Installation Of Cf- Flanges - Pfeiffer Vacuum HIPACE 800 Operating Instructions Manual

5.4.4

Installation of CF- flanges

Assembly of CF flanges!
Loss of sealing capability due to a lack of cleanliness when handling the sealing and CF
flange.
 Assemble the sealing dry and oil-free.
 Always wear gloves when handling the components.
 Do not damage the surfaces and cutting edges.
The connection types for installation of CF to CF flange are "hexagon screw and through
hole", "stud screw and threaded hole" as well as "stud screw and through hole".
● the valid mounting kit of the Pfeiffer Vacuum accessories programme
● A copper seal
● protection screen or splinter shield are optionally
Hexagon screw and through hole
1) If used: Insert protective screen or splinter shield with the clamping lugs downward
into the high vacuum flange of the turbopump.
2) Place the seal exactly in the hollow.
3) Connect the flanges using 24 hexagon-head screws (M8) with washers and bolts.
4) Tighten the screw connections circularly.
5) Tightening torque: 22 ± 2 Nm
6) After this, check the torque, since flowing of the sealing material may make it neces-
sary to tighten the screws again.
Stud screw and threaded hole
1) Screw in the stud screws (24 pieces, M8) with the shorter threaded end into the
threaded holes of the counter flange.
2) If used: Insert protective screen or splinter shield with the clamping lugs downward
into the high vacuum flange of the turbopump.
3) Place the seal exactly in the hollow.
4) Connect the flanges using washers and nuts.
5) Tighten the screw connections circularly.
6) Tightening torque: 22 ± 2 Nm
7) After this, check the torque, since flowing of the sealing material may make it neces-
sary to tighten the screws again.
Stud screw and through hole
1) If used: Insert protective screen or splinter shield with the clamping lugs downward
into the high vacuum flange of the turbopump.
2) Place the seal exactly in the hollow.
3) Connect the flanges using 24 hexagon-head screws (M8) with washers and bolts.
4) Tighten the screw connections circularly.
5) Tightening torque: 22 ± 2 Nm
6) After this, check the torque, since flowing of the sealing material may make it neces-
sary to tighten the screws again.
NOTICE
Installation
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