When performing maintenance on a refrigeration system, which component is crucial for keeping it leak-free?

In a refrigeration system, maintaining a leak-free environment is essential for optimal performance and efficiency. Seals and gaskets play a crucial role in this process as they are designed to create tight seals around connections and joints within the system. Over time, these components can wear out or become damaged, leading to potential refrigerant leaks.

By ensuring that seals and gaskets are properly installed and in good condition, you minimize the risk of leaks that can compromise the system's efficiency and lead to increased operational costs. While other components like the expansion valve, evaporator, and compressor are vital for the overall function of the refrigeration system, it is the seals and gaskets that are specifically tasked with preventing leaks. Their integrity directly impacts the system's ability to maintain refrigerant levels, thus highlighting their importance during maintenance procedures.