Centrifugal (radial) draft fan VVR-22. Performance: 170000 m3/h; Total pressure: 9047 Pa.
VVR-22
Forced draft centrifugal fan



Purpose of Draft Fans VVR-22
Fans VVR-22 are used for conveying non-aggressive gases in technological installations of the ferrous metallurgy industry and other sectors.
General Information about Draft Fans VVR-22
Centrifugal (radial) single-inlet fans VVR-22 are designed for pneumatic transportation of non-aggressive gases. These fans are used in gas cleaning systems of various technological units and in pulverized coal preparation systems of stationary steam boilers of various capacities using medium-speed mills under overpressure.
Fans can operate with gas dust content up to 80 g/nm3, provided that the solid particles are non-abrasive and non-sticky, similar to ash-grade coal dust particles.
Use of VVR-22 fans in technological lines of other industries requires special approval.
Operating Conditions of Draft Fans VVR-22
Radial fans VVR-22 can be operated indoors and outdoors under moderate climate conditions (climatic design U, placement category 1). Fan startup is allowed when the temperature in the volute is not lower than -30 °C; the maximum allowable gas temperature at the fan inlet must not exceed 200 °C.
Casing Rotation Angles of Draft Fans VVR-22
Model | Overall dimensions, mm | ||||||
h | H | H1 | B | I | Lmax | A | |
VVR-22 | 630 | 1740 | 3790 | 4105 | 1033 | 3265 | 1512 |
Model | Connection dimensions, mm | |||||||||||||
A1 | A2 | a1 | a2 | t1 | t2 | N | N1 | n1 | n2 | K | K1 | D | D1 | |
VVR-22 | 1530 | 1000 | 1382 | 880 | 255 | 250 | 20 | 24 | 6 | 4 | 22 | 19 | 1600 | 1715 |
Model | Mounting dimensions, mm | |||||||||
N2 | K2 | C | C1 | C2 | C3 | C6 | C7 | L1 | L2 | |
VVR-22 | 8 | 28 | 1000 | 1000 | 378 | 920 | 1050 | 1050 | 2035 | 1615 |
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