1
2
3
4
5
Fig. 6:
Example of vacuum connection
1 Vacuum connection of the scroll pump
4
Circlip
2 Protective cap
5
Centering ring
3 Vacuum components DN 25 ISO-KF
Procedure
1. Take the protective cap off the scroll pump vacuum connection.
2. Install the connection between vacuum pump and vacuum system so that it is as short as possi-
ble.
3. Install a vacuum connection with small flange components, e.g. fasteners and pipe components
DN 25 ISO-KF from the
Pfeiffer Vacuum Components Shop
4. Connect the vacuum pump to the vacuum system using the vacuum connection.
5.3 Connecting the exhaust side
WARNING
Danger to life from poisoning where toxic process gases leak with no exhaust line
During normal operation, the vacuum pump expels exhaust gases and vapors freely into the air. In
processes involving toxic media, there is a risk of injury and danger to life due to poisoning.
► Observe the relevant regulations for handling toxic substances.
► Safely purge toxic process gases via an exhaust line.
CAUTION
Danger of injury from bursting as a result of high pressure in the exhaust line
Faulty or inadequate exhaust pipes lead to dangerous situations, e.g., increased exhaust pressure.
There is a danger of bursting. Injuries caused by flying fragments, the escaping of high pressure, and
damage to the unit cannot be excluded.
► Open shut-off units immediately before or at the same time as starting the pump.
► Observe the maximum permissible pressure of 1,500 hPa (absolute).
► Observe the permissible pressures and pressure differentials for the product.
► Check the function of the exhaust line on a regular basis.
Condensate separator
Pfeiffer Vacuum recommends installing a condensate separator, with condensate drain at
the lowest point of the exhaust line.
Installation
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