Application:

Essima STFW series fan wheels are intended to be used in centrifugal fans. There is a wide range of applications where these fans are essential. Ventilation and air conditioning systems,  heating and cooling equipment or other machinery for sucking and blowing air flows. Centrifugal fans can also function as air delivery units in induced draught oil and gas burners.

Design features:

STFW series fan wheels are single inlet type with forward curved blades. Due to our most advanced equipment and unique design we managed to achieve maximum air flow characteristics. Standard material for STFW series wheels is galvanised steel. Special versions with different metal such as aluminium or stainless steel are available on request. Fan wheels can develop maximum speed operating within temperature range -15°C...+50°C. Higher temperatures +50°C...+250°C can cause material expansion, thus reduced rotational speed and steel hub are recommended. Direction of rotation is determined by looking into the suction side of the wheel and can be CCW or CW. Fan wheels are available with or without hub.

General characteristics:

  • Diameter of fan wheel ranges from Ø140 to Ø500 mm.
  • Wheel material — galvanised steel (aluminium and stainless steel are available on request).
  • There are models with and without hub.
  • Hub material — galvanised steel or low-carbon steel with black powder coating.
  • Direction of rotation — CCW or CW.
  • Model range and characteristics

  • Marking

  • Drawing

Model

Diameter of the wheel ØD, mm

Fan wheel width B, mm

Number of blades

Wheel material

Hub material

Mounting hole in a hub ød, mm

Max speed, rpm

Direction of rotation

STFW140x73

140

73

28

galvanised steel

galvanised steel

7

3000

CCW/CW

STFW160x73

160

73

32

galvanised steel

galvanised steel

7

3000

CCW/CW

STFW200x80

200

80

40

galvanised steel

galvanised steel

28

3000

CCW/CW

STFW217x90

217

90

40

galvanised steel

galvanised steel

19

3000

CCW/CW

STFW250x100

250

100

44

galvanised steel

-

-

2500

CCW/CW

STFW250x110

250

110

44

galvanised steel

galvanised steel

22

2500

CCW/CW

STFW280x100

280

100

48

galvanised steel

galvanised steel

28

2500

CCW/CW

STFW280x110

280

110

48

galvanised steel

galvanised steel

28

1700

CCW/CW

STFW320x125

320

125

36

galvanised steel

steel with black coating

19

2500

CCW/CW

STFW357x180

357

180

40

galvanised steel

-

-

2500

CCW/CW

STFW406x160

406

160

44

galvanised steel

steel with black coating

28

2000

CCW/CW

STFW500x200

500

200

48

galvanised steel

-

-

2000

CCW/CW

STFW series fan wheel marking

STFW series fan wheel (with hub)

 
STFW series fan wheel drawing

Direction of rotation

 
Rotation of fan wheel
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