Pumps like DN designed to work as retaining or small main pumps pumping oil and oil products, as well as pumps for intracaro -park, railway vests and marine terminals.
Design
Pumps like DN - centrifugal horizontal single -stage with a bilateral entrance and two -ve -picli spiral discharge.
input and the pressure nozzles are located in The lower part of the case is directed in opposite directions, which provides convenient access to the rotor without disconnecting the pipes from pipelines.
Rotor supports are drivers of rolling bearings from consistent lubricant. The end seals - mechanical end, are made in accordance with the requirements of the API 682 standard. />
The design of the pump provides for the possibility of replacing the end seals with the stuffing box. />
The pump and engine are installed on a common foundation plate.
The transmission of the torque from the engine to the pump is carried out using an elastic plate or elastic brown-tank coupling.
parameters of the pumped environment
| temperature, ° С | -5 ... + + 5 ... + 80 | ||||
| kinematic viscosity, mm²/s. no more | 300 < /span> | ||||
| Mechanical impurities content, % No more | 0.05 | ||||
| The size of mechanical impurities, mm, mm No more |
0.2 |
| Mark | feed, m³/h | Pess, m | allowed cavitation reserve, m | Rotation frequency, rpm | PPD pump, % |
| DN 400-xx | 400 < /span> | 25 ... 40 | 3.5 < /span> | 1000 < /span> | 80 < /span> |
| DN 600-xx | 600 < /span> | 25 ... 40 | 4 < /span> | 1000 < /span> | 81 < /span> |
| DN 600-xx | 600 < /span> | 50 ... 90 | 4.5 < /span> | 1500 < /span> | 80 < /span> |
| DN 800-xx | 800 < /span> | 25 ... 40 < /span> | 4 < /span> | 1000 < /span> | 81 < /span> |
| DN 800-xx | 800 < /span> | 60 ... 90 | 4.5 < /span> | 1500 < /span> | 81 < /span> |
| DN 1000s | 1000 < /span> | 25 ... 40 | 4.5 < /span> | 1000 < /span> | 82 < /span> |
| DN 1000s | 1000 < /span> | 60 ... 90 | 4.5 < /span> | 1500 < /span> | 82 < /span> |
| DN 1100-xx | 1100 < /span> | 40 ... 80 | 4.5 < /span> | 1500 < /span> | 82 < /span> |
| DN 1250s | 1250 < /span> | 40 ... 80 | 4.5 < /span> | 1500 < /span> | 83 < /span> |
