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What is the most common mechanical seal?

Question: What is the most common mechanical seal?

In general, the most common mechanical seal used in industry depends on the specific application, operating conditions, and fluid being handled. However, the single mechanical seal is one of the most commonly used mechanical seals due to its simplicity, cost-effectiveness, and versatility. It is suitable for most types of equipment and can be used in a wide range of applications.

However, for applications involving hazardous, corrosive, or abrasive fluids, or where leakage cannot be tolerated, other types of mechanical seals such as double mechanical seals, tandem mechanical seals, or cartridge mechanical seals may be used. These seals provide greater sealing effectiveness and can offer improved reliability and safety.