The general pump seal refers to a device installed and operated in the pump equipment to play a dynamic sealing role to prevent the fluid medium in the pump volute from flowing out of the pump through the pump shaft.
As most pumps are used to transport fluid medium, they have the characteristics of the horizontal installation, high speed, high pressure, solid particles, and strong corrosion. Therefore, the main material of the seal for the pump often needs to resist the erosion and impact of solid particles and the sealing surface caused by high speed. Due to the influence of unfavorable factors such as high-temperature abrasion, unstable sealing parameters caused by high pressure, and corrosion of base structural parts, higher requirements for mechanical seal materials are required.
Usually, the optional materials of the sealing surface friction pair are nickel-based cemented carbide, cobalt-based cemented carbide, pressureless sintered silicon carbide, reactive sintered silicon carbide, metal-impregnated graphite, PTFE-filled graphite, PTFE-filled glass fiber, aluminum oxide special ceramics, etc.;
The base material can be selected from 2Cr13 stainless steel, 301 stainless steel, 304 stainless steel, 316 stainless steel, 316L stainless steel, 904L stainless steel, PTFE, etc.; the optional material for spring compensation parts is Hastelloy, 1Cr18Ni9Ti, 3Cr13, etc.;
Different from the mechanical seal used in the kettle, the sealing medium of the pump seal is mostly liquid, solid-liquid mixture and atmospheric gas, etc.; while the mechanical seal used in the kettle is mostly used to seal high-pressure gas or gas-liquid mixture, leakage will cause serious threats to the environment and organisms.
The pump seal is one of the basic mechanical components with precision and complex structure and is a key component of pump machinery. Its sealing performance and service life depend on many factors, such as model selection, machine accuracy, correct installation, use, etc. There are many types of pump seals. Different models, their maintenance is also difficult to distinguish and judge.
Akman Seals, as a pump seal company, sells various types of mechanical seals. If you are interested in mechanical seals, you can pay attention to our website.
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