What are the differences between IMC (RMD/RMI), CQ, and CQB? After reading this, you’ll know which one to choose!

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The names of the IMC, CQ, and CQB magnetic pump series originate from two different standards for magnetic pumps in our country. So, what are the differences between IMC magnetic pumps and CQB-type magnetic pumps? Richter will explain them to you below! 1. High efficiency of IMC (RMD/RMI) magnetic pumps: IMC magnetic pumps (excluding those of the CQ type that are branded as IMC). Note: At present, a small number of CQ pump manufacturers and sellers are rebranding CQ pumps as IMC pumps in order to enter the petrochemical industry, as most petrochemical companies do not accept CQ pumps. Not only is the actual pumping efficiency of IMC magnetic pumps in most specifications roughly the same as that of mechanical-sealed pumps of the same specifications, but in some specifications the actual pumping efficiency of IMC magnetic pumps is even higher than that of mechanical-sealed pumps of the same specifications; only in a few specifications is the pumping efficiency slightly lower than that of mechanical-sealed pumps. 2. The IMC (RMD/RMI) magnetic pump features a rational structure: Its magnetic drive unit employs a unique coupling structure based on a dense magnetization design. This structure offers advantages such as balanced magnetic forces and high coupling efficiency; it makes use both of the attractive and repulsive forces of magnetic fields. As a result, it eliminates the risk of the magnetic drive unit coming loose under dynamic conditions, while also ensuring dynamic balance when transmitting torque. The benefits include small size, high torque, low eddy currents, high efficiency, and good reliability. 2. image1.jpg 3. The IMC (RMD/RMI) magnetic pump has a long service life: This is due to the rational overall design and component design of the IMC magnetic pump. In particular, it uses a unique axial force balancing method tailored to the structural and operational characteristics of magnetic pumps, which prevents mechanical friction between the end faces of the thrust bearings and the sliding bearings during operation. As a consequence, there is low natural wear and failure rate, resulting in a long interval between maintenance needs. The overall design and component design of the CQ magnetic pump are not entirely reasonable. For the balance of axial forces, only the traditional method used in mechanical seal pumps is employed; no new balancing methods tailored to the structural and operational characteristics of magnetic pumps are used. As a result, it is impossible to achieve balance between the end faces of the thrust bearings and those of the sliding bearings during operation, nor is it possible to avoid or eliminate mechanical friction between these two end faces. Hence, the failure rate is high, the maintenance interval is short, and the reliability is poor. 4. Advanced hydraulic model of IMC (RMD/RMI) magnetic pumps: The hydraulic model of IMC magnetic pumps is an optimized and advanced one; moreover, hydraulic components such as the pump body and impeller are manufactured using precision casting techniques to ensure accuracy in their hydraulic performance. In addition, IMC magnetic pumps are designed and manufactured in strict accordance with standard principles and requirements, with all measures taken to minimize various factors that can affect the performance of these pumps, especially those losses that impact efficiency, such as hydraulic losses (flow losses), volumetric losses, mechanical friction losses, eddy current losses generated in the magnetic drive system, friction losses of the internal magnetic rotor (including friction losses on the cylindrical surface and end faces of the rotor), and losses associated with cooling and lubrication systems. This approach ensures the high efficiency of IMC series magnetic pumps. The above is an explanation of the differences between IMC magnetic pumps and CQB-type magnetic pumps, provided by Ricite’s technical staff. As a high-quality manufacturer and supplier of pumps for use in the chemical industry, our main products include stainless steel magnetic pumps (insulated magnetic pumps, high-temperature magnetic pumps, magnetic pumps that can operate without load), fluorinated lining magnetic pumps, self-priming magnetic pumps, vortex magnetic pumps, pipeline magnetic pumps, chemical process pumps with shielding, pneumatic diaphragm pumps, electric diaphragm pumps, and chemical centrifugal pumps – all of which are corrosion-resistant, high-performing, leak-free models (RMD, RMI). For more information, please visit our official website: http://www.ricite.com/