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Vacuum Pump, Single Stage Water Ring Vacuum Pump, 2BV5121 Vacuum Pump
2BV series water ring vacuum pumps are suitable for pumping the gases and steam. Its suction pressure can
reach 33mbar (abs) (i. E. 97 % vacuum degree). If the transformer oil is used as the operating liquid,
these pumps are called oil ring vacuum pump and the suction pressure can reach 6.7mbar (abs) (i. E. 99 %
vacuum degree). So the oil ring vacuum pumps can replace the reciprocated vacuum pumps completely. When
the liquid ring vacuum pumps work under the condition near the limited vacuum for a long time, it is
necessary to couple with the cavitation protection pipe in order to get rid of the screaming and protect
the pump.
When the compressors work, the maximum pressure is 0.26MPa(abs). And the higher of discharge pressure,
the larger of the power of the compressors. So it is necessary that the data of the discharge pressure
is provided to choose the proper motor.
1. | Main parameter | |
1.1 | Pump type | 2BV5121 |
1.2 | Max. suction capacity | 280m 3 /h(water temperature is15degree Celsius |
1.3 | Limited vacuum (when the water temperature is at 15degree Celsius) | 33mbarA |
1.4 | Motor | |
1.4.1 | Power | 7.5kW |
1.4.2 | Voltage/Phase/Frequency | 380V/3Phs/50Hz |
1.4.3 | Protection Class/Insulation Class | IP54/F |
1.5 | Operating liquid consumed | 20L/min |
1.6 | Speed | 1440rpm |
1.7 | Drive type | Direct drive(motor and pump are set on the same shaft) |
1.8 | Weight(with motor) | 149kg |
1.9 | Overall dimension (L×W×H) | 771mm×382mm×385mm |
2. | Main parts' material construction | |
2.1 | Impeller | SUS304 (0Cr18Ni9) |
2.2 | Port plate | SUS304 (0Cr18Ni9) |
2.3 | Pump cover | SUS304 (0Cr18Ni9) |
2.4 | Casing | SUS304 (0Cr18Ni9) |
2.5 | Shaft | 2Cr13 |
2.6 | Mechanical seals | John Crane |
2.7 | O-ring | PTFE |
2.8 | Valve plate | PTFE |
2.9 | Pipe for cavitation protection | PTFE |
2.10 | Intercepting plate | 0Cr18Ni9(SUS304) |
2.11 | Bearings | NSK |
