Chemical Treatment
Depending on the mineral mined‚ various chemicals can be added to remove contamination from the desired mineral. An example of this is sulfuric acid addition within a gold mine. This process typically occurs within the treatment plant or station. The chemicals used for treatment vary greatly and operators or designers should consult the manufacturer to make sure that the pump and all components are compatible with the pumped liquid.
CIRCOR‚ through the Allweiler brand‚ offers centrifugal pumps according the DIN standards. When choosing a centrifugal pump‚ operators and engineers should take note of the pressure or head‚ viscosity‚ flow rate as well as the NPSHr. In a centrifugal pump‚ NPSHr varies as a function of flow‚ which is determined by pressure.
External Gear:
| Brand/Series | Max Flow Rate | Max Discharge Pressure (PSI) | Max Discharge Pressure (Bar) | Comments |
|---|---|---|---|---|
| B-9000 | Up to 27‚000 cc/min | 1‚000 | 70 | Made with 400 Stainless Steel |
| C-9000 | Up to 9‚000 cc/min | 2‚500 | 175 | Made with Tool Steel |
| H-9000 | Up to 9‚000 cc/min | 1‚000 | 70 | Made with 316 Stainless Steel |
Centrifugal:
| Series | Max Flow Rate | Max Delivered Heat | Max Pressure | Max Fluid Temperature | Rated output according to |
|---|---|---|---|---|---|
| ALLMag | 80 m3/h | 55m | 16 bar | 150C | DIN EN 22858/ISO 2858 |
| CNH-M | 650 m3/h | 145m | 25 bar | 170C | DIN EN 22858/ISO 2858 |
| ALLCHEM CNH-B | 1‚200 m3/h | 147m | 25 bar | 350C | DIN EN 22858/ISO 2858 |
| ALLHeat-CTWH | 1‚450 m3/h | 100m | 25 bar | 400C | DIN EN 22858/ISO 2858 |
| ALLCHEM-CNB | 240 m3/h | 100m | 25 bar | 160C | DIN EN 22858/ISO 2858 |
| ALLCHEM-CNI | 105 m3/h | 60m | 25 bar | 160C | DIN EN 22858/ISO 2858 |
Propeller:
| Series | Max Flow Rate | Max Delivered Heat | Max Pressure | Max Fluid Temperature | Comments |
|---|---|---|---|---|---|
| ALLPro PPR English Deutsch | 50‚000 m3/h | 12m | 6 bar | 200C |
| Additional Information: |  |
