The valve controlled the flow of propellants through the gas generator injector.

The steering wheel operates valves to control flow to the cylinder.

Since this valve controls the flow of air very little power is required.

Typically, this valve controls a high pressure or high flow feed.

A wheel and a valve controlled the movements of the door.

This valve controls the water going to all the pipes in the house.

For each installation, one valve generally controls incoming water.

Some special valves can control the direction of the flow of fluid and act as a control unit for a system.

The valve controls either the hot or cold water, not both.

This valve controls the rate at which fuel can enter the pressure carburetor.