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Pfeiffer TMH 261-250 REBUILT
Starting at
$5,800
In stock
Only %1 left
SKU
REBUILT_TMH261-250-030
| Weight |
20 lbs |
| Pumping Speed |
180-220 l/s |
| Ultimate Pressure |
1 x 10-10 mbar |
Pfeiffer Vacuum TMH 261-250-030 P X Split Flow 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 261-250-030 Split Flow Turbomolecular Pump - REBUILT
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