CB Type DG(Steam) Boiler Feed Pump
DG (Steam) industrial steam boiler feed pump is a single-suction, multi-stage segmental centrifugal pump; this series of pumps is a high-efficiency and energy-saving product specially designed for the new series of industrial steam boilers to be updated and renovated. It is not only suitable for medium and low pressure boiler feed water, but also for high-lift water delivery in factories and cities. The medium temperature is -20 ℃~105 ℃, and the pump inlet pressure shall not exceed 0.59 MPa (6 kgf/cm²).
The suction and discharge ports of DG (Steam) pumps are both vertically upward, the pump rotor is supported by rolling bearings, grease lubrication, and the axial thrust balance adopts a balance disc structure. The shaft seal can be a packing seal or a mechanical seal.EMAC will continue to update the product introduction pages of different standard versions of pumps. Please subscribe to our website to get the latest update information.
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General Specifications of DG (Steam) Series
| Flow range: | 1.5~78 m³/h |
| Head range: | 73~405 m |
DG (Steam) Model Description
- DG5-27×3
- DG single suction, multi-stage boiler feed pump
- 5-flow rate (m³/h)
- 27-pump single-stage head (m)
- 3-number of pump stages
Click Kit Name to Check Part List
ParameterType | Capacity Q | Head H | Speed N | Shaft power Pa | Motor | Eff. η | NPSH r | impolier Dia | Pump diameter | weight | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| power | Type | Inlet Dia | Outlet Dia | ||||||||||
| m³/h | L/s | m | r/min | kW | kW | % | m | mm | mm | mm | kg | ||
| DG5-27×3 | 3 5 8 | 0.83 1.39 2.22 | 84 81 75 | 2980 | 3.1 3.45 4.08 | 7.5 | Y132S₂-2 | 22 32 40 | 2.8 | 150 | 40 | 32 | 175 |
| DG5-27×4 | 3 5 8 | 0.83 1.39 2.22 | 112 108 100 | 2980 | 4.14 4.6 5.44 | 7.5 | Y132S₂-2 | 22 32 40 | 2.8 | 150 | 40 | 32 | 185 |
| DG5-27×5 | 3 5 8 | 0.83 1.39 2.22 | 140 135 125 | 2980 | 5.17 5.75 6.8 | 11 | Y160M₁-2 | 22 32 40 | 2.8 | 150 | 40 | 32 | 195 |
| DG5-27×6 | 3 5 8 | 0.83 1.39 2.22 | 168 162 150 | 2980 | 6.21 6.9 8.16 | 11 | Y160M₁-2 | 22 32 40 | 2.8 | 150 | 40 | 32 | 205 |
| DG5-27×7 | 3 5 8 | 0.83 1.39 2.22 | 196 189 175 | 2980 | 7.25 8.05 9.5 | 11 | Y160M₁-2 | 22 32 40 | 2.8 | 150 | 40 | 32 | 215 |
| DG5-27×8 | 3 5 8 | 0.83 1.39 2.22 | 224 216 200 | 2980 | 8.29 9.2 10.88 | 15 | Y160M₂-2 | 22 32 40 | 2.8 | 150 | 40 | 32 | 225 |
| DG5-27×9 | 3 5 8 | 0.83 1.39 2.22 | 252 243 225 | 2980 | 9.32 10.35 12.25 | 15 | Y160M₂-2 | 22 32 40 | 2.8 | 150 | 40 | 32 | 235 |
| DG5-27×10 | 3 5 8 | 0.83 1.39 2.22 | 280 270 250 | 2980 | 10.36 11.5 13.6 | 15 | Y160M₂-2 | 22 32 40 | 2.8 | 150 | 40 | 32 | 245 |
| DG5-27×11 | 3 5 8 | 0.83 1.39 2.22 | 308 297 275 | 2980 | 11.39 12.65 14.96 | 18.5 | Y160L-2 | 22 32 40 | 2.8 | 150 | 40 | 32 | 255 |
