4.3.4h
4.3.4i
of
INDUSTRIAL PUMPS
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rev
If used for drum suction (not below head), the submersed end of the intake hose must be provided with a diago-
nally cut xing to prevent it from adhering to the drum bottom.
In installations where the presence of solid particulate is foreseen, install a suitably oversized strainer (which does
not cause pressure drops) on the suction inlet, with a surface area of 2.5 / 3 times the area of the suction
pipe and passages smaller than the particulate allowed by the pump model being installed.
CAUTION: risk of pump damage.
It is forbidden to install the pump in the absence of a suitable correctly sized strainer.
Check that the treated uid does not contain any large solid parts or with a harmful shape and that there
are no restrictions to the pump inlet or outlet to avoid cavitation and stress to the pneumatic motor and
diaphragms.
In installations in a potentially explosive environment which involve the possible presence of solid parts suspended
in the uid, it is essential to install a correctly sized strainer to ensure the pump operates according to the
safety requirements set by the relevant marking.
CAUTION: risk of pump damage and cancelling of the marking requirements
It is forbidden to install the pump in the absence of a suitable correctly sized strainer.
Provide for periodic checks and maintenance of the installed strainer and of the suction and delivery
ducts in order to maintain and ensure the correct operation of the pump required by the marking for oper-
ation in a potentially explosive environment.
The product circuit connection is thus completed.
OK
OK
Strainer
OK
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