5 Installation
5.1 Setting up the vacuum pump
Notes to ensure a reliable setup
1. Place the vacuum pump on a flat, horizontal surface which will ensure supply of the lubricant.
2. Observe the permissible angle of inclination of ±1°.
3. If necessary, fasten the vacuum pump to the threaded holes of the anti-vibration buffer on a sturdy
and horizontal base.
4. When installing the pump in a closed housing, ensure adequate air circulation.
5. Install the vacuum pump with adequate room to carry out maintenance work.
6. Ensure that the sight glass can be clearly seen and is easily accessible on the motor side and
vacuum side.
7. Keep the voltage and frequency specifications on the motor rating plate visible and freely accessi-
ble.
5.2 Connecting the vacuum side
WARNING
Danger of injury due to exposed rotating parts
Danger of crushing fingers and hands when the vacuum connection is open.
► Safely disconnect motor from the mains.
► Secure the motor against reactivation.
► Never insert hands or fingers into the vacuum connection.
NOTICE
Property damage from contaminated gases
Pumping gases that contain contamination damages the vacuum pump.
► Use suitable filters or separators from the Pfeiffer Vacuum range of accessories, to protect the
vacuum pump.
NOTICE
Property damage from intake of solid particles
During commissioning, there is a risk of damage to the suction chamber from dirt from the system or
the pipes.
► Use a suitable protective strainer ("start-up strainer") in the intake flange.
► Ensure that this strainer is only removed when the risk of solid particles entering the vacuum
pump can be excluded.
– Observe any pumping speed decrease.
Power input
● Select at least the same line cross section for the entire length of the power inputs as
that exhibited by the screw pump connections.
● Keep the length of the line as short as possible.
● For line lengths > 5 m, select a line cross section which is greater than the connection
nominal diameter.
Installation and operation of accessories
Pfeiffer Vacuum offers a wide range of specially tailored accessories for your screw pumps.
● Information and ordering options for approved
● Described accessories are not included in the shipment.
Installation
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