| DG5-27×12 | 3 5 8 | 0.83 1.39 2.22 | 336 324 300 | 2980 | 12.43 13.8 16.32 | 18.5 | Y160L-2 | 22 32 40 | 2.8 | 150 | 40 | 32 | 265 |
| DG8-35×3 | 5 8 10 | 1.39 2.22 2.78 | 109 99 85 | 2980 | 4.79 5.99 6.44 | 11 | Y160M₁-2 | 31 36 36 | 3.6 3.7 4.6 | 170 | 40 | 40 | 144.1 |
| DG8-35×4 | 5 8 10 | 1.39 2.22 2.78 | 146 132 114 | 2980 | 6.42 7.98 8.63 | 11 | Y160M₁-2 | 31 36 36 | 3.6 3.7 4.6 | 170 | 40 | 40 | 156.5 |
| DG8-35×5 | 5 8 10 | 1.39 2.22 2.78 | 182 165 142 | 2980 | 8 9.98 10.75 | 15 | Y160M₂-2 | 31 36 36 | 3.6 3.7 4.6 | 170 | 40 | 40 | 168.9 |
| DG8-35×6 | 5 8 10 | 1.39 2.22 2.78 | 218 198 171 | 2980 | 9.58 11.97 12.95 | 15 | Y160M₂-2 | 31 36 36 | 3.6 3.7 4.6 | 170 | 40 | 40 | 181.2 |
| DG8-35×7 | 5 8 10 | 1.39 2.22 2.78 | 255 231 199 | 2980 | 11.21 13.97 15.07 | 18.5 | Y160L-2 | 31 36 36 | 3.6 3.7 4.6 | 170 | 40 | 40 | 193.6 |
| DG8-35×8 | 5 8 10 | 1.39 2.22 2.78 | 291 264 227 | 2980 | 12.79 15.96 17.19 | 22 | Y180M-2 | 31 36 36 | 3.6 3.7 4.6 | 170 | 40 | 40 | 206 |
| DG8-35×9 | 5 8 10 | 1.39 2.22 2.78 | 328 297 256 | 2980 | 16′ 17.96 19.38 | 22 | Y180M-2 | 31 36 36 | 3.6 3.7 4.6 | 170 | 40 | 40 | 218.4 |
| DG8-35×10 | 5 8 10 | 1.39 2.22 2.78 | 364 330 284 | 2980 | 16 19.95 21.5 | 30 | Y200L₁-2 | 31 36 36 | 3.6 3.7 4.6 | 170 | 40 | 40 | 230.7 |
| ——END—— | |||||||||||||
ParameterType | Capacity Q | Head H | Speed N | Shaft power Pa | Motor | Eff. η | NPSH r | impolier Dia | Pump diameter | weight | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| power | Type | Inlet Dia | Outlet Dia | ||||||||||
| m³/h | L/s | m | r/min | kW | kW | % | m | mm | mm | mm | kg | ||
| DG13-35×3 | 10 13 17 | 2.7 3.61 4.72 | 111 105 87 | 2980 | 7.2 8.3 8.95 | 11 | Y160M₁-2 | 42 45 45 | 2.2 2.4 2.5 | 170 | 50 | 50 | 228 |
| DG13-35×4 | 10 13 17 | 2.7 3.61 4.72 | 148 140 116 | 2980 | 9.32 11 11.93 | 15 | Y160M₂-2 | 42 45 45 | 2.2 2.4 2.5 | 170 | 50 | 50 | 250 |
| DG13-35×5 | 10 13 17 | 2.7 3.61 4.72 | 185 175 145 | 2980 | 11.66 13.76 14.91 | 18.5 | Y160L-2 | 42 45 45 | 2.2 2.4 2.5 | 170 | 50 | 50 | 272 |
| DG13-35×6 | 10 13 17 | 2.7 3.61 4.72 | 222 210 174 | 2980 | 14 16.52 17.89 | 22 | Y180M-2 | 42 45 45 | 2.2 2.4 2.5 | 170 | 50 | 50 | 294 |
| DG13-35×7 | 10 13 17 | 2.7 3.61 4.72 | 259 245 203 | 2980 | 16.32 19.27 20.88 | 30 | Y200L₁-2 | 42 45 45 | 2.2 2.4 2.5 | 170 | 50 | 50 | 316 |
| DG13-35×8 | 10 13 17 | 2.7 3.61 4.72 | 296 280 230 | 2980 | 18.66 22.02 23.65 | 30 | Y200L₁-2 | 42 45 45 | 2.2 2.4 2.5 | 170 | 50 | 50 | 338 |
| DG13-35×9 | 10 13 17 | 2.7 3.61 4.72 | 333 315 261 | 2980 | 20.99 24.77 26.84 | 30 | Y200L₁-2 | 42 45 45 | 2.2 2.4 2.5 | 170 | 50 | 50 | 360 |
| DG13-35×10 | 10 13 17 | 2.7 3.61 4.72 | 370 350 290 | 2980 | 23.22 27.53 29.83 | 37 | Y200L₂-2 | 42 45 45 | 2.2 2.4 2.5 | 170 | 50 | 50 | 382 |
| ——END—— | |||||||||||||
