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[China]
Trade Verify
Address: No.69 Xijiu Road, Industrial Park for Environmental SCI & TECH, Yixing, Jiangsu,China
Contact name:Iris Xu
B-Tohin Machine (Jiangsu) Co., Ltd. |
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Verified Suppliers
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About BK3
BK Roots Blower is a kind of product designed and manufactured
according to the national standards. With small bore size, BK40 can
meet the demands of small capacity application.
Specifications:
| Model | BK40 |
| Air capacity | 0.53m3/Min-2.2m3/Min |
| Discharge differential pressure | 10-80KPA |
| Rotary speed | 1750rpm-3000rpm |
| Motor type | 1.5KW-5.5KW 380/400/415/440V, 3PHASES, 50/60HZ |
| 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 | 60kg |
| Packing size Approx. | 1.25*0.85*1.28m (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 without shortcomings of the split structure blower 4. Adopt imported oil seals made from fluoric rubber with perfect wear resistance and high-temperature resistance. 5. Low noise, low vibration and energy consumption. |
Parameters
| Port Dia | Speed | Inlet airflow(m3/min)and shaft power(KW)at different conditions | |||||||||||||||
| 10kpa | 20kpa | 30kpa | 40kpa | 50kpa | 60kpa | 70kpa | 80kpa | ||||||||||
| rpm | m3/min | KW | m3/min | KW | m3/min | KW | m3/min | KW | m3/min | KW | m3/min | KW | m3/min | KW | m3/min | KW | |
| 40(1.5'') | 1750 | 1.30 | 0.96 | 1.10 | 1.12 | 0.95 | 1.29 | 0.83 | 1.46 | 0.72 | 1.63 | 0.63 | 1.80 | 0.53 | 1.97 | ||
| 1850 | 1.33 | 1.01 | 1.13 | 1.19 | 1.00 | 1.37 | 0.90 | 1.55 | 0.78 | 1.72 | 0.70 | 1.90 | 0.60 | 2.08 | 0.52 | 2.26 | |
| 2050 | 1.60 | 1.12 | 1.43 | 1.32 | 1.28 | 1.52 | 1.17 | 1.71 | 1.07 | 1.91 | 0.97 | 2.11 | 0.87 | 2.31 | 0.78 | 2.50 | |
| 2400 | 1.83 | 1.31 | 1.73 | 1.54 | 1.57 | 1.77 | 1.45 | 2.01 | 1.35 | 2.24 | 1.27 | 2.47 | 1.18 | 2.70 | 1.10 | 2.93 | |
| 2750 | 1.97 | 1.50 | 1.82 | 1.77 | 1.70 | 2.03 | 1.60 | 2.30 | 1.50 | 2.56 | 1.42 | 2.83 | 1.30 | 3.09 | 1.20 | 3.36 | |
| 3000 | 2.20 | 1.64 | 2.15 | 1.93 | 1.97 | 2.22 | 1.88 | 2.51 | 1.82 | 2.80 | 1.72 | 3.08 | 1.62 | 3.77 | 1.53 | 4.00 | |
Working Principle
Roots blower is a cubage blower, and it discharges a fixed amount
of air in proportion to its rotation speed. Every rotation, there
is two lobes to finish three times absorbing and dischargeing air.
Compared with two lobes blower, it is of less air pulses, smaller
load change, higher strength, lower noise and vibration.
Two paraller shafts have three lobes each, all the lobes keep small
clearance with each other and housing inside. Every lobes
rotatiomn, a certain air will be absorbed at inlet and transfeered
form the housing inside surface to blower's diacharge port.
Two shafts will be turned by the timing gears, no any touching
between lobes, so it can be turned at high speed without any
lubrication inside. It has the following chaaracteristics: simply
configuration; running smoothly;good performance stabilization. It
has been widely applied in various industries.
