A single facility can have hundreds, if not thousands, of valves to control everything from turbine operation to ventilation, to systems that ensure the safety of personnel and equipment. The valves used can range in size from less than an inch to several feet in diameter. While some of these valves are designed to be operated manually, many of them require some form of automatic or remote operation. Operators and technicians must understand the different types of actuators used to operate these valves, and how these actuators work.
Regulator Contact Information:
"State the purpose of a valve actuator.
List the three basic types of actuators.
Describe the operating principles of a pneumatic actuator.
Describe the operating principles of an electric actuator.
Describe the operating principles of a hydraulic actuator."
You will not be required to pass the knowledge check questions to move on to the next lesson. These will not be counted as a grade, but each question gives you insight into what you should have learned and the sorts of things you'll need to remember moving forward.
The final exam must be passed successfully with 80% or higher in order to receive your certificate of completion.