5. Tighten the screw couplings all the way around.
– Tightening torque:
22 ± 2 Nm
6. Then check the torque, since flowing of the sealing material may make it necessary to re-tighten
the screws.
Fig. 11:
Flange connection CF-F, stud screw and tapped 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 required number of stud screws with the shorter end in the holes on the counter
flange.
3. If used: Insert the protective screen or splinter shield with clamping lugs downwards in the turbo-
pump high vacuum flange.
4. Place the seal exactly in the hollow.
5. Connect the flange with the components of the mounting kit according to the figure.
6. Tighten the screw couplings all the way around.
– Tightening torque:
22 ± 2 Nm
7. Then check the torque, since flowing of the sealing material may make it necessary to re-tighten
the screws.
Fig. 12:
Flange connection CF-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. If used: Insert the protective screen or splinter shield with clamping lugs downwards in the turbo-
pump high vacuum flange.
3. Place the seal exactly in the hollow.
4. Connect the flange with the components of the mounting kit according to the figure.
5. Tighten the screw couplings all the way around.
– Tightening torque:
22 ± 2 Nm
6. Then check the torque, since flowing of the sealing material may make it necessary to re-tighten
the screws.
5.5 Connect the exhaust side
WARNING
Danger of death from poisoning due to toxic gases being expelled without an exhaust line
Exhaust gases and vapors are released from the turbo pumping station unhindered during normal us-
age. In the case of processes with toxic media, there is a risk of injury and danger of death due to
poisoning.
► Note the corresponding regulations for handling toxic substances.
► Toxic process gases should be safely conveyed away via an exhaust line.
Installation
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