1 SAFETY PRECAUTIONS
PAGE
1.2R
1.8 Specific points for the use of a NEMO
®
pump
A NEMO
®
pump must be used for the purpose only for which it was sold.
If you change or wish to change the process medium, you must check with either the
supplier or manufacturer that the pump is suitable for the new medium. This is
especially important with aggressive, poisonous or otherwise hazardous substances.
Pump criteria include:
1. Compatibility with the pumped media
2. Suitability for seal design / material, especially the shaft seal
3. Resistance to pressure and temperature of the media
The NEMO
®
pump is a positive displacement pump and as such is able to
generate pressures that exceed the pumps design limit.
A blockage or the chance closure of a valve in the discharge line can cause a
pressure rise manifold as high as can be tolerated by the installation.
This can result in the bursting of pipes, which must be avoided especially in the case
of dangerous media.
Corresponding safety equipment must therefore be installed, for example an
emergency stop button, a pressure relief valve with return pipe or a bursting disc.
During maintenance and repair work on the pump please note the following:
1. Ensure that the pump drive can not be turned on without authorization
2. When opening the pump follow the instructions for handling the medium (eg.
protective clothing, no smoking etc)
3. Before putting the pump back into operation ensure that all guards and other
safety devices (eg. drive–belt protection, coupling protection) are properly re–
installed
text no.
R 01004-3/4
issued: 15.03.2019 Revision: 6
copy to:
Always consider and observe your safety during operation,
maintenance and installation of the machine. Please adhere to the
EC-Directive for Machinery including national regulations and
follow the European Standard EN ISO 12100-1 with the accident
prevention rules laid down by the trade unions and other
appropriate technical institutions.
10
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