Learners view an animation of a sequence valve in operation and examine the valve’s internal structure.

Learners examine the operation of five pneumatic animated circuits that use directional control valves, pilot lines, check valves, needle valves, and cylinders.

In this animated and interactive object, learners identify the valves and chambers of the heart.

In this video learners view the valves and chambers of the heart.

In this animated object, learners view the "T" and "P" waves and the "QRS complex." A brief quiz completes the activity.

In this screencast, learners identify the parts of the cardiovascular system and examine blood flow.

Learners study an animation of a spring-and diaphragm actuator controlling the opening of a flow valve.

In this screencast, learners examine the internal structure of an unloading valve. This learning object includes a video clip demonstrating the use of an unloading valve in a metal stamping application.