Shijiazhuang An Pump Machinery Co., Ltd |
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General
QDG series boiler feed water pump is multi-stages centrifugal pump.
It used for boiler water feed or other industry hot water supply
projects.
QDG series boiler feed water pump matches the performance,
technical requirement and testing method for the international
boiler projects.
This series boiler pump meet the international standard, with the
feature of small volume, good performance, stable and reliable
operation, and high efficiency. Besides, it is the best choice for
the hot water supply projects.
It included horizontal boiler feed water pump and vertical boiler
feed water pump.
Performance Range
Flow rate: 3~500m3/h
Head: 70~650m
Pressure: 7~65Bar
Speed: 1450~2950rpm
Max Eff: 90%
Construction
Item | Part Name | Item | Part Name | Item | Part Name |
1 | Column resilient coupling | 7 | Middle section | 13 | Balancing sleeve |
2 | Shaft | 8 | Impeller | 14 | Balancing disk |
3 | Roller bearing | 9 | Diffuser | 15 | Packing box |
4 | Packing gland | 10 | Diffuser sleeve | 16 | Cover of water cooling room |
5 | Suck-in section | 11 | Take-up bolt | 17 | Bearing |
6 | Seal ring | 12 | Discharge section |
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Performance Data Sheet
Pump Type | Flow | Head | Power | Speed |
QDG 6-25 | 3.75-7.5 | 73.5-306 | 4-11 | 2950 |
QDG 12-25 | 7.5-15 | 69-338.4 | 5.5-22 | 2950 |
QDG 12-50 | 7.5-15 | 139.5-648 | 18.5-75 | 2950 |
QDG 25-30 | 15-30 | 82.5-340 | 15-45 | 2950 |
QDG 25-50 | 15-30 | 15.78-618 | 22-110 | 2950 |
QDG 46-30 | 30-55 | 81-340 | 22-75 | 2950 |
QDG 46-50 | 30-55 | 138-666 | 37-132 | 2950 |
QDG 85-45 | 55-100 | 78-459 | 37-160 | 2950 |
QDG 85-67 | 55-100 | 183-666 | 90-250 | 2950 |
QDG155-67 | 100-185 | 177-684 | 132-400 | 2950 |
QDG280-43 | 185-335 | 114-423 | 160-450 | 1480 |
QDG280-65 | 185-355 | 372-680 | 500-800 | 1480 |
QDG450-60 | 335-500 | 171-650 | 360-1050 | 680 |