VARISCO SaxMag V Series, Руководство по эксплуатации

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OPERATING MANUAL - SAXMAG V
Page 22
7
Removing the pump
If the pump is under warranty you will need to contact Varisco prior to removing the pump . Otherwise,
warranty claims will be null and void.
Prior to opening the pump, make sure that:
• it is completely depressurised;
• all its content was drained and the pump flushed;
• it was vented and allowed to cool down.
8 Risk analysis according to EN 13463-1
Predictable malfunction denotes equipment trouble which, usually occurring in the field, entails a
situation such that the pumps do not function any longer as intended or fail to meet the design
parameters.
When operating the pumps the following aspects need to be given particular consideration:
• Faulty design: Failure of a pump component (e.g., bearing damage);
• Trouble caused by external effects: obstruction attributable to foreign matter in the pumped
medium, or discharge-side clogging;
• Overtemperature resulting from recirculation when the pressure relief valve has operated;
• Operator's failure to conduct checks as necessary.
Referring to the appraisal of malfunctions, it can be anticipated that predictable malfunction because of
faulty design or installation faults is ruled out by implementing the 'Internal Production Control' quality
assurance system established at the manufacturer's in conformity with Annex VIII of the Directive
94/9/EC. This quality system, while guaranteeing design in line with good engineering practice, also
serves to ensure that agreements with the customers as well as the design solutions chosen are in
conformity with Directive 94/9/EC and the underlying standards.
Consistent compliance with the operating manual and maintenance instructions implies that loss of
control of the pumps by the operators is ruled out.
An assessment of concrete design solutions with respect to ignition hazards (acc. to EN 13463-1) is
made in the table below (see next page).