B-Tohin Machine (Jiangsu) Co., Ltd.
Professional Manufacturer of Various Kinds of Blowers
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Sewage Treatment Three Lobe Roots Blower, backwashing air blower
About BK
BK Roots Blower is a kind of product designed and manufactured according to the national standards.
With the technology imported from USA, this type blower is of matured and stable performance.
Specifications:
| Model | BK6008 |
| Air capacity | 6.69-20.63m3/min |
| Discharge differential pressure | 10-80KPA |
| Rotary speed | 850-1800rpm |
| Motor type | 4KW-37KW 380/400/415/440V, 3PHASES, 50/60HZ, frequency motor also available |
| Motor brand | Standard: Siemens Beide or Wannan motor Siemens and ABB motor for your option |
| Installation type | Standard: horizontal type. Vertical type available for your option |
| N.W. of blower without motor | 290 kg |
| Packing size Approx. | 1.8*1.2*2m (length*width*height) |
Features:
1. Helical type timing gears for smooth operation
2. Compact, flexibility in installation gives users more choices.
3. Integral structure of impeller and shaft to avoid shortcomings of the split structure
4. Adopt imported oil seals made from fluoro rubber with good wear resistance and high-temperature resistance.
5. Low noise, small vibration and economical energy consumption.
Parameter sheet
| Model | Port Dia (MM) | Speed | Inlet capacity (m3/min)and shaft power (KW) | |||||||
| 0.1kgf/cm2 | 0.2kgf/cm2 | 0.3kgf/cm2 | 0.4kgf/cm2 | |||||||
| 1000mmH2O | 2000mmH2O | 3000mmH2O | 4000mmH2O | |||||||
| 0.01Mpa | 0.02Mpa | 0.03Mpa | 0.04Mpa | |||||||
| rpm | m3/min | KW | m3/min | KW | m3/min | KW | m3/min | KW | ||
| BK6008 | 125(5") | 850 | 8.93 | 2.60 | 8.29 | 4.58 | 7.80 | 6.16 | 7.38 | 7.75 |
| 1000 | 10.78 | 3.05 | 10.13 | 5.39 | 9.64 | 7.24 | 9.22 | 9.11 | ||
| 1150 | 12.62 | 3.51 | 11.98 | 6.20 | 11.49 | 8.33 | 11.07 | 10.48 | ||
| 1250 | 13.85 | 3.82 | 13.21 | 6.74 | 12.72 | 9.05 | 12.30 | 11.39 | ||
| 1400 | 15.70 | 4.28 | 15.06 | 7.55 | 14.57 | 10.14 | 14.15 | 12.76 | ||
| 1500 | 16.93 | 4.58 | 16.29 | 8.08 | 15.80 | 10.86 | 15.38 | 13.67 | ||
| 1650 | 18.78 | 5.04 | 18.14 | 8.89 | 17.65 | 11.95 | 17.23 | 15.04 | ||
| 1800 | 20.63 | 5.50 | 19.99 | 9.70 | 19.49 | 13.04 | 19.08 | 16.40 | ||
| Model | Port Dia (MM) | Speed | Inlet capacity (m3/min)and shaft power (KW) | |||||||
| 0.5kgf/cm2 | 0.6kgf/cm2 | 0.7kgf/cm2 | 0.8kgf/cm2 | |||||||
| 5000mmH2O | 6000mmH2O | 7000mmH2O | 8000mmH2O | |||||||
| 0.05Mpa | 0.06Mpa | 0.07Mpa | 0.08Mpa | |||||||
| rpm | m3/min | KW | m3/min | KW | m3/min | KW | m3/min | KW | ||
| BK6008 | 125(5") | 850 | 7.02 | 9.59 | 6.69 | 11.44 | ||||
| 1000 | 8.87 | 11.29 | 8.53 | 13.46 | 8.23 | 15.11 | 7.96 | 17.19 | ||
| 1150 | 10.71 | 12.98 | 10.38 | 15.48 | 10.07 | 17.38 | 9.80 | 19.77 | ||
| 1250 | 11.94 | 14.11 | 11.61 | 16.82 | 11.30 | 18.89 | 11.03 | 21.49 | ||
| 1400 | 13.79 | 15.80 | 13.46 | 18.84 | 13.15 | 21.16 | 12.88 | 24.07 | ||
| 1500 | 15.02 | 16.93 | 14.69 | 20.19 | 14.38 | 22.67 | 14.11 | 25.79 | ||
| 1650 | 16.87 | 18.62 | 16.54 | 22.21 | 16.23 | 24.94 | 15.96 | 28.36 | ||
| 1800 | 18.72 | 20.31 | 18.39 | 24.22 | 18.08 | 27.20 | 17.81 | 30.94 | ||
Structure of blower main body
| No. | Part Name | Qty. |
| No. | Part Name | Qty. |
| No. | Part Name | Qty. |
| 1 | Footing | 2 |
| 9 | Left end cover | 1 |
| 17 | Oil tank | 1 |
| 2 | Hexagon bolt | 4 |
| 10 | Round pin | 4 |
| 18 | Gear | 2 |
| 3 | Antidust seal | 1 |
| 11 | Casing | 1 |
| 19 | Key | 2 |
| 4 | Drive impeller | 1 |
| 12 | Oil seal | 4 |
| 20 | Axial sleeve | 2 |
| 5 | Bearing | 2 |
| 13 | Right end cover | 1 |
| 21 | Bearing | 2 |
| 6 | Driven impeller | 2 |
| 14 | Bolt | 16 |
| 22 | Bearing plate | 2 |
| 7 | Dust cup | 1 |
| 15 | Breather | 1 |
| 23 | Adjustable pad | several |
| 8 | Grease nipple | 2 |
| 16 | Bolt | 8 |
| 24 | Magnetic nut | 1 |
Assembling drawing of blower package
Standard supply of scope
1. shaft blower
2. pressure relieve valve
3. check valve
4. inlet silencer(with air filter)
5. outlet silencer
6. public base (with belt cover)
7. rubber flexible joint and shock pad
8. motor pulley
9. pressure gage
10. V-belt
11. bolts and nuts and other connection parts
12. electric motor