KM 251 en
22 15.720148-V1.0
5 Installation
5.1 Mounting
Mount the pump on a console or pump foundation using 4 screws.
Note
Make sure that the flow runs in the opposite direction to gravity.
5.2 General Information on Installation
!
Warning
Observe the specifications for the installation location and range of application
described in the “General” section.
!
Warning
Errors, incorrect operation or faults on the pump or system can lead, for example,
to excessive or insufficient dosing, or the permissible pressure may be exceeded.
Possible errors, faults or damage which may result from this must be evaluated by
the operator and appropriate precautions must be taken to avoid them!
Note
A positive pressure difference of 2 bar min. is required between the suction valve
and the pressure valve in order for the dosing pump to operate correctly. If the total
counterpressure (at the dosing point) and geodetic height difference between the
suction valve and the dosing point is less than 2 bar (20 m WS), a pressure
retention valve must be installed directly in front of the dosing point.
Caution
Risk of hot surfaces! Pumps with A.C. motors can become hot. Allow a minimum
spacing of 100 mm to the ventilator cowl!
5.2.1 Approximate values when using pulsation dampers
Caution
Risk of damage to the system! We always recommend using pulsation dampers for
large high-speed pumps!
Since the pulsation is influenced by many factors, a system-specific calculation is
essential, e.g. on request with our calculation program.
The following table indicates the approximate values, and for which suction line length
suction pulsation dampers are required. The values relate to 50 Hz operation where water
or similar liquids are used as the dosing medium.
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