5 Installation at Site
24 of 76
EtaLine Pro
1168.87/01-EN
Vertical installation
Fig. 10:
Vertical installation / mounted without pump foot
Provide a vent valve to prevent dry running of the mechanical seal.
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5.5 Piping
5.5.1 Connecting the piping
DANGER
Impermissible loads acting on the pump nozzles
Danger to life from leakage of hot, toxic, corrosive or flammable fluids!
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Do not use the pump as an anchorage point for the piping.
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Anchor the pipelines in close proximity to the pump and connect them properly
without transmitting any stresses or strains.
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Observe the permissible forces and moments at the pump nozzles.
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Take appropriate measures to compensate for thermal expansion of the piping.
CAUTION
Incorrect earthing during welding work at the piping
Destruction of rolling element bearings (pitting effect)!
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Never earth the electric welding equipment on the pump or baseplate.
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Prevent current flowing through the rolling element bearings.
NOTE
Installing check and shut-off elements in the system is recommended, depending on
the type of plant and pump. However, such elements must not obstruct proper
drainage or hinder disassembly of the pump.
ü
Suction lift lines have been laid with a rising slope, suction head lines with a
downward slope towards the pump.
ü
A flow stabilisation section having a length equivalent to at least twice the
diameter of the suction flange has been provided upstream of the suction flange.
ü
The nominal diameters of the pipelines are at least equal to the nominal
diameters of the pump nozzles.
ü
Adapters to larger diameters have a diffuser angle of approximately 8° to
prevent excessive pressure losses.
ü
The pipelines have been anchored in close proximity to the pump and connected
without transmitting any stresses or strains.
