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OPERATING MANUAL
VERSION 12/2012 ORDER NUMBER DOC 2330426
4.3.2 OPERATION WITHOUT FLUID
4.3.3 MAXIMUM SURFACE TEMPERATURE
4.3.4 MAXIMUM SURFACE TEMPERATURE EXOTHERMIC REACTIONS
4.3.5 CONNECTION PIPES
4.3.6 PUMP PROTECTION
Avoid running the pump sucking air, without uid inside. The air, combined with the
vapour of ammable uids, can generate internal areas with an explosion hazard.
Periodically check that the pump is working regularly, paying special attention to presence
of air in the pumped uid, which may be caused by a breakage in the pump.
Avoid operating the pump with damaged diaphragms.
The maximum surface temperature of the pump depends on the temperature of the
pumped uid, that must not exceed the values indicated in the section "Technical Data".
Fluids incompatible with the pump’s materials or particularly reactive mixtures of products
with several components may cause exothermic reactions and develop dangerous
temperatures or pressure.
Connection cables must be made of conductive material and properly grounded.
If the pumping uids contain solid particles, install a lter on the intake circuit. This
prevents particles, that are large enough to damage the internal parts of the pump, from
entering. Refer to the paragraph Technical Data to verify the maximum size of solids that
can be pumped.
Keep the metal surfaces clean. Electric conductivity of the surfaces is essential for explosion
protection.
Frequently clean the equipment so as to prevent residue of insulating substances from
accumulating.
Do not use rusted parts or metal tools that may cause sparks of a mechanical origin inside
the explosion hazard area.