Piusi MA 130 Instrucciones De Uso Y Mantenimiento página 48

WARNING
WARNING
WARNING
WARNING
For installation and use in a potentially explosive environment, comply with these
general precautions:
- ascertain that the pump is full and if possible, that the level is above it by 0.5 m;
- ascertain that the fluid treated does not contain or cannot contain large solids or
solids of a dangerous shape;
- ensure thet the intake or delivery ports are not obstructed nor limited to avoid
cavitation or pneumatic motor strain;
- also ascertain that the connection piping is strong enough and cannot be de-
formed by the pump weight or by the intake. Also check that the pump is not bur-
dened by the weight of the piping.
- If the pump is to stay in disuse for a long period of time, clean it carefully by running
a non-flammable liquid detergent through it that is compatible with the pump's
construction materials;
- if the pump was turned off for a long period of time, circulate clean water it in for
some minutes to avoid incrustations.
- before starting, after long periods of disuse, clean the internal and external surfac-
es with a damp cloth;
- check the grounding;
- always protect the pump against possible collisions caused by moving objects or
by various blunt materials that may damage it or react with its materials;
- protect the pump's surrounding ambient from splashes caused by accidental
pump failure;
- if the diaphragms are completely torn, the fluid may enter the air circuit, damaging
it, and be discharged from the exhaust port. It is therefore necessary for the exhaust
port to be conveyed by pipes to a safe area.
use of the pumps in a manner that does not comply
with the instructions indicated in the use and main-
tenance manual will cancel all the requirements for
safety and protection against of explosions.
the maximum allowed temperature for process
fluids or powder is equal to 65/95°C depending on
the construction materials; if exceeded, respect of
the maximum temperature marked on the machine
cannot be guaranteed.
before intervening on the pump and/or
servicing or repairing it, please note that you must:
A. Discharge any product that was being pumped
B. Wash it internally using a suitable non-flammable
fluid, then drain.
C. Cut-off the air supply using the relevant valve
and make sure that no residual pressure remains
inside it.
D. Close all on-off valves (delivery and intake sides)
relative to the product;
E. Disconnect the network air supply;
F. Wear suitable individual protection before any
maintenance or repair (goggles/face protection,
gloves, closed shoes, aprons and others).
before using the pump, make sure that the fluid
to be pumped is compatible with the explosion
protection class and with construction materials of
the pump: danger of corrosion,product spills and/or
explosions caused by chemical reactions.
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