MST ZW, Operation

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06
PUMP INSTALLATION
1
2
3
4
A 3.5
B
C
2-3
D
5
6
7
8
3-4
70
9
12 M12 1.5
1. With the shafts of both pump and motor linked in actu
tion, pay attention to the concentricity between the pump
shaft and the motor's output; and carefully mount and
calibrate the pump as which will leave a bigger affection
to the running stability and duration of it.
2. Fasten the nut on the pump's clutch, or the impeller may
be made easily movable to cause a mechanical failure.
3. Have the pump inlet higher than the central line of the
pump shaft so as to have a certain volume of liquid kept
inside of the pump to get a better self-suction capacity
and prevent the mechanical seal from drying friction.
4. Cautions for the installation of the suck-in pipeline:
A.The installation height of the suck-in port shall not be
over 3.5m and, if the condition is allowed, lower than
the lowest water storing surface as can as possible and
make the length of the suck-in pipe as short as possible
and the elbow less mounted so as to shorten the self-su-
ction time and enhance the self-suction function.
B. The valve, flange etc. inside of the suck-in pipeline
shall be prevented from air or liquid leaking, that means
no air-leaking is allowed inside of it.
C. To prevent any solid etc. impurities from sucking into
the pump, a filter should be set on the suck-in pipeline,
with the effective filtering area 2-3 times the section of
the pipeline and the filter checked in a periodic time.
D. Get both suck-in and vomiting pipelines a stand of
their own and do not let the pump bearing any pipeline.
5. During installation of the pump, make the static ground-
ing resistance of it and the pipeline up to the set require-
ment.
6. Check if there is stones, iron sand or any other impurity
inside of the pump casing and the pipeline in installation.
7. Take a final check after the unit actually runs for 3-4h
and it is deemed for the installation to have been well
done if non-bad condition. Check the bearing temperature
during trial, which shall not be over 70 .
8. For the bearing body of t he p ump s et w ith a co oling ro om ,
use a rubber or plastic pipe of a 12mm diameter inner
hole to fit the cooling liquid union, the thread size is
M12x1.5.
9. When the pump can not successfully exhaust the air du-
ring the self-suction process due to an one-way valve
which is mounted on the outlet pipeline of it, set a small
exhaust pipe and valve at the outlet.
ZW SELF-PRIMING PUMP