Turbo pumping sta-
tion
Applied tor-
que
2)
Super-
structural
parts
3)
Flatness
Tensile
strength
4)
Screw in
depth
5)
Magnetic
field
6)
Heat in-
put
7)
HiCube 30 Eco
500 Nm
50 kg
± 0.05 mm 170 N/mm
2
2.5 x d
3.0 mT
1.2 W
HiCube 80 Eco
620 Nm
3.3 mT
0.9 W
HiCube 300 Eco
2000 Nm
5.5 mT
2.4 W
270 N/mm
2
1.5 x d
Tbl. 5:
Requirements for on-site high vacuum connection
► Only use the approved mounting kits of Pfeiffer Vacuum for the high vacuum connection of the
turbopump.
5.4.2 Using accessories for the high vacuum connection
Installation and operation of accessories
Pfeiffer Vacuum offers a series of special, compatible accessories for its products.
● Information and ordering options for approved
can be found on-
line.
● The following accessories are not included in the scope of supply.
Using a splinter shield or protective screen
Pfeiffer Vacuum centering rings with splinter shield or protective screen in the high vacuum flange pro-
tect the turbopump against foreign bodies from the vacuum chamber. The volume flow rate of the pump
reduces according to the flow conductance values and the size of the high vacuum flange.
Flange size
Reduced pumping speed in % for the gas type
H
2
He
N
2
Ar
Splinter shield DN 40
6
9
17
18
Splinter shield DN 63
3
6
15
16
Protective screen DN 63
1
1
4
4
Splinter shield DN 100
5
7
24
24
Protective screen DN 100
2
2
10
8
Tbl. 6:
Changing pumping speed with splinter shield or protective screen
► With ISO flanges, use centering rings with a protective screen or splinter shield.
► With CF flanges, always insert the protective screen or splinter shield into the high vacuum flange
with the clamping lugs pointing towards the rotor.
Using vibration dampers
Pfeiffer Vacuum vibration dampers are suitable for use on plants sensitive to vibration.
2)
Maximum torque applied in the event of a burst: The theoretically calculated torque in the
event of a burst (rotor shaft breakage) according to ISO 27892 was not reached in any experi-
mental test.
3)
Permissible total weight of superstructural parts on the pumping station
4)
Tensile strength of counter flange material in all operating conditions, according to screw
in depth
5)
Screw in depth of fixing screws in counter flange
6)
Maximum permissible magnetic field surrounding pumping station
7)
Maximum permissible heat absorption in pumping station
Installation
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