Pfeiffer Vacuum PMP06021 - Attaching ISO-F Flange to ISO-F; Fig. 13: Flange Connection ISO-F, Hexagon Head Screw and Tapped Hole; Fig. 14: Flange Connection ISO-F, Hexagon Head Screw and through Hole; Fig. 15: Flange Connection ISO-F, Stud Screw and Tapped Hole

6. Tighten the nuts cross-wise in 3 steps.
7. Tightening torque: 5, 15, 25 ± 2 Nm
5.2.8 Attaching ISO-F flange to ISO-F
The connection types for ISO-F flange installation with ISO-F flange are:
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"Hexagon head screw and tapped hole"
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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"
Required tools
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Hexagon wrench (15 WAF)
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Calibrated torque wrench (tightening factor ≤ 1.6)
1.5 × d
Fig. 13: Flange connection ISO-F, hexagon head screw and tapped hole
Connection of the hexagon head screw and tapped hole
1. For the connection of the turbopump, use only the approved mounting kits from Pfeiffer Vacuum.
2. Attach the turbopump with centering ring to the counter flange according to the figure.
3. Use all prescribed components for the turbopump.
4. Screw the required number of hexagon head screws into the tapped hole.
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Observe the minimum tensile strength of the flange material and the screw depth.
5. Fasten the hexagon head screws cross-wise in 3 steps.
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Tightening torque: 10, 20, 38 ± 3 Nm
Fig. 14: Flange connection ISO-F, hexagon head screw and through hole
Connection of the hexagon head 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 centering ring to the counter flange according to the figure.
3. Use all prescribed components for the turbopump.
4. Push the hexagon head screws through the holes of the turbopump and counter flange.
5. Secure the hexagon nuts.
6. Fasten the screw connections cross-wise in 3 steps.
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Tightening torque: 10, 20, 38 ± 3 Nm
2.5 × d
Fig. 15: Flange connection ISO-F, stud screw and tapped hole
Installation
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