Operating manual
AQUA S.p.A.
ENGLISH
Page 16
PROTECTION BY IMPURITIES:
IMPORTANT
The pump may be able to transfer suspended solid parts (not soluble), but this feature must be considered a
disturb for the plant because they could create cloggings and damages.
In order to reduce this issue or further damages created by solid parts into the pipes, pump-head and valves,
we recommend keeping the suction pipe at 10cm from the bottom of the tank and (excluded exceptional
cases indicated in following) use an adequate tool to filter.
Filter mesh must be according to the dosed fluid.
LIQUIDS WHIT GAS EMISSIONS:
IMPORTANT
Products with large gas emission, may cause corrosion and maintenance accessibility issues, in case of
vertical suction pipe directly above the tank. A side draw is recommended, ensuring to keep a soft slope to
allow further gas escape toward tank side.
CALIBRATION POT
Installed on suction pipe, derivate between tank and pump, allows the calibration of actual pump flow rate in service during the normal use.
DISCHARGE PIPE
•
Piping route must be as linear as possible and independently supported to avoid that weight or thermal expansions would cause deformation
or excessive stress on the pump.
•
It is recommended to install some “T” connections to allow easy installation of eventual accessories such as manometers, valves or pulsation
dampeners.
•
In case the pump is installed below the chemical level drawing, consider to install a counter pressure valve to avoid syphoning.
•
Discharge pressure must be at least 0,5 bar more than suction pressure.
•
For a correct discharge pipe installation, consider the suggestions shown in the below drawings:
SYPHON CREATED BY LEVEL DIFFERENCE TEND
TO TRANSFER LIQUID UNCONTROLLABLY.
A COUNTER PESSURE VALVE SET >1 Bar
CAN SOLVE THE ISSUE.
ALTERNATIVELY, BREAK THE LIQUID
TRANSMISSION AT A HIGHER LEVEL THAN THE
PUMP LIQUID END.
