What type of seal prevents vapor from leaking out of a compressor?

A mechanical seal is specifically designed to prevent the leakage of fluids, including gases and vapors, from a compressor. It accomplishes this by creating a tight seal between the rotating shaft and the stationary housing, using a combination of sealing surfaces and a spring mechanism. This design ensures that even under high pressure and temperature conditions commonly found in compressors, the seal maintains its integrity and prevents vapor escape effectively.

Mechanical seals are essential components in many industrial applications as they help maintain efficiency by minimizing product loss and protecting the environment from harmful emissions. The design and materials used in mechanical seals are typically optimized for durability and resistance to wear, further enhancing their effectiveness in high-stress situations typical of compressor operations.

In contrast, while O-ring seals, gasket seals, and rubber seals can provide certain levels of sealing, they may not withstand the same high pressures or temperature extremes, or they may not be designed for the constant motion seen in compressors, making them less suitable for this specific function.