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Installation
Use of a splinter
shield or protection
screen
Vibration damper
Mounting orientation
12
SC
Vacuum chamber
SC
SC = Safety Connection
SC
Fig. 3:
Example: How to secure against shifting and tipping by external tremors
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 chamber. The volume flow rate is reduced.
Splinter shield DN 100
Protection screen DN 100
Danger from the turbopump and vibration dumper being torn-off
In case of sudden blocking of the rotor, an applied vibration dumper cannot compensate
any of the occurring forces. There is a danger of the turbopump being torn-off and there-
by resulting severest injuries and property damages. Applicable safeguards must be
taken to compensate possible occurring torques.
Definetely consult with Pfeiffer Vacuum.
Do not exceed the max. permissible temperature at the vibration dumper (100° C).
When using dry backing pumps Pfeiffer Vacuum HiPace pumps are designed for in-
stallation in any orientation.
Support pipes in front of the vacuum pump or remove them. No force from the
pipe system may be exerted on the fixed pump.
To avoid contamination via the fore-vacuum line when using oil-sealed backing
pumps the fore-vacuum flange should always point vertically downward (± 25°).
VV
Fig. 4:
Recommended orientation of the fore-vacuum flange
The maximum axial loading capacity of the high vacuum flange is 500 N (equals
50 kg). A one-sided load on the high vacuum flange is not permitted.
Reduced pumping speed in %
He
H
2
5
7
2
2
DANGER
VV
25° max
SC
SC
N
Ar
2
24
24
10
8
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