Fuel piping should be regularly inspected for leaks. Which location poses a significant fire hazard?

The fuel oil service pump discharge strainer is a location that poses a significant fire hazard because it is where fuel is actively being pumped and can generate heat. When fuel is under pressure in the discharge line, any leaks or spills can lead to fuel pooling in this area, creating a higher risk of ignition due to the immediate presence of an active pump and the potential for sparks or hot surfaces.

In addition, this location is often vulnerable to debris accumulation, which can also contribute to fire risks if fuel leaks occur. Regular inspections in this area are crucial not just to detect leaks but also to ensure that the strainer does not block fuel flow, which can lead to overheating and failures that further increase fire hazards.

While other locations like fuel oil supply lines, fuel return piping, and storage tank connections also have their risks, they do not present the same level of immediate danger due to the combination of fuel pressure, active pumping, and potential sources of ignition that are unique to the service pump discharge strainer.