ULVAC VACUUM > Vacuum Pumps > Oil Rotary Pumps > VS Series Oil Rotary Vacuum Pumps (2,500 to 4,800 l/min)
VS Series Oil Rotary Vacuum Pumps (2,500 to 4,800 l/min)
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The VS Series are oil rotary vacuum pumps with direct-coupled motors. They use a single level of vanes (rotary vanes) to achieve a simpler structure and faster speeds, and have compact, lightweight and low-vibration designs. Since they greatly reduce vibrations, the VS Series can be installed with less preliminary work and expense (such as during plant foundation construction). The reinforced oil circulation and cooling water systems enable stable evacuation performance at high intake pressures, enabling use in processes with repetitive evacuation, and a wide range of other applications.
- • Low vibrations and noise
• Lightweight, compact
• Enable continuous operation at full pressure (patent pending).
• Outstanding maintenance
- • Evaporation, sputtering, ion plating
• Vacuum packaging, vacuum adhesion/conveying, vacuum forming, vacuum casting
• Vacuum heat treatment furnaces, sintering furnaces, brazing furnaces
• Vacuum drying, freeze-drying, vacuum deairing
• Gas substitution/supply, vacuum insulation
• Leak test equipment, etc.
| Model | VS1501 | VS2401 | |
| Design evacuation speed | 50Hz m3/h (L/min) | 150(2500) | 240(4000) |
| 60Hz m3/h (L/min) | 180(3000) | 288(4800) | |
| Final pressure (Pa) (*1) | 5.3 | ||
| Motor (*2) | Type | Drip-proof, protected flange motor | |
| kW (number of poles) |
5.5(4P) | 7.5(4P) | |
| Voltage/frequency | 200V/50,60Hz 220V/60Hz | ||
| Required oil volume | L | 8.0 to 10.5 | |
| Oil (*3) | ULVOIL R-7 | ||
| Cooling water | Pressure (MPa) | ≦ 0.5 (gauge pressure) | |
| Flow rate (l/min) | 4 | 5 | |
| Temperature (ºC) | 5 to 30 | ||
| Intake size | JIS B 2290 | VG80 size | |
| Vent size | JIS B 2290 | VG50 size | |
| External dimensions (W x D x H; mm) | 940 x 352 x 460 | 1062 x 352 x 460 | |
| Weight (kg) (*4) | 240 | 280 | |
| Standard accessories | Motor (attached), oil for 1 motor, operating instructions (1 copy) |
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| Options | Oil mist trap, gas ballast valve, oil return mechanism, heat-resistant type | ||
*1 Measured by Pirani vacuum gauge
*2 Totally enclosed fan-cooled flange motors, increased safety flange motors, and explosion-proof flange motors
are available as options.
*3 Other oil types are available. Contact ULVAC.
*4 Weight with drip-proof, protected flange motor attached.
