Pfeiffer TMH 261 PMP02821 - REBUILT
$4,500
In stock
SKU
RB_TMH261-PMP02821
| Weight | 20 lbs |
|---|---|
| Pumping Speed | 180-220 l/s |
| Ultimate Pressure | 1 x 10-10 mbar |
Pfeiffer Vacuum 261 Turbomolecular Pump - REBUILT
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| Specifications | TMH 261 P / Y P | TMU 261 P / Y P |
|---|---|---|
| Inlet | DN 100 ISO-K | DN 100 CF-F |
| Outlet | DN 25 ISO-KF/G 1/4" | |
| Venting connection | G 1/8” | |
| Rotational speed +2% | 60,000 rpm | |
| Standby rotational speed | 40,000 rpm | |
| Run-up time | 1.6 min | |
| Sound pressure level | 50 dB(A) | |
| Final pressure, backing pump | < 5 mbar | |
| Integral leak rate | < 1 x 10-7 mbar l/s | |
| Maximum permissible rotor temperature | 90°C | |
| Permissible heat radiation power | 8 W | |
| Volume flow rate for: | ||
| N2 | 210 l/s | |
| He | 220 l/s | |
| H2 | 175 l/s | |
| Ar | 200 l/s | |
| Compression ratio for: | ||
| N2 | > 1 x 109 | |
| He | 3 x 105 | |
| H2 | 1.4 x 104 | 1.3 x 104 |
| Ar | > 1 x 109 | |
| Maximum fore-vacuum pressure | ||
| N2 | 10 mbar | |
| He | 8 mbar | |
| H2 | 4 mbar | |
| Ar | 10 mbar | |
| Gas throughput at full rotational speed | ||
| N2 | 7 mbar l/s | |
| He | 9 mbar l/s | |
| H2 | 43 mbar l/s | |
| Ar | 4 mbar l/s | |
| Gas throughput at 0.1 mbar HV | ||
| N2 | 7 mbar l/s | |
| He | 6 mbar l/s | |
| H2 | 3.5 mbar l/s | |
| Ar | 7 mbar l/s | |
| Vertex power characteristics line | ||
| A | 170 W / 1,000 Hz | |
| B | 170 W / 1,000 Hz | |
| C | 103 W / 1,000 Hz | |
| D | 170 W / 760 Hz | |
| Final pressure | ||
| w/ diaphragm vacuum pump | < 1 x 10-7 mbar | < 1 x 10-8 mbar |
| w/ rotary vane vacuum pump | < 1 x 10-7 mbar | < 5 x 10-10 mbar |
| Lubricant | TL 011 | |
| Maximum cooling water consumption | 100 l/h | |
| Maximum cooling water temperature | 25°C | |
| Maximum ambient temperature w/ air cooling | 35°C | |
| Heating power consumption | 170 W | |
| Weight | 6.1 kg | 8.1 kg |
| Permissible magnetic field | 6 mT | |
| Operating voltage | 48 ± 5% VDC | |
| Maximum current consumption | 4.8 A | |
| Current consumption, continuous operation | 4.1 A | |
| Maximum power consumption | 200 W | |
| Power consumption, continuous operation | 170 W | |
| Protection class | IP 30 | |
Specifications
| Type | Label | Description | Download |
|---|---|---|---|
|
Pfeiffer TMH/TMU 261 - REBUILT | Operating Instructions | Download |
Need modifications to this item? PTB Sales' expert team of engineers can configure products to your specific needs.
Pfeiffer Vacuum TMH 261 Turbomolecular Pump - REBUILT PMP02820 / PM P02 820 TMH 261 DN 100 ISO-K PMP02821 / PM P02 821 TMH 261 P DN 100 ISO-K PMP02825 / PM P02 825 TMU 261 P DN 100 CF PMP02826 / PM P02 826 TMU 261 SG DN 100 CF PMP02830 / PM P02 830 TPH 261 PC DN 100 ISO-K