Selection and Sizing of Air Release Valves (Ohio Timed & Monitored)

In Selection and Sizing of Air Release Valves, you'll learn ...

• The four primary ways that air gets introduced into a liquid pipeline
• The problems and dangers attributed to the presence of air in pressurized pipelines
• The various types of air and vacuum release valves
• Air/vacuum valve sizing criteria

Overview

To meet the Ohio Board's intent that online courses be "paced" by the provider, a timer will be used to record your study time. You will be unable to access the quiz until the required study time of 50 minutes has been met.

Credit: 1 PDH

Length: 19 pages

Air valves are used for the release of air pockets in water lines. When air is allowed to accumulate in pressurized pipelines, efficiency is sacrificed and serious damage can occur. An air valve is designed to allow the automatic discharge of large amounts of air from the water main, while it is being filled, and also to allow air to enter the water main, when the water line is being emptied. It will also allow the air to escape the water main when it is in operation and under pressure.

If air valves are not installed, uncontrolled air releases may occur, causing pressure surges in the system potential damage due to cavitation.

This 1-hour course will describe the basic theory of air valves; explain their operation, and provide methods and tools to specify, locate, and size air valves for maximum flow efficiency and surge protection.

Learning Objectives

Upon completion of this course, participants will be able to:

• Explain how air enters a piping system.
• Identify problems caused by trapped air.
• Describe the types of air-release valves.
• Determine appropriate locations for air-release valves.
• Calculate the required sizes of air valves.
• Identify the available options and devices for air-release operation.

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 15 questions. PDH credits are not awarded until the course is completed and quiz is passed.