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5 START-UP
PAGE
5.0
Date Name Signed Revision:
issued 23.06.03 Mangel Substitute for issue
approved 24.06.03 Denk of
released 24.06.03 Denk
text no. 30100
copy to:
5 Start-up
The NEMO
®
pump design requires strict attention to the following:
Never run the NEMO
®
pump dry!
A few rotations in dry condition
will damage the stator!
■ Before starting up for the first time, fill the pump with medium.
In the case of high viscosity media fill with a liquid.
Pump priming is vital to ensure lubrication of the rubber stator.
Fill the piping on the pump suction side.
In anti–clockwise rotation only: Fill the pump housing.
The NEMO
®
pump is a progressing cavity pump which can produce
pressures that may cause the bursting of vessels or pipes.
The power transmission train (shaft, coupling rod, joints, rotor)
of the pump may be overloaded thus resulting in damage
or breakage.
Also the pump housing parts with their connections may be
overloaded and break. There is a table in Section 4 of these
Maintenance and Operating Instructions showing the
pressure resistance of the pump housing parts.
Never run the pump against a closed inlet or outlet valve!
■ Open valves and vents before starting the pump!
■ Check the direction of rotation by briefly switching on
the pump motor.
GB
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