Roof fans ВКРМ

ВКРм №3,15
ВКРм В (В1, P) №4
№5
№6,3
№8
№10
№12,5

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Fans  of  ВКРм type are  made  of  carbon  steel  and  designated  for  removal  of  non-explosive mixtures with the temperature below 50°C, wherein content of dust and other solid admixtures does not exceed 100 mg/m3 and there are no adhesive substances and fibrous materials, from the premises of industrial and public buildings.
Fans ВКРм-В(explosion-protected fans made of mixed metals) are designated for removal of gassteam-air mixtures of IIA and IIB categories, whichdo not cause accelerated corrosion of carbon steeland aluminum (rate of corrosion – not more than 0,1mm a year), wherein content of dust and other solid admixtures  does  not  exceed  0,1  g/m3,  and  there  are  no   substances and  fibrous  materials, from  the premises of industrial and public buildings.
Fans ВКРм-Вcannot be applied for displacement of gas-dust-airmixtures from the process units, in which explosive substances are heated above the temperature of their spontaneous combustion or are exposed to an excess pressure.
Smoke  exhaust  fan  ВКРм is  a  low-pressure  one-side  suction  fan.  Impeller  blades  are  bent backwards.

Specifications of roof fans ВКРм

Fan №
Motor power,
KW
Rate of impeller
rotation, min-1
Capacity 103 х m3/hour
Static
pressure, Pa
Fan weight,
kg
№3,15 исп-1 0,18 975 0,7-1,4 110-0 30
№4 исп-1 0,37 915 1,4-3,3 160-0 55
1,1 1410 2,1-5,0 380-0 60
№5 исп-1 0,75 915 2,8-6,5 250-0 65
2,2 1425 4,3-10,1 600-0 72
№6,3 исп-1 2,2 950 6,0-13,8 430-0 115
5,5 1435 8,9-20,4 980-0 144
№8 исп-1 3,0 750 9,4-22,0 430-0 198
5,5 960 12,6-27,5 810-0 211
№10 исп-1 5,5 720 19,4-39,6 590-0 330
15 970 25,9-53,3 1040-0 402
№12,5 исп-1 4 370 11,0-35,0 270-0 570
5,5 470 14,0-45,0 430-0 570
18,5 730 20,8-67,0 960-0 655
№12,5 исп-5 4 415 12,3-39,0 340-0 705

 

Mounted dimensions of roof  fans ВКРм

Overall and mounting dimensions of ВКРм №,15-№10 option1

Fan No. D D2 D3 d d2 B B2 B3 H h N
ВКР-3,15 500 345 290 12 M6 465 650 500 515 205 4
ВКР-4 595 430 380 16 M8 620 895 640 695 265 8
ВКР-5 595 490 430 16 M8 620 895 640 750 320 8
ВКР-6,3 772 660 595 16 M8 910 1180 880 945 395 8
ВКР-8 1072 850 770 16 M8 1085 1340 1050 1080 470 8
ВКР-10 1272 1040 920 18 M12 1385 1735 1350 1390 625 8

 

 

Aerodynamic characteristic of fans ВКРм

№3,15 исп-1

№4 исп-1

№5 исп-1

№6,3 исп-1

№8 исп-1

№10 исп-1

№12,5 исп-1

№12,5 исп-5

Acoustic characteristics of fans ВКРм

Fan No.
n,
min¯¹
The value of Lpi, dB in the octave band f, Hz LpA, дБА
63 125 250 500 1000 2000 4000 8000
3,15 975 67 70 71 68 64 62 52 45 70
4 915 69 74 76 81 74 68 57 50 80
5 915 73 81 83 84 80 75 65 56 85
6,3 950 76 83 87 92 87 80 72 64 92
8 710 88 93 89 90 87 81 73 69 92
10 700 89 93 89 91 87 82 73 69 93
950 93 97 98 99 96 86 79 74 103
12,5 870 85 89 90 87 81 73 69 60 88
470 92 95 96 93 87 79 74 66 94
750 96 99 100 99 97 87 79 75 104