The vacuum pump system is connected with the space plasma simulation chamber through windows. The system includes an ionization gauge to monitor the pressure inside the chamber. For testing the rocket-based and satellite-based payloads inside the chamber, it is necessary to prevent containment (especially oil) from vacuum pump system. To reduce the complexity of operation, the vacuum pump system can provide automatic operation in the future. The vacuum pump system can reduce pressure inside the chamber from 1 atm. to 10-6 torr within 8 hours and maintain the low-pressure condition for a long time.
| Device |  |
| Manufacturer | Oerlikon Leybold Vacuum |
| Model | TRIVAC D40T |
| Function | Pumping chamber into low vacuum state |
| Input voltage | AC 200/380V, 60Hz, 3-phase 1100W |
| Dimension | 655 mm D x 235 mm W x 350 mm H |
| Weight | 65 kg |
| Pumping speed | 750/900 L/min (45/54 m3/hour) |
| Ultimate pressure | 4 x 10-4 mbar = 4 x 10-2 Pa |
| Noise | 58/60 dB (A) |
| Inlet pipe diameter | DN-40KF |
| Pump oil | LVO 108 |
| Oil capacity | 3.5/2.8 L Max/Min (LVO 108) |
| Device |  |
| Manufacturer | Oerlikon Leybold Vacuum |
| Model | TURBOVAC MAG W 1300 C DN200 ISO-F |
| Function | Pumping chamber into high vacuum state |
| Power | Drive 3, 50 V, 20A, 600 Hz |
| Dimension | 285 mm D x 285 mm W x 306 mm H |
| Weight | 32 kg |
| Connecting flange high-vacuum | DN 200 ISO-F |
| Connecting flange fore-vacuum | DN 40 ISO-KF |
| Cooling | Water cooled, 120-350 L/h, 2-7 bar, 10 to 30 oC |
| Pumping speed | 1,100 L/s for N2 1,050 L/s for Ar 1,100 L/s for He 920 L/s for H2 |
| Ultimate pressure | 1 x 10-8 mbar = 1 x 10-6 Pa (7.5 x 10-9 torr) |
| Rotation speed | 36,000 rpm |
| Run-up time | 6 minutes |
| Maximum foreline pressure | 2 mbar (1.5 torr) |
| Device |  |
| Manufacturer | ULVAC, Inc. |
| Model | GP-1GRY |
| Function | Measuring chamber pressure under low vacuum state |
| Input voltage | AC 85 ~ 250V, 10 VA (125 V, 10A power requirement) |
| Dimension | 140 mm D x 90 mm W x 100 mm H for power supply 111 mm D x 100 mm W x 100 mm H for A-type meter |
| Weight | 1 kg for control box, 0.44 kg for meter and 0.035 kg for GP-H (detection unit) | Sensors | WP-01~03, 16 (GP-H) WP-04, 05 (GP-BH with clamp) WPB-10 (GP-BH with cable) |
| Pressure range | 0.4 ~ 2,700 Pa |
| Device |  |
| Manufacturer | BCV |
| Device |  |
| Manufacturer | DIAVAC Limited |
| Model | LCLV-40 |
| Function | Automatic leak valve is co-related to startup and stop of rotary pump. At pump stopping , reversed flow of oil from pump side to pumping system side is prevented, and leak is done at pump side. |
| Weight | 2.8 kg | Nominal diameter | CCF-40 (40mm) |
| Conductance | 45L/s |
| Leak volume at body seal part | 10-10 Pa m3 /s |
| Life cycle | 10K cycles (at room temperature) |
| Service voltage | AC200, 50/60Hz or AC220, 60Hz, 6/4.2W |