The engineer inspected the leaf valves to ensure they sealed properly against backflow.

The surgeon carefully examined the mitral valves before deciding on the best repair technique.

The mechanic inspected the poppet valves to ensure the engine wouldn't lose compression.

The technician inspected the pressure valves before restarting the pump.

During the autopsy, the pathologist carefully examined the pyloric valves for signs of ulceration or obstruction.

The technician inspected the demand valves before the deep-sea dive to ensure each regulator was functioning correctly.

Before the test drive, the engineer adjusted the exhaust valves to improve engine performance.

During the dissection, the professor pointed out the ileocaecal valves and explained their role in preventing backflow.

The maintenance team inspected the plug valves for signs of corrosion before the plant restart.

The mechanic inspected the side valves to ensure the vintage engine ran smoothly.