Pumps 12 km-20, 12 km-20A are designed to supply oil with a temperature of 313-343K (40-70 ° C) into the lubrication system of turbine units. The pumps are rotated by alternating current electric motors and are designed for continuous operation.
design
Pumps 12 km-20, 12 km-20a:
- centrifugal,
- Vertical,
- single -stage.
The upper support of the pump rotor is a supporting rolling bearing and the lower is a sliding bearing lubricated by the pumped liquid. The direction of rotation of the pump rotor is clockwise if you look from the drive side.
Materials
- Corps and working wheels - steel 25l,
- Val - steel 45,
- Sealing rings - Cast iron,
- Lower liner, bearing - bronze of bra9zh3l
| pos. |
Supported
pump |
feed,
m 3 /h |
pressure,
m |
n,
min -1 |
mass
pump, kg |
Power
engine, kW |
| 1 | 12 km-20 | 430 | 18 | 1470 | 1404 | 37 |
| 2 | 12 km-20a | 300 | 18 | 1470 | 1404 | 37 |
