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What are the advantages of spraying PTFE on petroleum accessories

Source:m.zhanfen.cn      Release date: 2024年12月23日
Information summary:1. Excellent chemical stability PTFE has strong chemical corrosion resistance. In the petroleum industry, petroleum accessories often come into contact with various corrosive chemicals, such as sulfides, acidic components, saltwater, and various organic solvents in crude oil. PTFE coating can effectively resist the corrosion of these chemicals and prevent accessories from being corroded. Fo
1. Excellent chemical stability
      PTFE has strong chemical corrosion resistance. In the petroleum industry, petroleum accessories often come into contact with various corrosive chemicals, such as sulfides, acidic components, saltwater, and various organic solvents in crude oil. PTFE coating can effectively resist the corrosion of these chemicals and prevent accessories from being corroded. For example, inside oil pipelines, corrosive components in crude oil constantly come into contact with the pipe wall. After spraying PTFE, it acts as a strong chemical shield, isolating the pipe wall from corrosive substances, greatly extending the service life of the pipeline and reducing the risk of leakage caused by corrosion.
2. Good temperature resistance
      PTFE coating can maintain stable performance over a wide temperature range. It can withstand temperatures ranging from -190 ℃ to+260 ℃. In the process of oil extraction and processing, whether in the high-temperature refining process or in the cold polar oil well extraction environment, PTFE coated oil accessories can work normally. For example, PTFE coating can effectively protect accessories near high-temperature oil cracking furnaces, or accessories on outdoor oil well equipment in cold northern winters, preventing them from being damaged by temperature changes.
3. Low friction coefficient and self-lubricating properties
     There are many moving parts in petroleum equipment, such as pump rotors, valve cores, etc. The low friction coefficient of PTFE coating can reduce the friction between these components. This can not only reduce energy loss during equipment operation, improve energy utilization efficiency, but also reduce component wear. Moreover, the self-lubricating property of PTFE allows for relatively smooth movement between components even without additional lubricants. For example, spraying PTFE on the impeller of an oil transfer pump can make the impeller smoother during rotation, reduce friction with the pump casing, lower the energy consumption of the pump, and also extend the service life of the impeller.
4. Non sticky
     Crude oil contains wax, asphaltene, and other viscous impurities. These impurities are prone to adhere to the surface of petroleum fittings, affecting their performance and normal operation. The non adhesiveness of PTFE coating can prevent the adhesion of these impurities and keep the surface of the accessory clean. For example, after spraying PTFE on the inner wall of an oil storage tank, impurities in the crude oil are less likely to adhere to the tank wall, which facilitates the cleaning and maintenance of the storage tank and reduces the impact of impurities on the quality of the crude oil.
5. Good electrical insulation
     There is a risk of static electricity generation and accumulation in some petroleum equipment. PTFE coating is an excellent electrical insulator that can prevent the conduction and accumulation of static electricity. This helps to reduce safety accidents such as fires or explosions caused by static electricity. For example, at the flange connection of an oil pipeline, if static electricity accumulates, it may cause sparks and lead to oil and gas explosions. PTFE coating can effectively isolate static electricity and improve the safety of petroleum equipment.
6. Biocompatibility (in specific scenarios)
     In some oil extraction environments, such as offshore oil extraction or reservoir environments with the presence of microorganisms, the biocompatibility of PTFE coating can prevent the attachment and growth of microorganisms on the surface of accessories. This is of great significance for maintaining the performance of accessories and preventing issues such as biological corrosion. For example, PTFE coating can reduce the attachment of marine organisms to underwater components of offshore oil platforms, avoiding problems such as increased equipment weight, increased water flow resistance, and microbial erosion of components caused by biological attachment.
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