The magnetic pump housing is composed of the pump body and pump cover, which are responsible for withstanding all the operational pressure of the pump. The hydraulic design of the impeller in the pump body adheres to the API685 standard, making it a key element that determines the pump's hydraulic performance. Its primary function is to induce liquid rotation, converting mechanical energy from the prime mover into fluid energy. This component plays a crucial role in ensuring the efficiency and reliability of the magnetic pump.
The rotor assembly of the magnetic pump consists of two main sections: one mounted on the pump shaft and another on the driving shaft. The pump shaft serves as a critical component that supports the impeller and inner rotor while transmitting torque. The rotating parts attached to the pump shaft include the impeller, bearing, thrust ring, and inner magnetic rotor, collectively forming the portion of the rotor that comes into contact with the pumped medium. Meanwhile, the rotating components on the drive shaft consist of the outer magnetic rotor, rolling bearings, drive shaft bushing, and the drive shaft itself, creating the part of the rotor that remains isolated from the medium.
The connecting section of the magnetic pump includes the frame and bearing housing, which serve as static elements for support and alignment. Sliding bearings, bushings, and thrust plates provide essential support and positioning for the rotor assembly, ensuring smooth operation and stability.
The transmission system of the magnetic pump is typically connected using a diaphragm coupling between the pump and the prime mover. This design allows for easy maintenance, as the magnetic diaphragm can be accessed and repaired by simply removing the intermediate diaphragm of the coupling.
The inner and outer rotors work together to form the magnetic coupling mechanism, enabling the transfer of rotational motion without direct mechanical contact. This feature significantly enhances the pump’s sealing capabilities.
One of the most important components of the magnetic pump is the isolation sleeve, which is the only part that ensures complete leak-proof operation. It separates the rotating and stationary components, preventing any leakage of the pumped fluid.
Since the pump shaft is exposed to the working medium, it must be made from materials that offer high corrosion resistance, precise manufacturing, and sufficient strength. In some cases, heat treatment is applied to further enhance its mechanical properties.
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