Installer Manual Fleck 5800 - XTR - Description
12 / 122 Ref. MKT-IM-006 / B - 16.01.2018
Environmental conditions
• Indoor use only;
• temperature from 0°C to 52°C;
• maximum relative humidity 80% for temperatures up to 31°C decreasing linearly to 50% relative
humidity at 40°C;
• mains supply voltage fluctuations up to ±10% of the nominal voltage.
3.1.1. Performance flow rate characteristics
The graph shows the pressure drop created by the valve itself at different flow rates. It allows to
predetermine the maximum flow rate going through the valve depending on the system settings (inlet
pressure etc). It also allows to determine the valve pressure drop at a given flow rate, and therefore
to evaluate the system pressure drop vs flow rate.
PRESSURE DROP
Flow rate (m
3
/h]
Pressure differential (bar)
Backwash
Service
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