Fig. 6: Flange Connection Iso-K With Iso-F, Hexagon Head Screw And Tapped Hole; Fig. 7: Flange Connection Iso-K With Iso-F, Stud Screw And Tapped Hole - Pfeiffer Vacuum HIPACE 300 Operating Instructions Manual

Installation
Required tools
● Hexagon wrench (13 WAF)
● Calibrated torque wrench (tightening factor ≤ 1.6)
Fig. 6:
Connection of the hexagon head screw and tapped hole
1. Only use the approved mounting kits of Pfeiffer Vacuum for the connection of the turbopump.
2. Place the collar flange over the high vacuum flange of the turbopump.
3. Insert the snap ring in the side groove on the high vacuum flange of the turbopump.
4. Attach the turbopump with collar flange, snap ring and centering ring to the counter flange accord-
5. Use all prescribed components for the turbopump.
6. Screw the hexagon head screws into the tapped holes.
7. Fasten the hexagon head screws cross-wise in 3 steps.
Fig. 7:
Connection of the stud screw and tapped hole
1. Only use the approved mounting kits of Pfeiffer Vacuum for the connection of the turbopump.
2. Screw in the required number of stud screws with the shorter end in the holes on the counter
3. Place the collar flange over the high vacuum flange of the turbopump.
4. Insert the snap ring in the side groove on the high vacuum flange of the turbopump.
5. Attach the turbopump with collar flange, snap ring and centering ring to the counter flange accord-
6. Use all prescribed components for the turbopump.
7. Secure the nuts cross-wise in 3 steps.
80/116
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.
Flange connection ISO-K with ISO-F, hexagon head screw and tapped hole
ing to the figure.
– Observe the minimum tensile strength of the flange material and the screw depth.
– Tightening torque: 5, 10, 16 ± 1 Nm
Flange connection ISO-K with ISO-F, stud screw and tapped hole
flange.
– Observe the minimum tensile strength of the flange material and the screw depth.
ing to the figure.
– Tightening torque: 5, 10, 16 ± 1 Nm