IMP Pumps CL, CLD, CB - Manual (Page 17)

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watertight packaging so that no parts can
come into contact with water.
Special protection should be given to
the bearing and neighbouring parts,
which should be protected from
moisture, dirt, and mechanical damage.
All safety precautions that inhibit
damage from moisture and dirt must be
complied with.
5.4 Connection
Correct
Correct
Incorrect
• When connected to the piping system,
the suction pipe must raise towards the
pump to prevent the formation of an air
cushion. The formation of mechanical
stresses on the pump and piping
system must be prevented with the
installation of bearers and supporters.
• When planning, the proper selection of
the nominal pipe diameters is extremely
important, as well as with the transition
from smaller to larger diameter pipes,
where the corners should not exceed 8
degrees. During larger operating
pressures, this should not exceed 5
degrees.
• The design engineers must also
provide for the installation of locking
and non-return valves. The
compensation elements will help avoid
inconveniences during temperature
changes. The piping system must not
be overburdened to avoid possible
leakages of the medium, which is
especially dangerous at higher
temperatures.
• Before installing the suction pipe to
the pump, all safety measures must be
completed that no impurities and other
residual solids enter the pump and
damage it. Therefore, prior to this, it is
necessary to clean and blow out the
pipe, or install a protective filter before
the pump, which will prevent the
penetration of harmful particles to the
functionally important parts of the
pump.
• The pump must not operate with
closed lock valves in a pressure
installation. This causes heightened
temperatures and the development of
steam, which can damage the pump.