Table of Contents
Advertisement
20 of 62
5 Installation at Site
NOTE
VdS-certified pumps must be connected in compliance with the current VdS CEA
4001 regulations.
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 equal to or greater than the nominal
diameters of the pump nozzles.
The nominal diameter of the suction line shall be in compliance with VdS form
3003. The installation of check and shut-off valves is also defined by VdS form
3003.
ü To prevent excessive pressure losses, adapters to larger diameters must be in
accordance with the fire protection directives.
ü 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!
▷ Remove any impurities from the piping.
▷ If necessary, install a filter.
▷ Observe the information in (ð Section 7.2.2.2, Page 35) .
3. Check that the inside of the pump is free from any foreign objects. Remove any
foreign objects.
4. If required, install a filter in the piping (see drawing: Filter in the piping).
Observe the regulations laid down in the fire protection directives!
1
2
Fig. 8: Filter in the piping
1
Differential pressure gauge
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.
5. Connect the pump nozzles to the piping.
Etanorm FXV
2
Filter
Advertisement
Table of Contents
