Whenever an outlet of an oil supply tank is located more than 4 feet from the burner, which valves are required?

The requirement for an oil supply tank outlet that is located more than 4 feet from the burner includes the installation of an oil supply valve (OSV) or a pressure relief valve (PRV). The OSV is crucial for safely shutting off the oil flow during maintenance or in emergency situations, preventing any potential leaks or spills. Meanwhile, the PRV protects the system against excessive pressure that may occur, ensuring operational safety and compliance with regulations.

Both valves serve important functions in maintaining the integrity of the oil delivery system, especially when the distance between the tank and burner increases. This distance can introduce additional risks, such as the potential for oil to drain back into the tank or developing dangerous pressure levels. Therefore, installing an OSV or PRV becomes essential for both safety and functionality whenever the outlet is beyond the specified distance from the burner.