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9.1 SAFETY RECOMMENDATIONS
To avoid the risk of ignition, bear in mind the following
points:
a) Prevent dust from accumulating on the valve
casing.
b) It is absolutely important to keep the protective
painting on the casing in good condition, owing
to the fact that, if there is any friction or shock,
the oxide would act as a high-risk source of
ignition.
c) It is essential to make sure that the valve is not
insulated from the earth connection of the
installation, since the different layers of paint
resulting from its maintenance create a plastic
insulation on the valve that favors the
accumulation of static electricity which, if not
eliminated correctly, can produce radiant
discharges that could lead to ignition.
d) When the valve has to be fitted to or removed
from the installation, use tools that do not
produce sparks from friction.