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12
Permissible media temperature
* A temperature of 120 °C at a counter-pressure
of max. 2 bar is permitted for a short period
(15 minutes).
** At 70 °C, the maximum counter-pressure is 3 bar.
1.4 Applications
1.4.1 Appropriate, acceptable and correct usage
The DDI 209 pump is suitable for liquid,
non-abrasive and non-inflammable media strictly in
accordance with the instructions in this manual.
1.5 Warranty
Warranty in accordance with our general terms of
sale and delivery is only valid
•
if the pump is used in accordance with the
information within this manual.
•
if the pump is not dismantled or incorrectly
handled.
•
if repairs are carried out by authorised and
qualified personnel.
•
if original spare parts are used for repairs.
2. Safety
This manual contains general instructions that must
be observed during installation, operation and
maintenance of the pump. This manual must
therefore be read by the installation engineer and the
relevant qualified personnel/operators prior to
installation and start-up, and must be available at the
installation location of the pump at all times.
It is not only the general safety instructions given in
this "Safety" section that must be observed, but also
all the specific safety instructions given in other
sections.
2.1 Identification of safety instructions in
this manual
If the safety instructions or other advice in this
manual are not observed, it may result in personal
injury or malfunction and damage to the pump.
The safety instructions and other advice are
identified by the following symbols:
Information provided directly on the pump, e.g.
labelling of fluid connections, must be observed and
must be maintained in a readable condition at all
times.
2.2 Marking at the pump
The pumps with Plus
3
system are provided with the
following danger notice:
Dosing
head
material
Min. media
temperature
Max. media
temperature
p <
10 bar
p <
16 bar
[°C]
[°C]
[°C]
PVC
0 40
20
Stainless
steel,
DIN 1.4571*
–10
70
70
PP
0
40
20
PVDF**
–10
60*
20
Warning
Observe the manufacturer's safety
instructions when handling chemicals!
Caution
The dosing medium must be in liquid
form!
Observe the freezing and boiling points
of the dosing medium!
Caution
The resistance of the parts that come
into contact with the media depends on
the media, media temperature and
operating pressure. Ensure that parts
in contact with the media are
chemically resistant to the dosing
medium under operating conditions!
Make sure that the pump is suitable for
the actual dosing medium!
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 accepts no
liability for any damage resulting from
incorrect use.
Warning
If these safety instructions are not
observed, it may result in personal
injury!
Caution
If these safety instructions are not
observed, it may result in malfunction
or damage to the equipment!
Note
Notes or instructions that make the job
easier and ensure safe operation.
Beware of caustic liquids!
Risk of causticisation by the dosing
medium!
If the pump is filled, keep the cover
closed and do not touch inside the
priming chamber!
Before dismantling and transporting
the pump, empty the priming chamber
completely and clean it, if necessary!
Содержание DDI 209
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