What is the purpose of the seals in a pump system?

The seals in a pump system are primarily designed to prevent fluid from escaping through the shaft. This function is critical for maintaining the efficiency and safety of the pump. When a pump operates, a shaft is usually driven to create the necessary movement to transport the fluid. Without proper sealing, the fluid could leak out around the shaft, leading to loss of product, environmental contamination, and potential safety hazards.

Seals also help maintain the appropriate pressure within the pump system, supporting overall system performance and reliability. A failure of the seals could result in increased wear on components, reduced efficiency, and higher operational costs due to fluid loss and the need for maintenance or replacement. Therefore, the correct answer emphasizes the essential role of seals in maintaining system integrity and functionality by preventing leakage.