Medium pressure fans VSD
Medium pressure fans VSD

Medium pressure radial fans VSD-2, VSD-3,15, VSD-4,5, VSD-6,3 are designed for installation in systems of pneumatic transport for grain and products of its processing, in equipment aspiration systems as a thruster to move air and other gas mixtures, which do not contain sticky substances, fibrous materials, with dust and other solid impurities content max. 100 mg/ m3.


Fans are produced in accordance with third category of National State Standard GOST-15150, climate version “У” (temperate climate).

Medium pressure radial fans VSD-6,3, VSD-6,3P, VSD-6,3-VC1446 are designed for installation in systems of pneumatic transport for grain and products of its processing, in equipment aspiration systems as a thruster to move air and other gas mixtures, which do not contain sticky substances, fibrous materials, with dust and other solid impurities content max. 100 mg/ m3.


Fans are produced in accordance with third category of National State Standard GOST-15150, climate version “У” (temperate climate).


Specifications

Parameter title

VSD-6,3

VSD-6,3P

VSD-6,3-VC1446

1. Capacity, m3/hour:

  -  nominal condition

  -  operating condition

2. Pressure, Pa

  -  nominal condition

  -  operating condition

3.  Coefficient of efficiency max.

4. Impeller speed, rpm

5.  Rated power, kW

6.  Impeller diameter, mm

7.  Suction port diameter, mm

8. Overall dimensions, mm

length

width

height

9.Weight, kg


 

6590

5500-7600

 

1540

1450-1650

0,71

1440

5,5

630

350

      

986

767

1005

170

 


7500

6800-9000

 

1800

1750-1850

0,71

1800

7,5/11*

630

350

       

986

930

1005

215/255*




6590

5500-7600

 

9000

6000-12000

0,73

700

4,0

630

630

      

1013

1139

1110

183,2

incl.

EM 52,2 kg

        *For 7,5 kW air capacity is taken by the lower limit, for 11 kW – by the upper limit. Fans are powered by a three-phase network (with zero wire) of alternating current 380 V, frequency 50 Hz.

          Specified aerodynamic characteristics are provided under normal atmospheric conditions (density 1,2 kg/m3, barometric pressure 101,34 kPa, temperature 200С above zero and relative humidity 50%). When fans are operating under an elevated temperature or in highlands a significant reduction of pressure is possible.


Structure and Functioning


Depending on the version fans consist of the following parts:  

- plinth, scroll cover, wheel (impeller), inlet nozzle and electric motor (fig.1);  

- plinth, scroll cover, wheel (impeller), inlet nozzle, electric motor and belt transmission (1a).


Plinth consists of scroll cover and sub-frame. Impeller is mounted directly on the electric motor shaft or through belt transmission.


Fan operational principle lies in the movement of air due to transmission of impeller rotational energy.


If the impeller rotates clockwise when viewed from the motor side, it is a right-hand fan, if it rotates against – the left-hand version.


Characteristics of pressure dependence on air consumption under normal conditions are shown on the graph (fig.2).