ParameterType | Capacity Q | Head H | Speed N | Shaft power Pa | Motor | Eff. η | NPSH r | impolier Dia | Pump diameter | weight | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| power | Type | Inlet Dia | Outlet Dia | ||||||||||
| m³/h | L/s | m | r/min | kW | kW | % | m | mm | mm | mm | kg | ||
| DG20-35×3 | 16.3 20 23 | 4.53 5.56 6.39 | 110 105 100 | 2980 | 8.88 9.87 10.62 | 15 | Y160M₂-2 | 55 58 89 | 2.8 3 3.3 | 165 | 65 | 65 | 197 |
| DG20-35×4 | 16.3 20 23 | 4.53 5.56 6.39 | 147 140 134 | 2980 | 11.87 13.16 14.23 | 18.5 | Y160L-2 | 55 58 89 | 2.8 3 3.3 | 165 | 65 | 65 | 210 |
| DG20-35×5 | 16.3 20 23 | 4.53 5.56 6.39 | 183 175 167 | 2980 | 14.78 16.45 17.73 | 22 | Y180M-2 | 55 58 89 | 2.8 3 3.3 | 165 | 65 | 65 | 222 |
| DG20-35×6 | 16.3 20 23 | 4.53 5.56 6.39 | 220 210 200 | 2980 | 17.76 19.74 21.24 | 30 | Y200L₁-2 | 55 58 89 | 2.8 3 3.3 | 165 | 65 | 65 | 234 |
| DG20-35×7 | 16.3 20 23 | 4.53 5.56 6.39 | 256 245 234 | 2980 | 20.67 23.03 24.85 | 30 | Y200L₁-2 | 55 58 89 | 2.8 3 3.3 | 165 | 65 | 65 | 247 |
| DG20-35×8 | 16.3 20 23 | 4.53 5.56 6.39 | 293 280 267 | 2980 | 23.66 26.32 28.35 | 37 | Y200L₂-2 | 55 58 89 | 2.8 3 3.3 | 165 | 65 | 65 | 259 |
| DG20-35×9 | 16.3 20 23 | 4.53 5.56 6.39 | 330 315 300 | 2980 | 26.65 29.61 31.58 | 37 | Y200L₂-2 | 55 58 89 | 2.8 3 3.3 | 165 | 65 | 65 | 272 |
| DG20-35×10 | 16.3 20 23 | 4.53 5.56 6.39 | 366 350 334 | 2980 | 29.55 32.89 35.46 | 45 | Y225M-2 | 55 58 89 | 2.8 3 3.3 | 165 | 65 | 65 | 284 |
| DG25-35×3 | 20 25 30 | 5.56 6.94 8.33 | 114 105 93 | 2980 | 10.9 11.71 13.09 | 15 | Y160M₂-2 | 57 61 58 | 2.7 3 3.3 | 175 | 65 | 65 | 243 |
| DG25-35×4 | 20 25 30 | 5.56 6.94 8.33 | 152 140 124 | 2980 | 14.54 15.62 17.46 | 22 | Y180M-2 | 57 61 58 | 2.7 3 3.3 | 175 | 65 | 65 | 267 |
| DG25-35×5 | 20 25 30 | 5.56 6.94 8.33 | 190 175 155 | 2980 | 18.17 19.52 21.82 | 30 | Y200L₁-2 | 57 61 58 | 2.7 3 3.3 | 175 | 65 | 65 | 291 |
| DG25-35×6 | 20 25 30 | 5.56 6.94 8.33 | 228 210 185 | 2980 | 21.8 23.42 26.04 | 30 | Y200L₁-2 | 57 61 58 | 2.7 3 3.3 | 175 | 65 | 65 | 315 |
| DG25-35×7 | 20 25 30 | 5.56 6.94 8.33 | 266 245 217 | 2980 | 25.44 28.74 30.55 | 37 | Y200L₂-2 | 57 61 58 | 2.7 3 3.3 | 175 | 65 | 65 | 339 |
| DG25-35×8 | 20 25 30 | 5.56 6.94 8.33 | 304 280 248 | 2980 | 29.07 31.23 34.92 | 37 | Y200L₂-2 | 57 61 58 | 2.7 3 3.3 | 175 | 65 | 65 | 363 |
| DG25-35×9 | 20 25 30 | 5.56 6.94 8.33 | 342 315 279 | 2980 | 32.71 35.14 39.28 | 45 | Y225M-2 | 57 61 58 | 2.7 3 3.3 | 175 | 65 | 65 | 387 |
| DG25-35×10 | 20 25 30 | 5.56 6.94 8.33 | 380 350 310 | 2980 | 36.34 39.04 43.64 | 55 | Y250M-2 | 57 61 58 | 2.7 3 3.3 | 175 | 65 | 65 | 411 |
| ——END—— | |||||||||||||
ParameterType | Capacity Q | Head H | Speed N | Shaft power Pa | Motor | Eff. η | NPSH r | impolier Dia | Pump diameter | weight | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| power | Type | Inlet Dia | Outlet Dia | ||||||||||
