5.4.5 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. 8:
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
.
5.4.6 Attaching ISO-K flange onto ISO-K
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
● Wrench, WAF 15
● Calibrated torque wrench (Tightening factor ≤ 1.6)
Fig. 9:
Flange connection ISO-K to ISO-F, bracket screws
Connection with bracket screw
1. For the connection of the turbopump, use only the approved mounting kits from Pfeiffer Vacuum.
2. Connect the flange with the components of the mounting kit according to the figure.
3. Use for all prescribed components for the turbopump.
4. Tighten the bracket screws cross-wise in 3 steps.
– Tightening torque:
5, 15, 25 ± 2 Nm
5.4.7 Installation of ISO-K flange onto ISO-F
The connection types for the installation of ISO-K with ISO-F flange are:
● "Claw and tapped hole"
● "Hexagon head set screw and tapped hole"
Installation
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