English (GB)
5
2. General information
The DDC dosing pump is a self-priming
diaphragm pump. It consists of a housing
with stepper motor and electronics,
a dosing head with diaphragm and valves and the
control cube.
Excellent dosing features of the pump:
•
Optimal intake even with degassing media, as
the pump always works at full suction stroke
volume.
•
Continuous dosing, as the medium is sucked up
with a short suction stroke, regardless of the
current dosing flow, and dosed with the longest
possible dosing stroke.
2.1 Applications
The pump is suitable for liquid, non-abrasive,
non-flammable and non-combustible media strictly in
accordance with the instructions in these installation
and operating instructions.
Areas of application
•
Drinking water treatment
•
Wastewater treatment
•
Swimming pool water treatment
•
Boiler water treatment
•
CIP (Clean-In-Place)
•
Cooling water treatment
•
Process water treatment
•
Wash plants
•
Chemical industry
•
Ultrafiltration processes and reverse osmosis
•
Irrigation
•
Paper and pulp industry
•
Food and beverage industries
2.2 Improper operating methods
The operational safety of the pump is only
guaranteed if it is used in accordance with
section
.
Warning
Other applications or the operation of
pumps in ambient and operating
conditions, which are not approved, are
considered improper and are not
permitted. Grundfos cannot be held liable
for any damage resulting from incorrect
use.
Warning
The pump is NOT approved for operation
in potentially explosive areas!
Warning
A sunscreen is required for outdoor
installation!
Caution
Frequent disengagement from the mains
voltage, e.g. via a relay, can result in
damage to the pump electronics and in the
breakdown of the pump. The dosing
accuracy is also reduced as a result of
internal start procedures.
Do not control the pump via the mains
voltage for dosing purposes!
Only use the "
External stop
" function to
start and stop the pump!
