Model: ISG, IRG, IHG pipeline pumps
Many pipeline pump frames are built at 2900 and 1450 r/min. How speed changes flow, head and power, with real pairs from our table.
| Power | 2-pole and 4-pole motors |
|---|
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From DN65 upwards, many frames in our range appear twice under the same model name: once with a 2-pole motor at about 2900 r/min and once with a 4-pole motor at about 1450 r/min. Halving the speed changes everything.
| Model | 2900 r/min | 1450 r/min |
|---|---|---|
| 65-200 | 25 m³/h, 50 m, 7.5 kW | 12.5 m³/h, 12.5 m, 1.1 kW |
| 100-200 | 100 m³/h, 50 m, 22 kW | 50 m³/h, 12.5 m, 3 kW |
| 100-315 | 100 m³/h, 125 m, 75 kW | 50 m³/h, 32 m, 11 kW |
At half the speed, flow halves, head falls to a quarter and power to roughly an eighth. These are the affinity laws, and the table follows them closely.
When you order, always give the speed or motor power with the model. Both versions are listed in the selection table.
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