Fuel Shut-Off Valves

While the “indicating valves are a correct application, there “should be” lockouts place on both the FOS and FOR lines. If the FOS valve is closed while the generator is running, the engine will starve to death. If the FOR valve is closed while the engine is running (a diesel returns more fuel than it burns) the engine will die in a much more dramatic manner.

Some form of protection would be advised since the “thing” at the left has no conscience.