Mechanical Loads On The Pump Tube; Operation; Suction Funnel - LUTZ B70H Manuel D'utilisation

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5.4 Mechanical loads on the pump tube

The pump tube's functioning and service life are impaired when
deformed by mechanical loads. For this reason, the outlet must not
be subjected to compressive or tensile forces.
► The bending moment MB at the outlet must not exceed 37 ft-lb /
50 Nm (→ Fig. 12).
► Avoiding overload of adapter and motor by supporting the pump
tube between outrun piece and stator sleeve (→ Fig. 18).

6. Operation

3 All connections and fi ttings are properly tightened.
!
WARNING
If connections are not properly or not at all tightened:
- it can come to splashing medium.
- it can come to fl ying parts.
- the pump may start moving in an uncoordinated manner.
!
WARNING
Danger of injury and intoxication when handling hazardous
liquids!
► Always wear protective equipment when working on the pump.
►When pumping dangerous media (e.g. hot, explosive, poisonous,
dangerous to health) observe safety regulations for handling
hazardous substances.

6.1 Suction funnel

► Highly viscous liquids must be able to fl ow quickly enough to
prevent the formation of suction funnels (→ Fig. 15).
18
Fig. 12
Fig. 18
Fig. 15