China High efficiency professional Cow-House Exhaust Fan ventilation fan blower fan

(Also called wall mount exhaust fan poultry house fan,wall mounted cooling fan,negative pressure fan,algriculture ventilator,exhaust fan,poultry fan for green house,square exhaust fan,farm fan,wall installed fan,stainless steel industrial wall mounted fan and so on)

Use the principle of negative pressure cross-ventilation, to bring the fresh air in from the opposite of the installation position——door or window naturally, and extract the indoor hot gas rapidly.Any improper ventilation problem can be solved. The cooling and ventilation efficiency can reach as high as 90%-97%.

Specification

Blade diameter(mm)

Flow rate(m3/h)

Power(kw)

Noise(A)

Size (mm)

BF30-2.5

250

960

0.025

54

360*360*220

BF30-2.8

280

1331

0.025

54

400*400*220

BF30-3.15

315

1895

0.04

55

430*430*230

BF30-3.55

355

2712

0.09

56

465*465*240

BF30-4

400

3879

0.18

61

510*510*250

BF30-4.5

450

5500

0.25

63

560*560*270

BF30-5

500

7500

0.37

67

630*630*290

BF30-7.7

770

20000

0.55

55

900*900*400

BF30-9.3

930

34000

0.75

65

1060*1060*400

BF30-11.1

1110

39000

0.75

70

1220*1220*400

BF30-12.5

1250

46000

1.1

75

1380*1380*400

1, frame: frames are made of galvanized board, thickness 1.0mm, galvanizing layer 180g/square meter.

2, Blade: 6 pieces, material 430/201 stainless steel, mirror face.

3, Impeller, casting aluminum alloy impeller.

4, Bearing of impeller :permanently sealed bearing, size 633313.

5, Venture: galvanized board, thickness 1.0mm.

6, Blade tip clearance: 25mm, mirroe face.

7, Inlet wind protecting net: spraying paint steel wire, thickness 2.8mm.

8, Electrical motor: aluminum alloy frame motor, 380V/220/415V, 1.1KW/0.75KW(1.5HP/1HP), 50HZ/60HZ, 3PH/Single Phase, 4-pole speed, 1410r/m, IP55, class F, efficiency 90%, top/foot mounted,

9, Motor bearing, :national grade.

10, Belt: V-belt and A-belt (Made-in-China and Japan brand Mitsuboshi).

11,Shutters, galvanized board, 0.8 mm thickness while the middle piece thickness 1.0mm. Galvanizing layer ,120g/square meter.

12, Opening system, nylon material, brown color and black color.

13, Rivets: aluminum alloy and stainless steel rivets.

14, Cable: 1 meter long, strong robber wire.