WAGNER PM500, Operating Manual, Page: 16 / 52

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OPERATING MANUAL
VERSION 01/2013 ORDER NUMBER DOC 2335747
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 fl uid inside). The air, combined with the
vapor of fl ammable fl uids, can generate internal areas with an explosion hazard.
Periodically check that the pump is working regularly, paying special attention to the
presence of air in the pumped fl 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 fl uid, that must not exceed the values indicated in the "Technical Data" chapter.
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 pipes must be made of conductive material and properly grounded.
If the pumping fl uids contain solid particles, install a fi 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 Technical Data chapter to verify the maximum size of solids that can
be pumped.
Keep metal surfaces clean. Electric conductivity of the surfaces is essential for explosion
protection.
Frequently clean the equipment so as to prevent insulating substance residue from
accumulating.
Do not use rusted parts or metal tools that may cause sparks of a mechanical origin inside
the explosion hazard area.