9 -9 -8 -3 -3 -4 -9 -14 -19