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Pump mechanical seal is a device installed in pump equipment for dynamic sealing, mainly used to prevent the fluid medium in the pump volute from flowing out of the pump through the pump shaft. This sealing device consists of at least one pair of end faces perpendicular to the axis of rotation, which are maintained in contact and slide relative to each other through the cooperation of fluid pressure, compensation mechanism elasticity (or magnetic force), and auxiliary sealing, thereby preventing fluid leakage. Mechanical seals, commonly known as "mechanical seals," are one of the main shaft seals in rotating fluid machinery, with the advantages of low leakage and long service life.
The product features of mechanical seals for water pumps include:
Simple structure: composed of a pair of sealed end faces, relatively easy to manufacture and install.
Widely applicable: Suitable for various pump equipment such as centrifugal pumps, centrifuges, reactors, and compressors, among which submersible electric pumps are commonly used.
Material diversity: The sealing ring material can be selected according to the usage conditions, such as tungsten carbide or silicon carbide for high demand applications, and aluminum oxide ceramics, silicon nitride or other harder materials for lower demand applications.
Good sealing effect: can effectively reduce leakage, improve system safety and efficiency.
In specific applications, such as the WB2 mechanical seal, the dynamic ring uses carbon fiber, the static ring uses 99 ceramic, and auxiliary materials include PTFE, stainless steel, etc. This seal is suitable for conveying corrosive media that do not contain hard solid particles and do not rapidly solidify, such as acids. Its structure does not require cooling water and has the advantages of easy installation and good interchangeability.
In summary, the mechanical seal of the water pump is an indispensable component in the water pump system. Through its simple structure and effective sealing performance, it ensures the normal operation of the pump and the safety of the system. Choosing the appropriate type and material of mechanical seal is crucial for improving system efficiency and extending equipment lifespan
