✓
The nominal diameters of the pipelines are at least equal to the nominal
diameters of the pump nozzles.
✓
Adapters to larger diameters have a diffuser angle of approx. 8° to prevent
excessive pressure losses.
✓
The pipelines have been anchored in close proximity to the pump and connected
without transmitting any stresses or strains.
1. Thoroughly clean, flush and blow through all vessels, pipelines and connections
(especially of new installations).
2. Before installing the pump in the piping, remove the flange covers on the suction
and discharge nozzles of the pump.
CAUTION
Welding beads, scale and other impurities in the piping
Damage to the pump!
▷
Free the piping from any impurities.
▷
If necessary, install a filter.
▷
3. If required, install a filter in the piping (see illustration: Filter in the piping).
1
2
Fig. 3: Filter in the piping
1
Differential pressure gauge
2
Filter
NOTE
Use a filter with laid-in wire mesh (mesh width 0.5 mm, wire diameter 0.25 mm) of
corrosion-resistant material.
Use a filter with a filter area three times the cross-section of the piping.
Conical filters have proved suitable.
4. Connect the pump nozzles to the piping.
CAUTION
Aggressive flushing and pickling agents
Damage to the pump!
▷
Match the cleaning operation mode and duration for flushing and pickling
service to the casing and seal materials used.
5.3.2 Permissible forces and moments at the pump nozzles
No piping-induced forces and moments (from warped pipelines or thermal
expansion, for example) must act on the pump.
5 Installation at Site
18 of 44
Vitastage
