Pfeiffer Vacuum PMP06021 - Attaching CF Flange to CF-F; Fig. 16: Flange Connection ISO-F, Stud Screw and through Hole; Fig. 17: Flange Connection CF-F, Hexagon Head Screw and through Hole

Connection of the stud screw and tapped hole
1. For the connection of the turbopump, use only the approved mounting kits from Pfeiffer Vacuum.
2. Screw in the stud screws with the shorter end in the tapped holes on the counter flange.
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Observe the minimum tensile strength of the flange material and the screw depth.
3. Attach the turbopump with centering ring to the counter flange according to the figure.
4. Use all prescribed components for the turbopump.
5. Secure the hexagon nuts.
6. Tighten the nuts cross-wise in 3 steps.
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Tightening torque: 10, 20, 38 ± 3 Nm
Fig. 16: Flange connection ISO-F, stud screw and through hole
Connection of the stud screw and through hole
1. For the connection of the turbopump, use only the approved mounting kits from Pfeiffer Vacuum.
2. Attach the turbopump with collar flange, snap ring and centering ring to the counter flange accord-
ing to the figure.
3. Use all prescribed components for the turbopump.
4. Fasten the screw connections cross-wise in 3 steps.
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Tightening torque: 10, 20, 38 ± 3 Nm
5.2.9 Attaching CF flange to CF-F
The connection types for CF installation with CF flange are:
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"Hexagon head screw and through hole"
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"Stud screw with tapped hole"
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"Stud screw with through hole"
NOTICE
Leaks may occur due to the incorrect installation of CF flanges
Inadequate cleanliness when handling CF flanges and copper gaskets results in leaks and may
cause process damage.
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Always wear suitable gloves before touching or fitting any components.
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Fit seals only if dry and free of grease.
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Take care of damaged surfaces and cut edges.
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Replace the damaged components.
Required tools
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Hexagonal wrench (13 WAF)
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Calibrated torque wrench (tightening factor ≤ 1.6)
Fig. 17: Flange connection CF-F, hexagon head screw and through hole
Installation
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