9
Installation
5
Installation
5.1 Set-up
When installing the pump, observe the following conditions:
• The ambient conditions named for the area of use.
• The temperature of the high vacuum flange must not exceed 120 °C.
• The pump may be fastened to the floor only after consultation with Pfeiffer Va-
cuum.
• The pumps must not be installed in systems in which sporadic loads and vibra-
tions or periodic forces have an effect on the pump.
5.2 Preparatory work
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Ensure sufficient cooling for the turbopump.
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Where magnetic fields > 6 mT are involved, a suitable shielding must be used.
Check installation location and consult Pfeiffer Vacuum if needed!
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The maximum permissible rotor temperature for the turbopump is 90 °C. If high
temperatures arise for process reasons, the radiated heat input must not exceed
8 W. Install suitable screening sheets, if necessary (design information on re-
quest).
5.3 Assembly
• Ensure the greatest possible cleanliness when installing any high vacuum parts.
Unclean components prolong the pump-down time.
• All flange components must be grease-free, dust-free and dry at installation.
• The operating fluid reservoir is already installed and filled for the turbopumps
TMH/U 261.
Use of a splinter
shield or protection
screen
The installation of a Pfeiffer Vacuum centering ring with splinter shield or protec-
tion screen in the high vacuum flange protects the turbopump against foreign bod-
ies coming from the recipient. The volume flow rate is reduced as followed.
WARNING
Danger from the turbopump being ripped off.
If the rotor is suddenly blocked, torques of up to 1860 Nm can occur; if the turbopump
is not properly fastened, it can be ripped off.
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Precisely follow installation instructions.
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Only use original components for the installation.
NOTE
Installation and operation of accessories
Pfeiffer Vacuum pumps can be equipped with a series of adapted accessories. The
installation, operation and maintenance of connected devices are described in detail in
the operating instructions of the individual components.
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For information on the operating instructions of components, see "Accessories".
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Use original accessory parts only.
Reduced volume flow rate in %
H
2
He
N
2
Splinter shield DN 100
5
7
17
Protection screen DN 100
1
2
5
