What is the primary function of a pressure relief valve in a refrigeration system?

The primary function of a pressure relief valve in a refrigeration system is to prevent overpressure. This component is critical for safety, as it is designed to open when the pressure in the system exceeds a predetermined limit. Overpressure can occur due to various reasons, such as excessive refrigerant, a malfunctioning compressor, or a blocked line. If not released, this excess pressure can lead to system failures or, in the worst-case scenario, cause a hazardous situation such as an explosion.

By releasing the excess pressure, the valve helps to maintain the integrity of the system and protects other components from damage, ensuring safe and reliable operation of the refrigeration system. Thus, its role is essential in promoting the safety and longevity of the equipment.