OEM No/Model: DG25-50*3
DG industry boiler feed water pump is single suction multistage hot water centrifugal pump. DG boiler feed water pump is used to convey clean water or other liquids with similar physical and chemical properties to clean water. Liquids temperature is no higher than 105 DegC. DG feed water pump is suitable for small boiler feed water or transfer of hot water and other similar medium to hot water.
The suction inlet and discharge outlet of the multistage pump are vertically upward and the axial force of the rotor is balanced by the balancing plate. The shaft seal may be either a packing seal or a mechanical seal. The bearings of the rotor are lubricated by plain bearings with thin oil (for DG85-67, DG85-80, DG55-67) and other models have rolling bearing.
Flow(Q):6 to 346m3/h
Head102-1050m
Rotation direction: From the motor end, the pump rotates clockwise.
Material of main parts: Cast iron or cast steel (for DG8580, 200DG43)
Supply pump, motor, check valve, gate valve, base.
Application:
DG boiler feed water pump is Suitable for medium and low pressure boiler water supply, factory, city high lift water transmission. DG pump is used to convey clean water or liquid with similar physical and chemical properties to clean water, the temperature of conveying medium: -20 to 105(except DG85-80 and 200DG43, the temperature of conveyed medium is -20to 150), the inlet pressure of the pump shall not exceed 0.6Mpa (6kgf/cm2).
DG25-50
Stage | Flow | Head | Speed | Efficiency | Shaft power | Motor power | Impeller | Pump | Motor | |||
H | n | (%) | N | NPSHr | Diameter | weight | Weight | |||||
(m) | (r/min) | (kw) | (m) | D | (kg) | (kg) | ||||||
m3/h | L/s | Power(kw) | Model | (mm) | ||||||||
2 | 15 | 4.17 | 103 | 2950 | 44 | 9.5 | 18.5 | Y160L-2 | 2.4 | 196 | 261.2 | 147 |
100 | 12.6 | |||||||||||
96 | 13.5 | |||||||||||
3 | 25 | 6.94 | 154.5 | 54 | 14.3 | 22 | Y180M-2 | 2.7 | 280 | 180 | ||
150 | 18.9 | |||||||||||
144 | 20.3 | |||||||||||
4 | 28 | 7.78 | 206 | 54 | 19.1 | 30 | Y180M-2 | 2.8 | 298.8 | 240 | ||
200 | 25.2 | |||||||||||
192 | 27.1 | |||||||||||
5 | 257.5 | 23.9 | 37 | Y200L2-2 | 317.7 | 260 | ||||||
250 | 31.5 | |||||||||||
240 | 33.9 | |||||||||||
6 | 309 | 28.6 | 45 | Y225M-2 | 336.5 | 325 | ||||||
300 | 37.8 | |||||||||||
288 | 40.7 | |||||||||||
7 | 360.5 | 33.4 | 55 | Y250M-2 | 355.3 | 395 | ||||||
350 | 44.1 | |||||||||||
336 | 47.5 | |||||||||||
8 | 412 | 38.2 | 75 | Y280S-2 | 374.2 | 500 | ||||||
400 | 50.4 | |||||||||||
384 | 54.2 | |||||||||||
9 | 463.5 | 43 | 75 | Y280S-2 | 393 | 500 | ||||||
450 | 56.7 | |||||||||||
432 | 61 | |||||||||||
10 | 515 | 47.7 | 75 | Y280S-2 | 411.8 | 500 | ||||||
500 | 63 | |||||||||||
480 | 67.8 | |||||||||||
11 | 566 | 52.5 | 90 | Y280M-2 | 430.7 | 550 | ||||||
550 | 69.3 | |||||||||||
528 | 74.6 | |||||||||||
12 | 618 | 57.6 | 110 | Y315S-2 | 449.5 | 875 | ||||||
600 | 75.6 | |||||||||||
576 | 81.4 |
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