The
ssump pump is suitable for long-term transportation of various
corrosive media such as strong acids, alkalis, salts, and strong
oxidants of any concentration. In the actual use process, you may
encounter a series of problems. Today, We will introduce the precautions
for the use of submerged pumps.
1. Matters needing attention
1)
The outlet pipeline of the pump should be supported by another bracket,
and its weight is strictly prohibited to be supported on the pump.
2)
After the pump is assembled, rotate the coupling to see if it rotates
flexibly. Check whether there is (metal) rubbing sound, and whether the
nuts of each part are tightened.
3)
Check the concentricity of the pump shaft and the motor shaft. The
difference between the outer circles of the two couplings must not
exceed 0.3mm.
4)The
distance between the suction port of the pump and the bottom of the
container is 2 to 3 times the suction diameter, and the distance between
the pump body and the wall is greater than 2.5 times the diameter.
5) Check the rotation direction of the motor so that the rotation direction of the pump conforms to the indicated direction.
6)
Refer to the relevant instructions in "Precautions for Using
Fluoroplastic Alloy Centrifugal Pumps" for starting, running and
stopping the pump.
2. Disassembly and assembly:
1)
If the impeller is changed or checked, the outlet valve can be closed,
the flange connection bolts and bottom plate connection bolts are
removed, and the pump is lifted out of the container with a lifting
tool.
2)
Remove all the bolts of the pump body, take out the pump cover and the
impeller nut, lightly tap the pump body with a double hammer, and then
the impeller can be removed.
3)
If the rolling bearing or packing is replaced, the bottom plate will
not move, remove the motor and corresponding bracket, remove the pump
coupling, gland, round nut, and take out the bearing body.
To replace the packing, first remove the packing gland, then remove the packing to be replaced.
4)The
order of assembly and disassembly is opposite, and attention must be
paid to the concentricity of the accessories on the shaft.
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