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DG-1 Sub-High Pressure Pumps

DG-1 Sub-High Pressure Pumps

DG type high pressure boiler feed pump

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Details

The DG type high-pressure boiler feed pump is a single-shell segmented multi-stage off-pump. The pump is double-supported. The inlet and outlet are vertically upward. The bearings are sliding bearings, lubricated with thin oil, and equipped with an oil-stripping ring. Axial force balance drum mechanism, residual axial force by a pair of angular contact ball bearings, shaft seals with soft packing seals, mechanical seals can also be used. It is used for boiler feed water in thermal power plants and can also be used for cleaning water pumps. The direction of rotation of the pump is clockwise rotation in the direction of power transmission.

Performance range:

Flow: 36~180m³/h  

Head: 409~1056m  

Medium temperature: 160≤℃

Model meaning:

DG

Boiler feed pump

85

Pump flow (m3/h)

-80

Single stage head (m)

X10

Number of impeller stages

 

Param Capacity (Q) Head (H) Speed (n) Eff (η) NPSHr Shaft power (Pa) Motor
Type Power Type
m³/h m r/min % m kW kW
DG45-80X5 45 400 2950 55 4 89.1 150 JK113-2
DG45-80X6 45 480 2950 55 4 107 150 JK113-2
DG45-80X7 45 560 2950 55 4 124.8 150 JK113-2
DG45-80X8 45 640 2950 55 4 142.8 185 JK122-2
DG45-80X9 45 720 2950 55 4 160.5 220 JK123-2
DG45-80X10 45 800 2950 55 4 178.3 220 JK123-2
DG45-80X11 45 880 2950 55 4 196.13 275 JK124-2
DG45-80X12 45 960 2950 55 4 214 275 JK124-2
DG85-80X5 85 400 2950 65 4.5 142.1 185 JK122-2
DG85-80X6 85 480 2950 65 4.5 170.9 220 JK123-2
DG85-80X7 85 560 2950 65 4.5 199.3 275 JK124-2
DG85-80X8 85 640 2950 65 4.5 227.8 290 JK133-2 6KV
DG85-80X9 85 720 2950 65 4.5 256.3 350 JK134-2 6KV
DG85-80X10 85 800 2950 65 4.5 284.8 350 JK134-2 6KV
DG85-80X11 85 880 2950 65 4.5 313.2 440 JK134-2 6KV
DG85-80X12 85 960 2950 65 4.5 341.7 440 JK134-2 6KV
DG120-130 12 level 150 560 2950 67   793 1000 YK1000-2 6KV
DG150-100x6 150 591 2950 70 4.8 345 440 JK134-2 6KV
DG150-100x7 150 690 2950 70 4.8 403 500 JK500-2 6KV
DG150-100x8 150 788 2950 70 4.8 460.2 630 JK630-2 6KV
DG150-100x9 150 887 2950 70 4.8 518 630 JK630-2 6KV
DG150-100x10 150 985 2950 70 4.8 575.2 800 JK800-2 6KV
DG200-100X5 200 500 2980 73 4.5 373 450 Y400-1-2
DG200-100X6 200 600 2980 73 4.5 447.6 560 Y400-3-2
DG200-100x7 200 700 2980 73 4.5 522.3 630 Y400-4-2
DG200-100X8 200 800 2980 73 4.5 596.9 710 Y450-1-2
DG200-100x9 200 900 2980 73 4.5 671.5 800 Y450-2-2
DG200-100x10 200 1000 2980 73 4.5 746.1 900 Y450-3-2

Parameters

Model

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