- 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)
|Design pumping speed||50Hz||9m3/h(155L/min)||19m3/h(310L/min)|
|Final pressure *2||6.7 x 10-1Pa|
|Motor (number of poles) *3||0.4kW(4P)||0.75kW(4P)|
|Required oil volume||0.3L||0.5L|
|Oil *4||ULVOIL R-7|
|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|
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.