KNF N630.12, Translation Of Original Operating And Installation Instructions

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Safety Diaphragm pump N630.12
8 Translation of Original Operating and Installation Instruction, english, KNF 318761-318764 02/22
Handling of
hazardous
media
Upon breakage of the working diaphragm and/or leaks, the transferred
medium will mix with the air in the inner space between the working di-
aphragm and the safety diaphragm and/or with the air in the surroundings.
Risk of dangerous gas mixtures during pump operation if the working di-
aphragm breaks: Depending on the medium being transferred, breakage
of the working diaphragm can result in a dangerous mixture if the medium
mixes with the air in the innerspace between the working diaphragm and
the safety diaphragm:
§
KNF recommends monitoring the innerspace between the working di-
aphragm and the safety diaphragm (see item 5 in Fig. 4) through the
hole(s) in the intermediate ring for a change in pressure. If the pres-
sure changes in the innerspace, the pump is to be stopped immedi-
ately.
§
After breakage of the working diaphragm, the pump must be stopped
immediately. Replace the working diaphragm and safety diaphragm
prior to further operation (see Chapter
8 Servicing ).
§
If pressure or flow rate changes without apparent reason, switch off the
pump immediately and check the pump for damage.
Make sure that a dangerous situation cannot arise as a result.
When pumping hazardous media, observe the safety regulations for the
handling of said media.
Handling of combustible media Note that the pump is not designed to be explosion-proof.
Make certain that the temperature of the medium is always sufficiently be-
low the ignition temperature of the medium so as to prevent ignition or ex-
plosion. This also applies for abnormal operating situations.
Note that the temperature of the medium increases when the pump com-
presses the medium.
Therefore, make certain that the temperature of the medium also remains
sufficiently below the ignition temperature of the medium even when it is
compressed to the maximum permissible operating pressure of the pump.
The maximum permissible operating pressure of the pump is stated in
Chapter
3 Technical data .
Make certain that the permissible ambient temperature (see 3 Technical
data ) is not exceeded.
Where applicable, also take into account external energy sources (such as
radiated heat sources) that could additionally heat the medium.
In case of doubt, contact KNF Customer Service.
2.6 Use
2.6.1 Proper use
The pumps are intended exclusively for transferring gases and vapors.
The pumps are intended exclusively for operation in indoor areas and in
non-explosive atmospheres.
Variable frequency drive Pumps with three-phase motor are designed for operation with a variable
frequency drive in the speed range 500 – 1500 rpm (50 Hz) or 600 – 1800
rpm (60 Hz) (see also Chapter
6.2 Electrical connection ).
2.6.2 Foreseeable misuse
The pumps must not be operated in explosive atmospheres.
The pumps are not suitable for transferring the following:
§
Dusts