Acoustic Cabinet Fans - CVB Series

  Features

  • The Centribox CVB range of acoustic cased fans are specifically designed to provide ventilation solutions for noise sensitive environments and incorporate direct-drive low pressure centrifugal fans.
  • Typical installations would include commercial offices, restaurants and cafes, libraries and public buildings etc.

  Construction 

  • The fan casings are manufactured from heavy gauge galvanised sheet steel and internally lined with a dense “non-flammable” Melinex (M1 Type) acoustic insulation. All models are supplied, as standard, with circular duct connection flanges on the discharge and inlet panels. A variety of different connectors are available.
  • The product is designed to enable the casing side panels to be removed for access to the motor/impeller assembly without removing the fan case from the ducting.
  • All models are supplied with four mounting feet and an industrial grade cable entry gland (located on discharge panel side) to facilitate installation and wiring.
  • All models incorporate double inlet direct-drive low pressure centrifugal fans (with scroll) with galvanised steel forward curved impellers. All fan assemblies are fitted to the casing discharge panel using a rigid support frame with two anti-vibration mountings.

  Motors 

  • All motors are factory matched and directly mounted to the scrolled fan casing using a rigid support frame.
  • The complete motor, impeller and fan scroll assembly is then dynamically balanced to ISO 1940 standards.
  • The CVB range is available in Single Phase, 230V 50Hz, with four and six pole speed motors, supplied with capacitor and Thermal Overload Protection (internal automatic operation for all single-phase models).

  Dimensions

 
Model CVB A B C G J K M
180/180 455 441 408 325 436 422 250 245
240/240 565 521 508 400 536 532 355 282
270/200 605 581 558 450 586 572 400 322
320/240 685 669 608 500 636 652 500 376
320/320 685 669 608 500 636 652 500 376

  Technical Data

    Motor     Max abs   Sound  
    Power   Insulation Single Phase Max, air presure  
Model CVB r.p.m. abs W Protection class 50Hz 230V (A) vol m3/hr level dB(A) Kg
4 POLE
4180/180 - N-150W 1400 150 IP-10 B 1.3 1400 58 23
4-240/240 - N-370W 1400 370 IP-44 F 3.5 2640 65 38
4-270/200 - N-370W 1400 370 IP-44 F 4.2 3160 65 44
6 POLE
320/240 - N550W 900 550 IP-44 F 5.8 5400 66 55
320/320 - N-550W 900 550 IP-44 F 5.8 5670 65 58

  Performance

  Sound Data

Model CVB  63 125  250  500  1000  2000  4000  8000 
4-150/180 1/5    Disc  31 37 43  49  54  53  50  43 
Inlet  27 38 40 39  42  42  41  34 
Rad  27 36 31  25  23  18  19  14 
4-240/240 1/2   Disc  34 44 52  55 61 59 56 47 
Inlet  29 45 50 45 48 49 47 39 
Rad  29 43  42  31  29  25  25  19 
4-270/200 1/2    Disc  30 41 50 57 60 60  57 50
Inlet  26 43 47 47 48 50 48 42 
Rad  26 41  39  33  29  26  26  22 
320/240 3/4    Disc  35 49 53 57 60 62 58 51 
Inlet  31 51 50 47 48 51 49 43 
Rad  31 49  42 33  29  27  27  23 
320/320 3/4  Disc  34 46 51  59 59 60 57 50 
Inlet 30 48 49 49 46 49 47 41
Rad  30 46  41  35  27  25  25 21 

Autocad

                                                       
CVB 180 180 CVB 240 180 CVB 270 200                                                      
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CVB 320 240  

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