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Required aids
● Hole circle in accordance with the dimensions of the turbopump
● Fixing screws, strength class ≥ 8.8, galvanized
● Washer, DIN EN ISO 7090 or DIN EN ISO 7092
● Mounting plate supplied by the customer
Required tools
● Allen key, WAF 4
● Wrench, alternatively, for DIN 933 hexagon head screws
● Calibrated torque wrench (tightening factor ≤ 1.6)
Fastening turbopump to bottom part
1. Remove any anti-vibration buffers from the pump bottom part.
2. Place the turbopump upright on the mounting plate.
3. Bolt the pump bottom part to the mounting plate with the required number of permissible fixing
Turbopump
HiPace 30
HiPace 30 Neo
HiPace 30 Neo H
HiPace 60
HiPace 80
HiPace 80 Neo
HiPace 80 Neo H
SplitFlow 50
SplitFlow 80
SplitFlow 80 Neo
Tbl. 5:
5.3 Connecting the high vacuum side
5.3.1 Requirements for dimensioning a counter flange
Risk of damage due to incorrect counter flange design
Unevenness on the operator-side counter flange results in stresses in the vacuum pump housing,
even when properly attached. This can produce leakage or negative changes in running characteris-
tics.
► Adhere to the shape tolerances for the counter flange.
► Observe the maximum flatness deviations over the entire surface.
If the rotor is suddenly blocked, the torques arising from the system and the high vacuum flange must
be absorbed. The installation elements for turbo pumps are special designs by Pfeiffer Vacuum.
screws and washers.
– Observe the specified engagement depth.
– Observe the permissible tightening torque.
Mounting plate
Minimum thickness |
Tensile strength
2 mm | > 270 MPa
Requirements for fastening the turbopumps to the bottom part
The assembly of vertical superstructural parts on the high vacuum connection is the re-
sponsibility of the operating company. The loading capacity of the high vacuum flange is
specific for the turbopump used. The total weight of superstructural parts must not exceed
the maximum values specified.
Thread
Quantity
Screw in
size
depth
M5
4
≥ 1.3 × d
NOTICE
Installation
Tightening tor-
que
6 Nm ± 10 %
21/54
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