9
ascertain that the fluid treated does not contain or cannot contain large solids or solids for a dangerous shape
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ensure that the intake or delivery ports are not obstructed
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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
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detergentthrough 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 incru-
•
stations
WARNING:The use of dampeners for flammable liquids
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is forbidden if they are made of non-conductive
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materials that charge statically (plastic materials) and without suitable grounding DANGER OF EXPLOSION CAU
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•
SED BY STATIC CHARGES
START UP
check the correct execution of what indicated in the INSTALLATION paragraph
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check that the intake and delivery pipes of the hydraulic circuit are correctly connected
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open the intake and delivery valves of the pump hydraulic circuit
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open the 3-way valve on the air circuit
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set the operation point requested for the pump: properly adjust the air pressure and delivery that supplies the pump.
•
With pressure values under 2 bar the pump may stall, with pressure values above 7 bar it is possible that brea-
kdowns and/or yields may occur with consequent spillage of the pumped fluid
for pumps with split manifold the two pumped fluids must have the same viscosity value, very different viscosity
•
values may lead to stall problems and/or diaphragms breaking
do not operate at the limits of the operation curves: the maximum head or maximum delivery (total absence of leaks
•
and intake height in the delivery circuit)
check that there are no anomalous vibrations or noise due to the too elastic support structure, unsuitable fastening
•
or cavitation
after 2 hours of operation stop the pump correctly and check the tightening of all the bolts on the dampener
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WARNING: never start the dampener with the product valves closed: danger of diaphragm breakage
STOP
To stop the pump and dampener, operate exclusively on the air supply closing the 3-way valve, discharging in this
•
way residual pressure from the pneumatic system of the pump.
WARNING never stop the pump and dampener by totally closing the suction and/or delivery valves of the hydraulic
circuit
USE
do not operate valves or shunts during the pump operation
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risk of harmful water hammers in case of incorrect or sudden operations (valves must be operated only by trained
•
personnel)
empty and wash accurately inside the dampener in case different fluids must be pumped
•
insulate or empty the dampener if the fluid crystallization temperature is equal to or below the ambient temperatu
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•
re
stop the pump if the fluid temperature exceeds the maximum allowed temperature indicated in the GENERAL NO
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•
TES; if the exceeding temperature is about 20% it is necessary to inspect the status of the internal parts
stop the pump and close the valves in case of leaks
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wash with water only if chemical compatibility allows it ; alternatively use the suitable solvent that does not generate
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hazardous exothermic reactions
consult the fluid supplier to decide the most suitable fire-prevention method
•
empty the dampener in case of long periods of disuse (particularly with fluids which are particularly tending to cry
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•
stallize)
check that there is no gas in the delivering fluid, if there is stop the pump
•
WARNING: never stop the dampener and the pump when it is running and/or when the pneumatic circuit is under pres-
sure by closing the intake and/or delivery valves on the fluid circuit: danger of premature wear and/or breakage of the
diaphragm
