18
Installation
5.4.3
Installation of ISO-F with ISO-F flange
The connection types for installation of ISO-F to ISO-F flange are "hex screw and thread-
ed hole," "stud screw and threaded hole," and "stud screw and through hole".
For the installation the following components are exclusively authorized:
●
the valid mounting kit of the Pfeiffer Vacuum accessories programme
●
mounting materials including protection screen or splinter shield are optionally avail-
able
Hexagon screw and threaded hole
Mind that the sealing surfaces are not damaged.
1) Connect the flanges according to the drawing and with the component parts of the
mounting kit.
2) Use the required number of
8
hex screws with washer.
3) Screw hex screws 1.5 x d into the threaded holes.
– The tensile strength of the flange material must be at least 270 N/mm
2
in all oper-
ating conditions.
4) Tighten the hex screws crosswise in three steps.
5) Tightening torque DN 160: 10, 20, 38 ± 3 Nm
Stud screw and threaded hole
Mind that the sealing surfaces are not damaged.
1) Use the required number of
8
stud screws and nuts.
2) Screw in the stud screws with the shorter threaded end 2.5 x d in the bore holes on
the counter flange.
3) Connect the flanges according to the drawing and with the component parts of the
mounting kit.
4) Tighten the nuts crosswise in three steps.
5) Tightening torque DN 160: 10, 20, 38 ± 3 Nm
Stud screw and through hole
Mind that the sealing surfaces are not damaged.
1) Connect the flanges according to the drawing and with the component parts of the
mounting kit.
2) Use the required number of
8
stud screws and nuts.
3) Tighten the nuts crosswise in three steps.
4) Tightening torque DN 160: 10, 20, 38 ± 3 Nm
1.5xd
2.5xd
