Connecting The Fore-Vacuum Side; Fig. 15: Example Of Fore-Vacuum Connection On Hipace - Pfeiffer Vacuum HIPACE 300 Operating Instructions Manual

Installation
5.3 Connecting the fore-vacuum side
Danger to life from poisoning where toxic process media leak from damaged connections
Sudden twisting of the turbopump in the event of a fault causes fittings to accelerate. There is the risk
of damaging on-site connections (e.g., fore-vacuum line) and resulting leaks. This results in leakage
of process media. In processes involving toxic media, there is a risk of injury and danger to life due to
poisoning.
► Keep masses connected to the turbopump as low as possible.
► Use flexible lines to connect to the turbopump where necessary.
Fig. 15:
1 Turbopump fore-vacuum connection
2 Centering ring
3 Circlip
Establishing the fore-vacuum connection
1. With rigid pipe connections, include bellows to attenuate external vibrations.
2. Install a fore-vacuum connection with small flange components, e.g. connection elements and
3. Implement measures to counteract the back flow of operating fluids or condensate from the fore-
4. Observe the information in the operating instructions of the backup pump or pumping station when
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WARNING
Suitable backing pump
Use the turbopump only in combination with a suitable backing pump that can deliver up to
the required maximum fore-vacuum pressure. To achieve the fore-vacuum pressure, use a
suitable vacuum pump or a pumping station from the Pfeiffer Vacuum range.
In this case, the backing pump is also controlled directly via the turbopump electronic drive
unit interfaces (e.g., relay box or connection cable).
1
Example of fore-vacuum connection on HiPace 300
pipe components DN 16 ISO-KF from the
vacuum area.
connecting and operating it.
2
3
4
4 Vacuum components DN 16 ISO-KF
5 Backing pump (e.g. multi-stage roots vacuum pump)
Pfeiffer Vacuum Components
5
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