Blood flow through the valve began to improve almost immediately.

These pieces can tear blood cells as they pass through the valve.

I'm going to try to cut through the magnetic valve.

The bottom gate then opens to allow material to pass completely through the valve.

But at some point, it won't be able to keep up the extra effort of pumping blood through the narrowed valve.

I maneuver the prong down through the valve to free it.

If the volume is compressed enough some of the molecules will pass through the valve.

Ports are passages that allow fluid to pass through the valve.

Hydrogen was vented out through valves on the top of the ship.

These two parts form the casing that holds the fluid going through the valve.