Using A Splinter Shield Or Protective Screen; Using The Vibration Compensator; Tbl. 6: Reduction Of The Pumping Speed When Using A Splinter Shield Or Protective; Fig. 3: Example: Safety Connections - Pfeiffer Vacuum HIPACE 300 Operating Instructions Manual

Installation
Fig. 3:
1
5.2.3 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 matter from the vacuum chamber. The pumping speed is reduced
according to the passage guide values and the size of the high vacuum flange.
Flange size
Splinter shield DN 100
Protective screen DN 100
Tbl. 6:
Procedure
► With ISO flanges, use centering rings with protective screen or splinter shield.
► For CF flanges, always insert protective screen or splinter shield with the clamping lugs pointing
5.2.4 Using the vibration compensator
Risk of injury caused by the turbopump breaking away with the vibration compensator in the
event of a malfunction
Sudden jamming of the rotor generates high destructive torques in accordance with ISO 27892.
When using a vibration compensator, this will probably lead to the turbopump being sheared off in
use. The energy that this would release could throw the entire turbopump or shattered pieces from its
interior through the surrounding space. Potentially dangerous gases can escape. There is a risk of
very serious injuries, including death, and extensive property damage.
► Take suitable safety precautions on-site for the compensation of the occurring torques.
► Before installing a vibration compensator, you must first of all contact Pfeiffer Vacuum.
Pfeiffer Vacuum vibration compensators are suitable for use on vibration-sensitive systems.
Installing the vibration compensator
1. Install the vibration compensator only with vertical passage.
2. Consider the flow resistance.
3. Secure the turbopump additionally to the high vacuum flange.
4. Observe the fastening of the ISO flanges.
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VACUUM CHAMBER
Example: Safety connections
Safety connections, customer-side
Reduction of the pumping speed when using a splinter shield or protective screen
towards the rotor in the high vacuum flange.
WARNING
Reduced pumping speed in % by gas type
H He
2
5 7
2 2
1
N Ar
2
24 24
10 8