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Mechanical Booster Pump
PMB-C
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By using together with dry vacuum pumps, oil rotary vacuum pumps or water-sealed vacuum pumps, mechanical booster pumps can increase pumping speed in the range between 10kPa to 0.1 Pa, where roughing pump pumping speed drops.
Features
- These pumps use no oil in the pumping chamber resulting in stable performance even when evacuating water vapor or solvent vapors.
Specifications
| Model | PMB-040C | PMB-060C | ||
| Actual pumping speed | 50Hz | 3,800 m3/h (63,300 L/min) | 6,200 m3/h (103,300 L/min) | |
| 60Hz | ||||
| Maximum suction pressure | 50Hz | 8.0 x 102 Pa | ||
| 60Hz | ||||
| Maximum allowable differential pressure | 50Hz | 5.9 x 103 Pa | 5.1x103 Pa | |
| 60Hz | ||||
| Ultimate pressure *1 | 6.7 x 10-1 Pa | |||
| Allowable drive pressure | 8.0 x 10-2 Pa | |||
| Motor | Type of motor | Totally enclosed fan cooled 3 phase induction motor | ||
| Energy efficiency class | IE3 | |||
| Power | 15 kW (4 poles) | 18.5 kW (4 poles) | ||
| Voltage (200V class) |
50Hz | 200 V | ||
| 60Hz | 200 / 220 V | |||
| Oil |
ULVOIL R-72
|
|||
| Oil capacity | 8 L | |||
| Cooling method | Water cooling | |||
| Cooling water | Primary side pressure | 0.3 Mpa | ||
| Inlet / outlet differential pressure volume |
0.05 Mpa | |||
| Cooling water capacity | 10 L/min | |||
| Cooling water temperature *2 | 5 ～ 30 ℃ | |||
| Inlet port JIS-B-2290 | VG250 equivalent | VG300 equivalent | ||
| Outlet port JIS-B-2290 *3 | VF150 equivalent | VF200 equivalent | ||
| Dimension W×D×H *4 | 772 x 1182 x 680mm | 772 x 1452 x 680mm | ||
| T1 / T2 | 50Hz | 1570 / 900 mm | 1608 / 900 mm | |
| 60Hz | 1570 / 940 mm | 1608 / 940 mm | ||
| Weight | 970 kg | 1100 kg | ||
| Standard roughing pump | PKS-070B | PKS-070B x 2 | ||
| Applicable standard | - | |||
| Standard accessory | without motor | without motor | ||
| Option | Motor voltage that differs from the voltage listed above. | |||
Note) This specification uses SI measurement units. Conversion to non-SI units is as follows :
6.7 x 10-1 Pa = 5 × 10-3 Torr
*1 Measured by Pirani vacuum gauge using a standard backing pump and standard vacuum oil.
*2 Use in an environment where there is no condensation.
*3 Outlet port (exhaust port) direction is able to select.
*4 For other dimensions, visit ULVAC web and refer to the posted CAD data.
Pumping Speed Curves
Dimension drawing
| PMB-040C | PMB-060C | |
| W | 772 | 772 |
| D | 1182 | 1452 |
| H | 680 | 680 |
