Pfeiffer HiPace 300 Operating Instructions Manual page 13

Installing the high
vacuum flange
Installation of ISO-K
flange with ISO-K
flange
Installation of ISO-F
with ISO-F flange
If the rotor is suddenly blocked, the torques arising from the system and the high
vacuum flange must be absorbed. Only the components designated as accessory
can be used to fasten the turbo pumps to the high vacuum flange. The components
for installing the turbo pumps are special designs of Pfeiffer Vacuum. Observe the
minimum strength of 170 N/mm
Danger to life - impermissible fastening
Twisting or tearing-off is possible in case the rotor is suddenly blocked due to the fas-
tening of pumps on a vacuum chamber with different flange variants.
 The combination of different flange types is impermissible in any case.
 Pfeiffer Vacuum will not accept any liability for all damages resulting from impermis-
sible fastening.
Observe shape tolerances for the counter flange!
Unevennesses of the customer supplied counter flange can lead to warping of the
pump casing despite proper fastening. Leakiness and negative running characteristics
can be the result.
 Do not exceed an evenness of max. 0.05 mm for the whole surface.
Mounting of ISO flanges
If the rotor suddenly blocks the connection of high vacuum flanges of types ISO-KF or
ISO-K can lead to twisting despite proper installation.
• The tighness of the high vacuum flange is not at risk thereby.
For the installation of the flange connections the following components are avail-
able:
• The valid mounting kit of the Pfeiffer Vacuum accessories programme.
• A protection screen or splinter shield can optionally be used.
 Mind that the sealing surfaces are not damaged.
 Connect the flanges according to the drawing and with the component parts of
the mounting kit.
 Use the required number of 6 claw clamps.
 Tighten the claw clamps crosswise in three steps.
 Tightening torque: 5, 15, 25 ±2 Nm
The connection types for installation of ISO-F to ISO-F flange are "hex screw and
blind hole", "stud screw and blind hole" as well as "stud screw and through hole".
The following elements are required:
• The valid mounting kit of the Pfeiffer Vacuum accessories programme.
• A protection screen or splinter shield can optionally be used.
2
for the flange material.
DANGER
NOTE
NOTE
Installation
13