1 BKD Type Roots Blower
BKD series is a dual stage roots blower, which has two BKW blowers in series, and exceeds the upmost
pressure comparing with single one, also there is a middle cooling system between the first and second
stage, it ensures the standard temperature of the airflow to the second blower.
2 Inlet airflow ( m3 / min ) and shaft power ( KW ) at different conditions
| | Port Dia | Speed | Inlet airflow(m3/min) and shaft power(KW) at different conditions | Cooling water |
| 1.0kgf/cm2 | 1.2kgf/cm2 | 1.4kgf/cm2 | 1.5kgf/cm2 |
| 10000mmH2O | 12000mmH2O | 14000mmH2O | 15000mmH2O |
| rpm | 0.098Mpa | 0.118Mpa | 0.137Mpa | 0.147Mpa |
| Ⅰ | Ⅱ | m3/min | KW | m3/min | KW | m3/min | KW | m3/min | KW | L/min |
| BKD-5000 | 200(8") | 850 | 850 | 32.23 | 12.11 | 32.72 | 18.99 | 30.93 | 25.36 | 29.48 | 29.05 | 90 |
| 1000 | 1000 | 43.73 | 14.71 | 41.41 | 23.06 | 39.61 | 30.80 | 38.17 | 35.28 |
| 1150 | 1150 | 52.41 | 17.30 | 50.10 | 27.12 | 48.30 | 36.23 | 46.85 | 41.50 |
| 1250 | 1250 | 61.10 | 19.90 | 58.78 | 31.19 | 56.99 | 41.67 | 55.54 | 47.73 |
| 1400 | 1400 | 66.89 | 21.63 | 64.58 | 33.90 | 62.78 | 45.29 | 61.33 | 51.88 |
3 Boundry dimension of BKD-5000
Standard accessory include: inlet and outlet silencer, pressure gage, base-frame, blower's pulley, motor's
pulley, belt, belt guard, relief valve, check valve.
4 Other accessaries
(1) YUSV Type unloaded start valve
(2) Multi-function BDFZ-L Type Enclosure
- Unload start valve working principle
This valve is mainly used in the pipeline for blower, compressor and screw type blower. When blower start,
the air will flow through the valve, and the blower will working without load, after a while, the valve will close
because the pressure difference in the pipeline and out, so it realize start without load for the blower, and
can impacting the equipment and motor.
- Main charcateristics of unload start valve
- Being mechanical structure and reasonable design, without conk out.
- There is no need for bypass and electric executive system. Being low cost.
- It substitute for the security valve, and protect startup in severe condition.
- Being easy mounting and maintance.
- Main charcateristics of enclosure
- Using steel and sponge for sound insulation, and with sound absorbing material embeded in it, and can reduce noise effectively.
- There four doors, and each side can open thoroughly, which is convenient for daily maintanance.
- Adopting detachable structure, which is easy for transport.
- Compact structure for less floor space.
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BKD Type Large Ones Aeration Dual Stage Roots Blower 850-140 Rpm for broad applications Images
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