Tag Archives: Sizing and Selection

How Back Pressure Affects PRV Operation

When selecting a pressure relief valve (PRV) for any application, many factors need to be taken into consideration. One of the most important — and least well understood — is back pressure. This article explains what back pressure is and … Continue reading

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6 More Factors That Affect Valve Sizing and Selection

In a previous post, we identified six factors that determine the sizing and selection of pressure relief valves: Connection size and type Set pressure (psig) Temperature Back pressure Service Rated capacity In this post, we’ll explore six more factors you … Continue reading

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Our Top 5 Articles of 2015

Here are the five most popular articles on our site in 2015. Thanks for reading! 40 Reasons Your Actuator Isn’t Working Actuator troubleshooting is complex. Depending on the type of actuator, the system, and other factors, there are many reasons … Continue reading

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Safety Valves and Pressure Relief Valves Sizing

Safety valves and pressure relief valves are crucial for one main reason: safety. This means safety for the plant and equipment as well as safety for plant personnel and the surrounding environment. Safety valves and pressure relief valves protect vessels, piping … Continue reading

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Why Is My Valve Leaking? Types Of Valve Leakage and Symptoms

Valve leakage is a common occurrence in industrial settings. Even valves labeled as “zero leakage,” or “bubble tight,” are not necessarily completely leakage-free. This article explores the types and common causes of valve leakage, and then provides information about industry … Continue reading

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