Viton Shaft Seal

About Viton Shaft Seal

Viton shaft seal usually consists of two main parts: sealing ring and sealing seat. The sealing ring is an annular sealing material, usually made of fluororubber. The seal seat is a metal component fixed to the shaft, usually made of steel or cast iron. The gap between the seal ring and the seal seat is filled with lubricating oil to reduce friction and wear.

Working Principle

The working principle of viton shaft seal is to use the friction and pressure between the sealing material and the shaft surface to form a sealing layer to prevent liquid or gas leakage.

When the shaft rotates, friction and pressure will be generated between the sealing ring and the shaft surface, and lubricating oil will be brought into the space between the sealing ring and the shaft surface, forming a lubricating oil film. This lubricating oil film prevents liquid or gas leakage and reduces friction and wear between the sealing ring and the shaft surface.

In addition, viton shaft seal is also resistant to corrosion, high temperature and wear, and can maintain good sealing performance in various harsh environments.

Advantages

1. Corrosion resistance: viton shaft seal has excellent corrosion resistance and can resist the erosion of most chemical substances, including acids, alkalis, solvents, etc. Therefore, it is widely used in chemical industry, petrochemical industry, pharmaceutical and other fields.

2. High temperature resistance: fluororubber shaft seal can maintain good performance at high temperatures, and its long-term use temperature can reach above 250°C. This makes it widely used in machinery and equipment working in high temperature environments.

3. Wear resistance: Fluorine rubber shaft seal has good wear resistance and can be used for a long time without wear. This makes it very effective in sealing rotating shafts.

4. Good elasticity and adaptability: The rubber shaft seal has good elasticity and adaptability and can fit tightly on the shaft, thereby better preventing leakage.

5. Good electrical properties: The rubber shaft seal has good electrical properties and can resist the effects of electric shock and static electricity.

Application Industries

1. Chemical industry: In the chemical industry, there are a large number of corrosive substances such as acids, alkalis, and solvents. viton shaft seal can effectively seal these corrosive substances and protect the safety of the environment and equipment.

2. Petrochemical industry: The petrochemical industry involves a large number of high temperature, high pressure, and highly corrosive environments. Rubber shaft seals can maintain good sealing performance in these environments and improve the safety and stability of the equipment.

3. Pharmaceutical field: The pharmaceutical field has very high requirements for the cleanliness and hygiene of production equipment. Fluorine rubber shaft seals can effectively prevent material leakage and contamination and ensure smooth production.

4. Machinery manufacturing: In the field of machinery manufacturing, viton shaft seal is widely used in sealing various rotating shafts, such as pumps, compressors, centrifuges, etc. It is resistant to most chemicals while maintaining good performance in high and low temperature environments.

5. Semiconductor manufacturing: In the field of semiconductor manufacturing, rubber shaft seals are used to seal various chemicals during the manufacturing process. Because these chemicals are highly corrosive and toxic, fluoroelastomer shaft seals provide a reliable seal that protects operators and the environment.

6. Aerospace: In the aerospace field, fluororubber shaft seals are used for sealing in various high-temperature, high-pressure, and highly corrosive environments. For example, in the fuel system of rocket engines, fluororubber shaft seals can resist corrosion and high temperatures of the fuel, ensuring the safety and reliability of the system.

Maintenance Recommendations

1. Regular inspection: Regularly check the wear and sealing performance of the viton shaft seal to ensure that there is no leakage or excessive wear. If an abnormality is found, it should be dealt with in time.

2. Keep it clean: Keep the rubber shaft seal clean to avoid contamination from impurities and dirt. During installation and disassembly, care should be taken to avoid bringing foreign matter between the sealing ring and the shaft surface.

3. Replace lubricating oil: Replace lubricating oil regularly to maintain lubrication between the sealing ring and the shaft surface. The selection of lubricant should match the seal and working environment.

4. Adjust the pressure: If the working pressure of the viton shaft seal is too high or too low, its sealing performance and service life may be affected. Therefore, adjustments should be made as needed to maintain appropriate pressure.

5. Avoid overload: Avoid overload operation of the fluororubber shaft seal to avoid excessive wear or damage to the seal.