| m³/h | L/s | m | r/min | kW | kW | % | m | mm | mm | mm | kg | ||
| DG42-45×3 | 25 42 50 | 6.94 11.67 13.89 | 158 135 120 | 2980 | 20.28 25.74 27.24 | 30 | Y200L₁-2 | 53 60 60 | 2 2.4 2.8 | 275 | 80 | 80 | 201 |
| DG42-45×4 | 25 42 50 | 6.94 11.67 13.89 | 210 180 160 | 2980 | 26.96 34.32 36.31 | 45 | Y225M-2 | 53 60 60 | 2 2.4 2.8 | 275 | 80 | 80 | 219 |
| DG42-45×5 | 25 42 50 | 6.94 11.67 13.89 | 262 225 200 | 2980 | 33.63 42.9 45.39 | 55 | Y250M-2 | 53 60 60 | 2 2.4 2.8 | 275 | 80 | 80 | 237 |
| DG42-45×6 | 25 42 50 | 6.94 11.67 13.89 | 315 270 240 | 2980 | 40.44 51.49 54.47 | 75 | Y280S-2 | 53 60 60 | 2 2.4 2.8 | 275 | 80 | 80 | 254 |
| DG42-45×7 | 25 42 50 | 6.94 11.67 13.89 | 368 315 280 | 2980 | 47.24 60 62.54 | 75 | Y280S-2 | 53 60 60 | 2 2.4 2.8 | 275 | 80 | 80 | 272 |
| DG42-45×8 | 25 42 50 | 6.94 11.67 13.89 | 420 360 320 | 2980 | 53.91 68.65 72.6 | 90 | Y280M-2 | 53 60 60 | 2 2.4 2.8 | 275 | 80 | 80 | 290 |
| DG42-45×9 | 25 42 50 | 6.94 11.67 13.89 | 473 405 360 | 2980 | 60.72 77.23 80.41 | 90 | Y280M-2 | 53 60 60 | 2 2.4 2.8 | 275 | 80 | 80 | 307 |
| DG42-45×10 | 25 42 50 | 6.94 11.67 13.89 | 525 450 400 | 2980 | 67.4 85.81 89.35 | 110 | Y315S-2 | 53 60 60 | 2 2.4 2.8 | 275 | 80 | 80 | 325 |
| ——END—— | |||||||||||||
ParameterType | Capacity Q | Head H | Speed N | Shaft power Pa | Motor | Eff. η | NPSH r | impolier Dia | Pump diameter | weight | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| power | Type | Inlet Dia | Outlet Dia | ||||||||||
| m³/h | L/s | m | r/min | kW | kW | % | m | mm | mm | mm | kg | ||
| DG78-45×3 | 47 78 90 | 13.06 21.67 25 | 145 135 127.8 | 2980 | 35.03 41.57 44.12 | 55 | Y250M-2 | 53 69 71 | 4 | 195 | 100 | 100 | 242.6 |
| DG78-45×4 | 47 78 90 | 13.06 21.67 25 | 194 180 170.4 | 2980 | 46.87 55.42 58.82 | 75 | Y280S-2 | 53 69 71 | 4 | 195 | 100 | 100 | 267.8 |
| DG78-45×5 | 47 78 90 | 13.06 21.67 25 | 242 225 213 | 2980 | 58.46 69.28 73.53 | 90 | Y280M-2 | 53 69 71 | 4 | 195 | 100 | 100 | 293 |
| DG78-45×6 | 47 78 90 | 13.06 21.67 25 | 290 270 255.6 | 2980 | 70.06 83.13 88.24 | 90 | Y280M-2 | 53 69 71 | 4 | 195 | 100 | 100 | 318.2 |
| DG78-45×7 | 47 78 90 | 13.06 21.67 25 | 340 315 298.2 | 2980 | 82.14 97 102.19 | 110 | Y315S-2 | 53 69 71 | 4 | 195 | 100 | 100 | 343.4 |
| DG78-45×8 | 47 78 90 | 13.06 21.67 25 | 388 360 340.8 | 2980 | 93.73 110.8 117.65 | 132 | Y315M₁-2 | 53 69 71 | 4 | 195 | 100 | 100 | 368.6 |
| DG78-45×9 | 47 78 90 | 13.06 21.67 25 | 436 405 383.4 | 2980 | 105.3 124.7 132.35 | 160 | Y315M₂-2 | 53 69 71 | 4 | 195 | 100 | 100 | 393.8 |
| DG78-45×10 | 47 78 90 | 13.06 21.67 25 | 485 450 426 | 2980 | 117.17 138.6 147.1 | 160 | Y315M₂-2 | 53 69 71 | 4 | 195 | 100 | 100 | 419 |
| ——END—— | |||||||||||||

