The PVD series are belt-driven compact rotary vacuum pumps with outstanding evacuation characteristics. They are used by a large number of ULVAC customers.
Features
- Consistent pumping performance
- Low vibration and low noise
- Because the pump body is machined from a single aluminum block casting the unit has fewer parts to maintain.
- Oil-backflow prevention(PVD-B series)
Specifications
| Model *1 | PVD-180(B) | PVD-360(B) | |
| Design pumping speed | 50Hz | 9m3/h(155L/min) | 19m3/h(310L/min) |
| 60Hz | 11m3/h(186L/min) | 22m3/h(372L/min) | |
| Final pressure *2 | 6.7 x 10-1Pa | ||
| Motor (number of poles) *3 | 0.4kW(4P) | 0.75kW(4P) | |
| Motor speed | 50Hz | 500rpm | |
| 60Hz | 600rpm | ||
| Required oil volume | 0.3L | 0.5L | |
| Oil *4 | ULVOIL R-7 | ||
| Cooling method | Air-cooled | ||
| Intake pipe size | inner diameter x outer diameter | Φ28mm x Φ19mm | Φ34mm x Φ27mm |
| Vent pipe size (JIS pipe screw thread) | G3/4(PF3/4) | G1(PF1) | |
| Weight (pump + base) | 33.5kg | 43kg | |
| External dimensions | W x D x H | 235 x 450 x 321mm | 275 x (500) x 321mm |
| Standard accessories | Base, belt cover, motor pulley, V-belt, oil for 1 pump | ||
| Options | TMX-1 oil mist trap, oil mist trap adapter, C-1/2 base with handle and casters | ||
Note:
This specification uses SI measurement units. Conversion to non-SI units is as follows
Final pressure : 6.7 x 10-1 Pa = 5 x 10-3 torr
*1 PVD-B series models : PVD-180B and PVD-360B are versions of PVD-180 and PVD-360 with oil backflow prevention mechanisms.
*2 Measured by pirani vacuum gauge (about 6.7 x 10-2 Pa with macLeod vacuum gauge)
*3 When ordering, specify whether you require a motor, and if you do, specify its type, voltage and frequency. Totally enclosed fan-cooled motors, increased safety motors, and explosion-proof motors are available as options. (Except PVD-B series)
*4 Other oil types are available. Contact ULVAC's Sales Department.