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.
Required tools
● Ring spanner,
WAF 17
for the fixing screws
● Ring spanner,
WAF 16
for flange DN 160 ISO-F and DN 250 ISO-F
● Ring spanner,
WAF 30
for flange DN 160 PN16 and DN 250 PN16
● Calibrated torque wrench (tightening factor ≤ 2.5)
1
2
3
4
Fig. 8:
Connecting the vacuum side to ISO-F
1 Reinforcing flange
3
Corrugated bellows, or piping
2 4 fixing screws, M10 × 40
4
Lugs with screws
Connecting vacuum side
1. Degrease the connection flange.
2. Clear welded lines of any scaling, loose particles etc. prior to installation.
3. Unscrew the fixing screws from the reinforcing flange.
4. Install the corrugated bellows or piping with the lugs and screws included in the scope of delivery.
– Tightening torque:
45 Nm
.
5. With PN flanges, remember to include
all
specified screws and flange components in accordance
with pressure stage PN16.
6. Route the piping between the vacuum pump and vacuum chamber so that it remains as short as
possible; at a minimum, the nominal diameter of the pump flange.
7. Select a larger nominal diameter for pipe lengths > 5 m.
8. 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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