Product description
Canned motor pump is composed of a shielded electric motor and a pump.
It is a power equipment used for conveying fluids.
The equipment is mainly composed of pump body, impeller, stator, rotor, front and rear bearings, thrust disc and other components.
The stator and rotor are separated by non-magnetic corrosion-resistant thin-walled sleeves, and the rotor is supported by front and rear bearings immersed in the conveying medium, so no type of dynamic seal is required to prevent the outward leakage of the conveyed medium.
Overall, shielded pumps are centrifugal unsealed pumps.
Shielded pumps are absolutely leak free, and under negative pressure inside the pump, external gases will not be sucked in, making them particularly suitable for vacuum system operation; At the same time, it is suitable for high pressure, high melting point, and high and low temperature media.
Shielded pump has a compact structure, small volume, and light weight; No cooling fan, low noise, wide range of use, reliable operation, can provide a relatively good working environment.
A typical shielded pump uses a portion of the conveyed liquid to cool the motor, and the annular gap is very small, so the conveyed liquid must be clean.
When transporting multiple liquid mixtures, if they produce precipitation, coking, or gel like substances, using a shielded pump (non mud type) at this time may block the shielding gap, affect the cooling and lubrication of the pump, and lead to burning of graphite bearings and motors.
Shielded pumps generally have circulating cooling pipes.
When the ambient temperature is below the freezing point of the pumped liquid, anti freezing measures such as accompanying pipes should be taken to ensure easy pump start-up.
In addition, when starting the shielded pump, the opening sequence of the outlet valve and the inlet valve should be strictly followed.
When stopping the pump, the outlet valve should be closed first.
After the pump stops running, the inlet valve should be closed first and then the outlet valve should be closed.
In short, by using a shielded pump, there is no leakage at all, effectively avoiding environmental pollution and material loss.
As long as the selection is correct and the operating conditions do not change abnormally, there is almost no maintenance workload under normal operation.
Shielded pumps are ideal pumps for transporting flammable, explosive, corrosive, and valuable liquids
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