What is the primary function of a relief valve in an oil system?

The primary function of a relief valve in an oil system is to vent excess pressure. In any pressurized system, including those involving oil burners, maintaining safe pressure levels is crucial for both operational efficiency and safety. When the pressure in the system exceeds a predetermined limit, the relief valve opens to allow excess pressure to escape. This prevents potential damage to equipment and helps avoid hazardous situations such as leaks or explosions.

Understanding the operation of a relief valve is essential for oil burner operators, as it ensures the safety and reliability of the oil delivery system. By releasing excess pressure, the valve effectively protects components and maintains the integrity of the entire system.

In contrast, reducing flow to the burner, increasing oil temperature, or regulating oil density are functions that are more accurately managed by other components in the system. These processes do not directly relate to the relief valve’s safety function, as it operates specifically to control pressure levels within the oil system.