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DG-6 High Pressure Pumps

DG-6 High Pressure Pumps

DG high pressure boiler feed pump

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Details

DG type pump as a high-pressure boiler feed pump is a single-casing segment multi-stage centrifugal pump, inlet and outlet are vertically upward, DGB type forging structure. The shaft seal of the pump adopts two structures of packing seal and mechanical seal. Both ends of the pump rotor are supported by sliding bearings. The axial force is balanced by the balance plate. The thrust bearing is used to balance the residual axial force.

The DG pump is used as a high-pressure boiler feed pump, but it can also be used as other clean water pumps with a conveying water temperature of 210°C or less.

Performance range:

Flow (Q): 100~580m³/h

Head (H): 740~2150m

Direction of the pump: The pump is seen from the driving direction and the pump rotates clockwise.

DG pump has four kinds of drive modes:

1.motor direct connection;

2.motor is driven by a speed-up gear box;

3.motor is driven by a speed-regulating hydraulic coupling;

4.small turbine drives.

Model Description:

1

Department design number

DG

Multi-stage boiler feed pump

-7

Pump stage

 

Param Capacity (Q) Head (H) Speed (n) Eff (η) NPSHr Shaft power (Pa) Motor
Power Type
Type m3/h m r/min % m kW kW
1DG-7 170 850 2980 75 4.5 520 800 According to user requirements 6KV
1DG-8 175 980 2980 75 4.5 624 800 According to user requirements 6KV
1DG-9 180 1100 2980 75 4.5 680 1000 YK1000-2/990 6KV
1DG-10 165 1200 2980 75 4.5 741 1000 YK1000-2/990 6KV
1DG-11 160 1320 2980 75 4.5 815 1000 YK1000-2/990 6KV
1DG-12 168 1400 2980 75 4.5 889 1000 YK1000-2/990 6KV
2DG-7 240 1080 2980 67 5 1009 1250 JK1250-2
2DG-8 270 1213 2980 75 5 1189 1250/1500 Motor / steam engine
2DG-9 200 1520 2980 67 5 1157 1500 YK1750-2 motor or YK1680-2
2DG-10 2FG(B)-10 270 1515 2980 75.6 5 1474 1600 YK1600-2 6KV
3DG-10 3FG(B)-10 440 1560 2985 82.4   2280 2500 YK2500-2/990 6KV
4DG-8C 500 1680 2985 78 12 2933 3200  
5FGB-10 570 2150 2985 81 6.5 4121 4800  
DG270-140 10 level 270 1490 2980 69 5.5 1590    
DG270-140B 10 level 320 1500 2985 76 5 1722 2000 YK2000-2 6KV
DG270-140C 10 level 360 1610 2985 79 5 1988 2300 YK2300-2 6KV
DG150-130 6 level 150 591 2950 69   350 440 YK400-2 6KV
DG150-140 12 level 150 1580 2950 69   934 1250 YK1250-2 6KV
DG250-160 10 level 250 1600 2975 72 5.5 1513 1600 YK1600-2 6KV
DG300-160x8 300 1280 2985 77 6 1402 1600 YK1600-2 6KV
DG300-160x9 300 1440 2985 77 6 1582 1800 YK1800-2 6KV
DG300-160x10 300 1600 2985 77 6 1751 2000 YK2000-2 6KV
DG300-160x11 300 1700 2985 77 6 1867 2240 YK2240-2 6KV
DG400-180C 450 1900 2985 79 12 2947 3200/4000 YK3200-2 or YK4000-2 6KV
DG450-180 450 1825 4600 78 23.5 2867 3200 YK3200-2 6KV
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