Why Do Mechanical Seals Fail ?

Mechanical seals can fail for a variety of reasons, including: 

• Improper Installation: Mechanical seals are precision components that require careful installation to function correctly. If they are not installed correctly, they can become damaged and fail, leading to leaks and other problems. 
• Incorrect Material Selection: The material used to make the mechanical seal must be compatible with the fluid being pumped and the conditions of the application. If the wrong material is used, the mechanical seal can become damaged and fail. 
• Misalignment: Mechanical seals are designed to be perfectly aligned with the shaft of the pump. If they become misaligned, they can cause excessive wear, damage, and eventually failure. 
• Excessive Load: Mechanical seals can experience excessive load due to high-pressure or high-temperature applications. This can cause excessive wear and damage, leading to failure. 
• Contamination: Contaminants such as debris or particles can cause damage to mechanical seals, leading to failure. 
• Age and Wear: Over time, mechanical seals can become worn due to normal use. This can cause the mechanical seal to become damaged, leading to failure. 
• Insufficient Lubrication: Mechanical seals require adequate lubrication to function correctly. If there is insufficient lubrication, the mechanical seal can become damaged, leading to failure. 
• Chemical Attack: Some chemicals can cause damage to mechanical seals, leading to failure. This is especially true in chemical processing applications where the fluid being pumped is highly corrosive. 

To prevent mechanical seal failure, it is important to choose the right material for the application, install the mechanical seal correctly, maintain proper alignment, and ensure adequate lubrication and protection from contamination. Regular inspections and maintenance can also help to extend the life of the mechanical seal and prevent failure