Submersible pump reversal of the main hazards of the water pump:
1, there are rotational requirements of the mechanical seal may be damaged.
2, there are rotational requirements of the bushing lock nut, impeller lock nut (also called impeller and cap) may be loose. If the pin connection is used, the impact will not be great.
3, there is a balance disk or balance drum pump, may damage the balance disk or balance drum.
4, cause water hammer, damage the pump structure.
5, multi-stage centrifugal pumps (guide vane type) is easy to reach *** vibration speed, damage to the pump equipment (axial flow pumps need to consider the pump's flyaway speed).
Submersible pump reversal is mainly may burn or damage electrical components, may also cause damage to the motor shaft and bearings, just the degree of damage is different.
Expanded Information
Submersible electric pump unit consists of: water pump, submersible motor (including cable), water pipeline and control switch of four major components. The submersible pump is a single suction multi-stage vertical centrifugal pump; submersible motor is a closed water-filled wet, vertical three-phase squirrel-cage asynchronous motor, the motor and the pump through the claw or a single key cylinder coupling directly.
Equipped with different specifications of the three-core cable; starting equipment for different capacity levels of air switches and autocoupled pressure-reducing pneumatic device, the water pipeline for different diameters of steel pipe made of flange coupling, high-lift pumps using gate valve control.
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