Seal selection considerations

Seal selection, here is a more detailed explanation of each factor:

Pressure: Seals must be able to withstand the pressure in the system to prevent leaks. Pressure is one of the important factors in selecting appropriate seals, and the appropriate sealing material and sealing structure usually need to be determined based on the maximum operating pressure in the application.

Temperature: The seal should be able to maintain good elasticity and sealing performance within the operating temperature range. The properties of sealing materials may change under high or low temperature conditions. Therefore, it is necessary to choose sealing materials that can adapt to the working temperature to ensure the sealing effect.

Hydraulic oil types: Different types of hydraulic oil have different chemical compositions and properties. Some hydraulic oils may have a corrosive or dissolving effect on seal materials, so it is important to select seal materials that are compatible with the hydraulic oil used.

How it works: How the seal works also needs to be considered. For example, seals may need to withstand high-frequency vibrations, severe shocks, or high-speed movements. In this case, it is necessary to choose a sealing material with good wear resistance, elasticity and deformability.

All in all, there are several factors to consider when choosing the right seal, including pressure, temperature, hydraulic fluid type and operating method. By comprehensively considering these factors, appropriate sealing materials and structures can be selected to provide reliable sealing effects and working performance.

In addition, there are some other factors that need to be considered:

Chemical Resistance: Seals must be resistant to chemicals that come into contact with them, such as acids, alkalis, solvents, etc. For special application environments, such as in the chemical industry or food processing, sealing materials with good chemical resistance need to be selected.

Sealing Effectiveness: The sealing effectiveness of seals is an important consideration. Good sealing performance can effectively prevent leakage and the entry of contaminants, thereby ensuring the normal operation of the system.

Longevity: Seals need to have sufficient life to reduce the frequency of replacement and maintenance. The sealing material should have good wear resistance and aging resistance to provide long-term reliable sealing effect.

Cost: The cost of the seal is also a factor to consider. Different seal materials and constructions may have different costs, and the appropriate seal needs to be selected based on application needs and budget.

To sum up, for the selection of seals, multiple factors such as pressure, temperature, hydraulic oil type, working method, chemical resistance, sealing effectiveness, life and cost need to be considered. By taking these factors into consideration, appropriate sealing materials and structures can be selected to meet the needs of the application and provide a reliable sealing effect.


Post time: Sep-24-2023