Grundfos DME 150 AP, Инструкция по установке и эксплуатации

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Caution
The dosing medium must be in liquid
aggregate state!
Observe the freezing and boiling points of
the dosing medium!
Caution
The resistance of the parts that come into
contact with the dosing medium, such as
the dosing head, valve ball, gaskets and
lines, depends on the medium, media
temperature and operating pressure.
Ensure that parts in contact with the
dosing medium are resistant to the dosing
medium under operating conditions, see
data booklet!
Should you have any questions regarding
the material resistance and suitability of
the pump for specific dosing media, please
contact Grundfos.
1.6 Diaphragm breakage
If the diaphragm leaks or is broken, dosing liquid
escapes from the drain opening on the dosing head.
Warning
Danger of explosion, if dosing liquid has
entered the pump housing!
Operation with damaged diaphragm can
lead to dosing liquid entering the pump
housing.
In case of diaphragm breakage,
immediately separate the pump from the
power supply!
Make sure the pump cannot be put back
into operation by accident!
Dismantle the dosing head without
connecting the pump to the power supply
and make sure no dosing liquid has
entered the pump housing. Proceed as
described in section Dismantling the
diaphragm and valves.
To avoid any danger resulting from diaphragm
breakage, observe the following:
•
Perform regular maintenance.
• Never operate the pump with blocked or soiled
drain opening.
- If the drain opening is blocked or soiled,
proceed as described in section Dismantling
the diaphragm and valves.
• Never attach a hose to the drain opening. If a
hose is attached to the drain opening, it is
impossible to recognise escaping dosing liquid.
• Take suitable precautions to prevent harm to
health and damage to property from escaping
dosing liquid.
• Never operate the pump with damaged or loose
dosing head screws.
Related information
4.3 Installation of pump
8.1 Regular maintenance
8.3.2 Dismantling the diaphragm and valves
8.4 Diaphragm breakage
1.7 Operation with loose dosing head
screws
Warning
Danger of explosion, if dosing liquid has
entered the pump housing!
Operation with damaged or loose dosing
head screws can lead to dosing liquid
entering the pump housing.
If the pump was operated with damaged or
loose dosing head screws, immediately
separate the pump from the power supply!
Make sure the pump cannot be put back
into operation by accident!
Dismantle the dosing head without
connecting the pump to the power supply
and make sure no dosing liquid has
entered the pump housing. Proceed as
described in section Dismantling the
diaphragm and valves.
Related information
8.3.2 Dismantling the diaphragm and valves
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