As published in Pumps & Systems Magazine, July 2018
By: Bruce Ellis
Check valves, or one-way valves, are designed to stop back-flow and, ultimately, to protect pumps and compressors. They are available in several styles and sizes, from 1/8 inch to as large as may be required. Check valves are found in many industries and with various applications ranging from municipal water to mining and natural gas. The three most common types are swing check valves, double-door check valves and silent spring-assisted axial flow check valves.
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