3. Secure the turbopump additionally to the high vacuum flange.
4. Observe the fastening of the ISO flanges.
5.2.5 Mounting orientations
Pfeiffer Vacuum turbopumps of the HiPace Neo series are suitable for use with dry compressing back-
ing pumps for mounting in
all
orientations.
► When using oil-sealed backing pumps, avoid backflow from the fore-vacuum range.
VV
HV
VV
VV
±25° max
Fig. 4:
Recommended alignment when using oil-sealed backing pumps
Specify a horizontal mounting orientation for oil-sealed backing pumps
1. Always align the fore-vacuum connection downwards vertically.
– Permissible deviation ± 25°
2. Support the tube connections in front of the turbopump.
3. Do not allow any forces from the piping system to act on the turbopump.
4. Do not load the high vacuum flange of the turbopump on one side.
5.2.6 Installation of ISO-KF flange
ISO flange connections
For the connection of flanges in ISO-KF or ISO-K design, twisting may occur in the event of
sudden blockage of the rotor, despite correct installation.
● Leak-tightness of the flange connection, however, is not jeopardized in this regard.
Required tools
● Allen key
● Calibrated torque wrench (Tightening factor ≤ 1.6)
Fig. 5:
Flange connection ISO-KF to ISO-KF
Using of clamping ring
1. Only use the approved mounting kits from Pfeiffer Vacuum for the connection.
2. Fasten the high vacuum connection on the turbopump and the clamping ring to the counter flange.
3. Utilize all prescribed components for the turbopump.
4. Tighten the clamping ring screws evenly.
– Tightening torque:
3,7 Nm
.
Installation
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