Medium-pressure fans ВР 5-35, 5-45

ВР 5-35, 5-45 №3,55
ВР 5-35, 5-45 (Ж) №4
ВР 5-35, 5-45 (К) №4,25
ВР 5-35, 5-45 (КЖ) №8
ВР 5-35, 5-45 (В) №8,5
ВР 5-35, 5-45 (ВЖ)
ВР 5-35, 5-45 (ВК)
ВР 5-35, 5-45 (ВКЖ)
ВР 5-35, 5-45 (В2)

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General information

• One-side suction
• Scroll turning shell
• Blades bent backward
• Quantity of blades: 9 (ВР 5-35), 10 (ВР 5-45)
• Direction of rotation – right-hand and left-hand
Fans  ВР 5-35, 5-45 are applied for the stationary systems  of ventilating, air-conditioning and air-heating,  pneumatic  transport  in  milling  room  of flour  milling  plants  and  for  other  sanitation purposes.
Fans are operated in the conditions of moderate (У) and tropical (Т) climate of the second and third category of location as per GOST 15150-69. Ifmotor is protected against weather impacts, it if allowed to use fans in the conditions of moderate climate of the first category of location.
Fans may be operated in seismically dangerous zones. Ambient temperature: -40°С to +40°С (45° Сfor the fans designated for tropical climate).
Simultaneous operation of several fans  is not recommended  without net elements. If fan is operated for suction, baffle is required at an output section.

Specifications of centrifugal fans ВР 5-35, 5-45

 

 

Electric motor 
Parameters in operating area
Vibration isolators
 

 

Fan weight, 
kg
 

 

Fan 
volume, 

m3/ h

Standard 
size 
Power, 
KW
Rate of 
rotation, 
min
Capacity 

103 х m3/hour

Total 
pressure, 
Pa
Type Q-ty
ВР 5-35 №3,55 АИР 71 А2 0,75 2850 0,41-0,98 1900-1600 ДО38 4 34 0,1
АИР 71 В2 1,1 2850 0,41-1,8 1900-1250 ДО38 4 35 0,1
ВР 5-35 №4 АИР 80 В2 2,2 2850 0,86-2,5 2780-1800 ДО42 5 106 0,2
ВР 5-35 №8 АИР 132 М4 11 1460 3,9-12,5 2000-3000 ДО42 5 350 1,6
ВР 5-35 №8,5 АИР 132 М4 11 1460 4,2-10,5 3300-2620 ДО42 5 500 1,6
ВР 5-45 №4,25 АИР 100 S2 4 2850 1,2-5,0 2750-1700 ДО39 4 87 0,4
ВР 5-45 №8 АИР 132 М4 11 1460 3,8-11,5 2600-2100 ДО42 5 538 1,9
ВР 5-45 №8,5 АИР 160 S2 15 1460 5,2-17,5 3250-2250 ДО42 5 434 2,2

 

Overall dimensions of radial fans ВР 5-35, 5-45

Overall dimensions of the fans ВР 5-35, 5-45

Fan No. Dimension , mm
Пр 135˚, Лев 135˚ Пр 270˚, Лев 270˚ Пр 315˚, Лев 315˚
B b H B b H B b H
5-35 №3,55 642 255 281 498 268 242 642 255 229
5-35 №4 707 281 310 550 295 268 708 283 282
5-35 №8 1602 648 739 1223 693 601 1602 644 556
5-35 №8,5 1602 648 739 1223 693 601 1602 644 556
5-45 №4,25 825 328 371 632 349 307 825 328 286
5-45 №8 1604 647 566 1237 687 606 1604 647 728
5-45 №8,5 1604 647 566 1237 687 606 1604 647 728
Fan No. Dimension , mm
Пр 0˚, Лев 0˚ Пр 45˚, Лев 45˚ Пр 90˚, Лев 90˚
B b H B b H B b H
5-35 №3,55 560 242 510 510 229 388 498 268 318
5-35 №4 638 268 564 564 253 428 590 295 295
5-35 №8 1421 601 1295 1295 556 955 1223 693 820
5-35 №8,5 1421 601 1295 1295 556 955 1223 693 820
5-45 №4,25 727 307 658 658 286 497 632 349 420
5-45 №8 1410 606 1294 1294 566 957 1237 687 768
5-45 №8,5 1410 606 1294 1294 566 957 1237 687 768

Overall dimensions of fans ВР5-35, 5-45 option 1

Fan No. H h L1 Lmax B A D1 D Dk a a1 a2
5-35 №3,55 565 335 125,5 425 560 207 182 140 375 158 200 112
5-35 №4 707 410 165 554 654 233,5 219 175 412 175 219 219
5-35 №8 1485 955 217 860 1425 575,5 405 349 813 399 448 375
5-35 №8,5 1485 955 217 860 1425 575,5 405 349 813 399 448 375
5-45 №4,25 758 475 181 650 727 274 265 221 450 220 255 110
5-45 №8,5 1465 915 277 1085 1410 530 497 444 865 446 497 375
Fan No. b b1 b2 d d1 d2 C C1 C2 C3 n n1 n2
5-35 №3,55 97 141 * 11,5 11,5 11,5 315 * 285 56,5 8 6 4
5-35 №4 138 179 * 11,5 11,5 11,5 476 * 280 176 8 8 4
5-35 №8 247 300 125 11,5 11,5 11,5 643 * 571 60 8 12 4
5-35 №8,5 247 300 125 11,5 11,5 11,5 643 * 571 60 8 12 4
5-45 №4,25 179 217 110 11,5 11,5 11,5 470 * 360 30 8 8 4
5-45 №8,5 351 405 250 11,5 11,5 18 447,5 447,5 610 230 12 14 6

 

Aerodynamic characteristics of fans ВР 5-35, 5-45

ВР 5-35 №3,55

ВР 5-35 №4

ВР 5-35 №8

ВР 5-35 №8,5

Аэродинамические характеристики вентиляторов BP 5-45:

ВР 5-45 №4,25

ВР 5-45 №8

ВР 5-45 №8,5

Acoustic characteristics of fans  ВР 5-35, 5-45

 

  Fan No.                    

n, 
мин¯¹
The value of Lpi, dB in the octave band f, Hz LpA, дБ
63 125 250 500 1000 2000 4000 8000
5-35 №3,55 2850 92 93 91 92 90 86 83 80 96
5-35 №4 2850 95 96 94 95 93 89 86 83 99
5-35 №8 1460 106 107 105 106 104 100 97 94 110
5-35 №8,5 1460 105 106 104 105 103 99 96 93 109
5-35 №4,25 2850 99 100 98 99 97 93 90 87 103
5-35 №8 1460 109 110 108 109 107 93 90 87 113
5-35 №8,5 1460 110 111 111 109 110 108 94 91 88 114