English (GB)
7
2. General description
The Grundfos DME dosing pump is a self-priming
diaphragm pump.
The pump consists of:
•a cabinet incorporating the drive unit and
electronics,
•a dosing head with back plate, diaphragm,
valves, connections and vent valve,
•a control panel incorporating display and
buttons. The control panel is fitted either to the
front or to the side of the cabinet.
The motor is controlled in such a way that the dosing
gets as even and constant as possible, irrespective
of the capacity range in which the pump is operating.
This is carried out as follows:
The speed of the suction stroke is kept constant and
the stroke relatively short, irrespective of the
capacity. Contrary to conventional pumps, which
generate the dosing stroke as a short pulse, the
duration of the dosing stroke will be as long as
possible. Thus, an even dosing without peak values
is ensured. As the pump is always dosing at full
stroke length, it ensures the same high accuracy and
suction capability, irrespective of the capacity, which
is infinitely variable in the ratio of 1:800.
The pump features an LCD display and a user-
friendly control panel which gives access to the
pump functions.
2.1 Applications
The DME dosing pump is designed for handling
chemicals within the following ranges of applications,
among others:
• drinking water treatment
• wastewater treatment
• cooling water treatment
• washing systems
• process water treatment
• chemical industry.
To Next Page
Loading...
