EVP175/275 Two-stage oil rotary vane pump Features :
·Using non-spring rotary blades to achieve low noise, low vibration and long service life.
·Built-in check valve to avoid oil return.
·Use built-in forced fed oil pump to ensure long-term continuous operation of the pump under normal pressure.
·Adopt air-cooled, oil-cooled, water-cooled and other cooling methods to ensure a good cooling effect, make the pump run stably for a long time and stable pumping performance.
·Reasonable structure, convenient disassembly and assembly, quick and convenient maintenance.
Performance :
| MODEL | EVP175 | EVP275 | ||
| Pumping Rate | 50Hz | m3/h | 160 | 255 |
| 60Hz | m3/h | 196 | 306 | |
| Motor Rotational Speed | 50Hz | r/min | 1440 | 1440 |
| 60Hz | r/min | 1720 | 1720 | |
| Motor Power | 3 Phase /4 Pole | kW | 5.5 | 7.5 |
| Ultimate Pressure | Gas Ballast Closed | Pa | 5X10-1 | 5X10-1 |
| Gas Ballast Opened | Pa | 2 | 2 | |
| Allowed Maximum Outlet Pressure | Gauge Pressure | MPa | 0.05 | 0.05 |
| Maximum Capacity of Water Vapor | – | kg/h | 2.4 | 2.5 |
| Inlet | JIS | DN | VG80 | VG80 |
| Outlet | JIS | DN | VG50 | VG50 |
Pumping Speed Graph :
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