Significant to improve the life of magnetic pumps （China Copyright Registration-2016-A-00287100）

Magnetic pumps have been widely used in the transport of various liquid chemicals. As a manufacturer, with what structure, configuration to produce magnetic pump products and different structural forms and configurations, will bring different results to customers.

The first aspect is the pump structure form, as a transport chemical media magnetic pump products, in the design of the product, the first thing to consider is the reliability of the pump, safety, service life and other major elements. These main elements, involving a pump can be kept running for a long time without maintenance and less maintenance, as well as the consumption costs to the user, the cost of accessories with the unseen and untouchable environment, safety issues. Therefore, there is a need to design and manufacture a magnetic pump that can ensure the stability of each component size under different temperature, pressure and bearing conditions, so as to achieve long-term operation of the pump without failure, which is a product designer should be the idea and concept. Should not be used to reduce the weight of products and product quality, to achieve lower product costs, the low-cost, low-cost magnetic pump, delivered to the user to use.

The second aspect is the configuration of the pump friction parts, as a magnetic pump products, pump wear parts are often rotating in the liquid friction parts, sliding bearings, thrust bearings, bushings. The wear resistance of these parts will directly affect the service life of the pump and the cost of replacement parts for users. Internationally famous magnetic pump manufacturers, whether metal or plastic magnetic pump, sliding bearings, thrust bearings, bushings are used corrosion-resistant, excellent wear resistance silicon carbide material. However, the bending strength of silicon carbide is only 451Mpa, the material is brittle, and the impact resistance is poor. Therefore, in the case of corrosive conditions, we can choose tungsten carbide material with bending strength of 1471 Mpa, which is three times higher than silicon carbide and has good impact resistance. Tungsten carbide has the advantages of good toughness and good impact resistance compared with silicon carbide. If the pump dry wear, unlike silicon carbide material will be broken, causing the inner magnet and isolation sleeve and other parts of the touch, resulting in damage to the pump. Magnetic pump wearing parts using silicon carbide, which can make the pump can run for a long time without maintenance. The service life is longer than the configuration of tetrafluoro-graphite, graphite, aluminum oxide, silicon nitride and other materials. It can reduce the cost of replacing wearing parts with other parts frequently in a short period of time by users due to factors such as wear-resistant and poor strength of wearing parts, as well as environmental and safety costs.

Magnetic pump is used to transport corrosive, flammable, explosive, toxic chemical media. The safety, reliability and service life of the pump is very important. If the pump appears due to unreasonable factors of construction and configuration, it will bring many troubles and negative effects to the user, and the direct and hidden costs cannot be estimated.