Oil Rotary Vane Vacuum Pump (Double Stage) (MVP Big Series)
Woosung Vacuum Pump (Oil Rotary Vane Vacuum Pump (Double Stage) (MVP Big Series)
Design Features
Design Operation Principle
| Technical Data | MVP 144 | MVP 216 | MVP 324 | |
| Nominal Displacement 50Hz | m³/h | 120 | 180 | 270 |
| Nominal Displacement 60Hz | m³/h | 144 | 216 | 324 |
| Ultimimate Pressure | Torr (With Gas Ballast) | 5 x 10ˉ4 | 5 x 10ˉ4 | 5 x 10ˉ4 |
| Torr (Without Gas Ballast) | 5 x 10ˉ3 | 5 x 10ˉ3 | 5 x 10ˉ3 | |
| Motor Version 50Hz/60Hz | Three Phase | 380V | 380V | 380V |
| Motor Version 50Hz/60Hz | Single Phase | - | - | - |
| Nominal Motor Rating kW | Three Phase | 3.7 | 5.5 | 7.5 |
| Nominal Motor Rating kW | Single Phase | - | - | - |
| Nominal Motor Speed 50Hz/60Hz | Min-1 | 1450/1750 | 1450/1750 | 1450/1750 |
| Cooling water (less than 20ºC) | L/min | - | - | 6 |
| Oil filling | liter | 11 | 16 | 217 |
| Weight Approx 50Hz/60Hz | KG | 172 | 290 | 358 |
Design Features
- Excellent ultimate vacuum and pumping speed.
- Improved anti-suckback system to protect the pump in the event of sudden stop.
- International standard flange.
- Low noise level and low vibration level.
- Constant pressure oil circulating system.
- Convenient gas ballast valve control.
- Simple repairing and maintenance.
- Convenient cooling system by air-cooled and water-cooled (MVP-324)
Design Operation Principle
- MVP Series is two-stage oil sealed rotary vane vacuum pump. It is new concept out of conventional design to satisfy customer’s needs.
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The structure of the pump
It consists of pump housing, oil casing, motor housing, pump base and pump module. It occupies oil anti-suckback valve and gas ballast for protecting pump and vacuum system.
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Operating Principle
The pump and motor are connected by flexible coupling. As the rotor rotates two vanes, placed in rotor vane groove, turn making contact with the internal surface of the cylinder due to centrifugal force.
The inhaled gas is trapped between two vanes as the rotating vane passes through the inlet passage and this trapped gas is compressed as it rotates toward exhaust valve and eventually exhaust through valve. The vacuum oil is supplied to the moving parts for lubrication and tight sealing.
