OPERATING MANUAL -
SAXMAG V
Page 21
To prevent entry of foreign matter, which may result in destruction of the pump, a suction filter
with a filter rating needs to be installed on the inlet side. Given its inner flow resistance, the
filter rating must be sufficiently large since it affects the pump's suction capacity.
Bends in the piping laid should have a radius as large as practical. Small-angle pipe elbows
should be avoided.
Pump type
Filter rating [mm]
V6, 12, V20, V25-2, V30-2, V60-2, V80.-2 , V100-2
0.5
6
Start-up and placing out of service
At the pump start-up phase, particular care must be taken to meet the requirements listed below so
as to avoid costly incidents - See in the manuals of the various pump versions which spare parts
are recommended for start-up.
Prior to starting the pump, it is crucial that the following checks be conducted:
Check the alignment of the pump with the supporting structure as may be provided, and the
motor. Check that the filter and the piping are free from remainders, small welded pieces, etc.
Flanges are required to have undergone a leakage test.
Piping must not exert an excessive load on the pump casing. See the max. permissible loads in
the technical section. Where the liquid can reach high temperatures it must be ensured that
expansion joints are installed in the piping. Check the motor’s electrical connections, the
balancing of the electric motor's power and the sense of rotation.
Check that the pump's direction of rotation is correct. The safety relief valve (if to be installed)
must be correctly mounted. Move the pump shaft and check to be sure that it rotates freely. The
pump interior, in particular on a self-priming pump, must not be dry. Fill or lubricate the internal
components with the fluid to be pumped or a fluid that is compatible with the latter.
All pumps are protected during installation by a passivating oily liquid. If the latter is not
compatible with the pumped fluid the pump must be removed and cleaned. Prepare the taps for
connecting a pressure gauge and a vacuum gauge.
Check that the oil reservoir in the vicinity of the seal/gasket is filled.
Do not use the gear pump for tests or final acceptance tests with water.
Consult customer service if fluids need to be pumped which differ from those for which the pump
has been sold.
Check that all valves are open.
Following pump starting, check that fluid has entered and the pump functions properly. Stop the
pump and inspect both the pump and the system if the pump is still running dry after one minute.
Summary of Contents for SaxMag V Series
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