Scope of application and dimensions
Almost all the consumers can be connected to it, which may be considered for rainwater harvesting.
Pressure-side dimensions
The system is sized with consideration of the necessary top volume flow in Germany as per DIN 1988-3.
Toilet and urinal
You can connect several toilets and urinals.
Washing mashine
You can connect several washing machines.
Note:
Drip irrigation systems require a special design in combination with an expansion vessel.
Garden and cleaning
You can connect any type of garden hose or cleaning device.
Intake side dimensions
In practice, the pump automatically starts intake due to decrease in pressure (pipe friction, intake level) only in a certain range. In this operating range, it evacuates the air from the pump independent of the suction line (for example, with initial start up operation). The intake characteristic line indicates the dependence of intake length on the intake level. The determined value must be above the represented intake line in the diagram. If the intake value is below the intake performance line, then a charging pump (optional accessory RMF-LP) will be necessary to ensure the intake process proceeds reliably and with sufficient safety.
Note: The charging pump boosts the water intakepressure, so that an intake level of up to 3 m high can be attained. This means that, the performance curve moves 3 m parallel towards down.
Sample sizing
Example A:
Length of suction pipe = 12 m
Intake level = 2.40 m (Height difference between deepest intake position and pump)) = o.k. since the point of intersection lies above the performance curve
Example B:
Length of suction pipe = 18 m
Intake level = 3,20 m (Height difference between deepest intake position and pump) = not o.k., since the point of intersection lies below the performance curve
