In mechanical applications, industrial systems, hydraulic systems, and other systems, seals play an irreplaceable and important role. They prevent leakage, maintain stable pressure, and ensure efficient and safe operation of equipment in the system. Different seals are used in different systems and equipment. Understanding the importance of seals in industrial systems is one of the key factors to maintain stable operation of the system.
Seals can be divided into many types according to different classification methods. The following are some common types of seals.
The performance of different materials directly affects the life and reliability of seals. Therefore, it is very important to choose seals made of suitable materials. The main materials of seals are as follows.
Seals have many advantages, which make them play an important role in industrial systems.
Seals can withstand pressures of up to hundreds of megapascals in industrial systems, ensuring that the fluid medium transmitted in the system will not leak. For example, in a hydraulic press, seals that can withstand high pressure can effectively prevent liquid leakage and keep the system running stably.
Because the fluid in the industrial system is always in motion, it will cause wear on the surface of the seal. Therefore, seals are usually made of wear-resistant materials to extend their service life. For example, in a system that requires uninterrupted transmission of fluid media, the wear resistance of the seal is the key to ensure its long-term operation. Such seals with excellent wear resistance will also have a long service life and good durability.
Industrial systems are often accompanied by high or low temperature environments, and the temperature resistance range of seals is very wide, and they can maintain stable performance even at extreme temperatures. For example, in oil field drilling equipment, the temperature conditions are very harsh, and the seals can also operate stably.
Seals are usually quick and easy to install, requiring very little equipment and system downtime, which can effectively improve the efficiency of maintenance and replacement.
The seals required by systems in different industries are also different. Before choosing a seal, make an appropriate choice based on your industry.
Seals can be used to prevent chemical leaks and cope with extreme temperatures and corrosive environments. Corrosion-resistant PTFE and metal materials are usually used for seals.
In this industry, it is necessary to select seals with food-grade standards, such as EPDM and silicone rubber, to ensure the safety and hygiene of the food and beverages being transported.
The medical industry also has high requirements for seals, because they need to be used in sterile equipment and systems, so they need to meet medical and health requirements while ensuring sealing. The material of the seal needs to not react with the transmitted drug medium to avoid affecting the quality of the medium.
This industry requires seals that are resistant to high temperatures and pressures, and usually chooses seals made of graphite composite materials or metal materials to ensure superior sealing performance.
Select different seals according to different system working environments. For example, fluor rubber is suitable for high temperature environments, while silicone rubber is more suitable for extremely low temperature environments.
In an environment with many corrosive substances, such as acid, alkali, and solvents, it is necessary to select seals with high corrosion resistance, such as fluor rubber and PTFE, to ensure that the seals can perform their due effects in a long-term and stable manner.
Considering the use effect of seals, good durability and long service life are essential. Choosing seals with high-cost performance and long service life can effectively reduce the cost of long-term operation, maintenance and replacement.
It is obvious that industrial systems cannot do without the key role of seals. Choosing the right seals for different industries and systems can effectively reduce operating costs and improve operating efficiency. They can provide good air tightness for the system and are widely used in industries such as chemical industry, automotive industry, oil and gas.
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