Oil pumps of the NPS type are designed for pumping oil, oil products, liquefied hydrocarbon gases and other liquids similar to indicated in physical properties and corrosive effects on the material of the pumps from -80 to +400 ° C. The pumped liquid should not contain solid suspended particles in size of more than 0.2 mm. The mass fraction of solid suspended particles in the liquid should not exceed 0.2%.
They are used in technological installations of petrochemical, oil and gas processing enterprises, fuel supply systems of CHP, large boiler rooms and gas supply stations.
Design
NPS pumps - oil centrifugal interdortione sectional eight -speed sectional with a flat horizontal connector of the case. Details of the flow of carbon steel pumps. Work wheels - one -sided entrance: are located on the shaft in two groups of four wheels between the remote ball -bearing supports. To unload the rotor from the axial forces, the entrance holes of the working wheels of both groups are facing in opposite directions. Lubrication of bearings - liquid, circulation.
Technical characteristics
- Feed range: 32 - 3700 m³/h
- Smooth range: 150 - 1900 m (2800 m for a high -speed line)
- Pressure: up to 275 kgf/cm²
- Rotation frequency: up to 4500 rpm
- The temperature of the pumped environment: - 80 ... + 250 ° C
- Specific density: above 0.70
| NACE NACE | Feed, m³/hour | Ples, m | Rotation frequency, rpm | Engine power, kW |
| NPS 65/35-500 | 65/35 | 500 | 3000 | 160 |
| NPS 120/65-750 | 120/65 | 750 | 3000 | 400 |
| NPS 200/700 | 200 | 700 | 3000 | 630 |
