Preventing throttling losses
Using the shortest possible vacuum connection lines with large nominal diameter prevents
pressure losses.
Condensate separator
Pfeiffer Vacuum recommends the installation of a condensate separator in case vapors are
formed from moisture during evacuation.
Procedure
1. Remove the blind plug from the vacuum connection.
2. Establish the shortest possible connection between vacuum pump and vacuum chamber.
3. Choose a minimum vacuum line diameter equal to the nominal diameter of the vacuum connec-
tion.
4. Depending on the pump type, use PVC or metallic hoses with flange connections from the
5. Connect the vacuum pump to the vacuum system using the vacuum connection.
5.3 Connect 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.
► Route the exhaust line without shut-off units.
► Observe the permissible pressures and pressure differentials for the product.
► Check the function of the exhaust line on a regular basis.
CAUTION
Health hazard from increased noise emission
Operation without silencer leads to higher noise emissions. Remaining in the close proximity of the
vacuum pump for a sustained period of time may cause hearing damage.
► Install a suitable exhaust line.
► Wear hearing protection.
Condensate separator
Pfeiffer Vacuum recommends installing a condensate separator, with condensate drain at
the lowest point of the exhaust line.
Procedure
1. Check the installed silencer for free passage.
2. Choose a minimum exhaust line diameter equal to the nominal diameter of the connection flange.
3. Depending on the pump type, use PVC or metallic hoses with flange connections from the
4. Option: In case of higher gas throughputs, mount an exhaust line.
5. Route the piping downwards from the vacuum pump, to prevent condensate return.
6. Support or suspend the piping to the vacuum pump so that no piping system forces act on the
vacuum pump.
Installation
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