Alcatel Vacuum Technology Adixen ATH 1300 M, Руководство пользователя

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Inlet flange installation
conditions (item 2)
B 30
Pump connections to an installation
Alcatel Vacuum Technology France - User’s Manual ATH 1300 M/MT - ATH 1600 M/MT
4/6
GB 00733 - Edition 10 - Februar
y 03
We strongly recommend the use of ISO-F or CF-F flanges.
ISO-K type flanges are not recommended to fasten
turbomolecular because:
• There is no visual reminder (like threaded holes on ISO-F)
to signal how many clamps are needed to secure the pump,
• It is not as easy to fasten claw clamps on ISO-K flanges as
to secure bolts on ISO-F flanges,
• The ISO-K flanges do not prevent accidental rotation of the
pump on the equipment flange in case of pump rotor crash.
This rotation could damage the foreline and the purge gas
line which would generate hazards for the user.
WARNING
For safety reasons, it is important to tighten the bolts with a
torque wrench according to the specified values :
- lower torque
➔
risk of loosened bolts
- higher torque ➔ risk of damaging the bolts.
WARNING
The resulting maximum loads from a crash have to be taken
into account by the pump assembling bolts.
Design and secure the pump frame so that it can withstand
the loads.
According to the housing type:
Mounting holes ATH 1300 - ATH 1600
at inlet flanges
Inlet flange DN200 ISO-F DN250 ISO-F DN200 CFF DN250 CFF
Type of bolts dictated M 10 M 10 M 8 M 8
Number of bolts dictated 12 12 24 32
Bolt metric grade 12-9 12-9 12-9 12-9
Installation torque per 30 30 20 20
bolt (N.m)
Total clamping force (N) 161500 161500 266000 355000