Mechanical Seals Selection Design
Mechanical seals are often used in rotary pumps to provide a static seal between the seal faces and the mating components. This is necessary to prevent the leakage of fluids which can cause costly contamination and other problems. The selection and design of mechanical seals is a complex process that requires careful consideration and knowledge of a wide range of factors.
The first step in the process is to select the correct mechanical seal for the application. There are a wide range of seals available on the market with different characteristics and features. Important considerations include the pressure and temperature of the application, the operating speed of the equipment, the size of the equipment and the type of fluid being sealed.
Once the seal has been chosen, the design must be finalized. This involves selecting the correct materials for the seals components, ensuring that the seal design can withstand the operating environment and determining the overall dimensions of the seal.
The most important aspect of selecting the correct materials for mechanical seals is to ensure that they are compatible with the fluid being sealed. Materials that are too hard may cause leakage, while materials that are too soft may wear too quickly. The selection of compatible materials can be based on the fluids chemical composition, pressure and temperature. In addition, all components must be strong, durable and resistant to corrosion.
It is also important to consider the operating environment of the equipment. Seals must be chosen which are capable of resisting the high pressure, temperature and vibration levels experienced. They must also be able to withstand premature wear and tear caused by high-speed operation.
Once the dimensions of the seal have been determined, it is then necessary to measure the diameter and width of the mating components for accuracy. This will ensure that the seal fits correctly and prevents leakage. The fit of the seal can also be tested to make sure that no gaps remain.
The selection and design of mechanical seals is a complex and important process that requires knowledge and understanding of a wide range of factors. It is essential that the correct seal is chosen for the application and that it is designed to withstand the operating environment and pressures. Furthermore, the correct materials must be selected for the seal components for compatibility and durability. By carefully considering each of these factors, it is possible to ensure the successful function of a mechanical seal.
