11
SAFETY RULES
WARNING! CHEMICAL RISK. Pumps are intended for operation with different types of fluids and chemical solutions.
Follow the specific internal instructions for decontamination during the inspection or maintenance operations.
WARNING: the diaphragms (into contact with the product and external) are components extremely subject to wear.
Their duration is strongly affected by the conditions of employments and by chemical and physical stresses. By tests
carried out on thousands of pumps installed with head value from 0° to 18°C, the ordinary life exceeds one hundred
million cycles. For safety reasons, in environments with explosion risk it is necessary to disassemble and check the
diaphragms every five million cycles and to replace them every twenty million cycles.
WARNING! In the case of diaphragms total breaking, the fluid may enter in the pneumatic circuit, da
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mage it and come out from the discharge port. Therefore it is necessary to convey the air discharge in
a piping up to a safe area.
WARNING! In situations where the user foresees the possibility of exceeding the temperature limits
indicated in this manual, it is necessary to install a protection device on the equipment that prevents
to achieve the maximum operating temperature allowed. If exceeded, respect to the maximum marking
temperature is not guaranteed.
REMEMBER! Safety risks to persons are mainly caused by improper use or accidental damage.These
risks may be of hand injury for operators working on the open pump, or caused by the nature of the fluids
that are conveyed by this type of pump. Therefore it is extremely important to diligently carry out all the
instructions contained in this manual in order to eliminate the causes of accidents that may lead to the
pump failure and to the subsequent outcome of fluid hazardous to persons and to the environment.
For installation and use in a potentially explosive environment, comply with these general precautions:
ascertain that the dampener 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
also ascertain that the connection piping is strong enough and cannot be deformed by the dampener’s weight or by the
intake. Also check that the dampener is not burdened by the weight of the piping
if the dampener is to stay in disuse for a long period of time, clean it carefully by running a non-flammable liquid deter
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gent through it that is compatible with the dampener’s construction materials;
if the dampener was turned off for a long period of time, circulate clean water in it for some minutes to avoid incrusta-
tions
before starting, after long periods of disuse, clean the internal and external surfaces with a damp cloth
check the grounding
always protect the dampener against possible collisions caused by moving means or by various blunt materials that may
damage it or react with its materials;
protect the dampener’s surrounding ambient from splashes caused by accidental dampener failure
WARNING: the air supply pressure must never be over 7 bar or below 2 bar
WARNING: when using the pump with aggressive or toxic liquids or with liquids that may represent a health hazard you
must install suitable protection to contain, collect and signal any spills: danger of pollution, contamination, injuries and/
or death
WARNING: the dampener cannot be used with fluids that are not compatible with its construction materials or in a place
containing incompatible fluids.
WARNING: installing the dampeners without on-off valves on the intake and delivery sides to intercept the product in
case of spillage is forbidden: danger of uncontrolled product spillage.
WARNING: installing the dampeners without on-off, three-way or check valves on the air supply piping to prevent the
pumped liquid from entering the pneumatic circuit if the diaphragms are broken is forbidden: danger of fluid entering the
compressed air circuit and being discharged into the environment
WARNING: should the user think that the temperature limits set forth in this manual may be exceeded during service, a
protective device must be installed on the system that prevents the maximum allowed process temperature from being
reached. If exceeded, respect of the maximum temperature displayed on the marking is not guaranteed
WARNING: the dampener must always be grounded irrespective of any organ to which they are connected. Lack of
grounding or incorrect grounding will cancel the requirements for safety and protection against the risk of explosion
