Isolation Valves
Reliable valve solutions for the safe shut off and isolation of industrial processes.
Reliable valve solutions for the safe shut off and isolation of industrial processes.
An isolation valve stops the flow of gas, liquid, slurry or powder. These valves typically operate in the closed or fully open position to direct process media, protect in emergencies and facilitate safe maintenance. Isolation valves are also known as shut off valves, on-off valves or stop valves.
Andrea Grieco explains how Vanessa valves help customers solve challenges in LNG applications.
The innovative AEV valve design eliminates cavities and with it, the risk of trapped media.
Nick Farrand explains how Clarkson valves help customers improve slurry management.
Emerson's KTM Powder Dischage System Ball Valve has been successfully tested to 2 million cycles.
Over the past 20 years, more and more countries around the world are focused on combating fugitive emissions. There’s a way for manufacturers to do their part, says Jeff Roseneder, by taking a closer look at basic seal design in ball valves.
Andrea Grieco explains how Vanessa valves help customers solve challenges in LNG applications.
The innovative AEV valve design eliminates cavities and with it, the risk of trapped media.
Nick Farrand explains how Clarkson valves help customers improve slurry management.
Emerson's KTM Powder Dischage System Ball Valve has been successfully tested to 2 million cycles.
Over the past 20 years, more and more countries around the world are focused on combating fugitive emissions. There’s a way for manufacturers to do their part, says Jeff Roseneder, by taking a closer look at basic seal design in ball valves.
Adam Attig
Adam Attig & Ricardo Garcia presented Eliminating Unseen Threats: Innovation in Bellows Leak Detection for PRVs at the 2024 4C Health, Safety & Environmental Conference.
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Karin Pharr
High-performance butterfly valves play a key role in equipment operation, isolation, and maintenance throughout the chemical and petrochemical industries. Crucial design features dramatically impact the performance and reliability of these valves, as discussed in my article from the February 2024 issue of Hydrocarbon Engineering, titled “High-Performance Butterfly Valve Selection.” Butterfly...
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Jean-Paul Boyer
Jean-Paul Boyer, Massimiliano Franco, Nagendra Maddula, and Eugenio Sudati recently published an article in LNG Industry magazine, “The Key to Valve Selection for Challenging LNG Applications”. It describes key design parameters for choosing the best valves for LNG terminal operations.
read moreIsolation Valve FAQs
An isolation valve stops the flow of gas, liquid, slurry or powder. These valves typically operate in the closed or fully open position to direct process media, protect in emergencies and facilitate safe maintenance. Although there are differences in intended use, isolation valves are also commonly known as shut off valves, on-off valves or stop valves.
Isolation valves are available in variety of designs including ball valves, butterfly valves, gate valves, globe valves, knife gate valves and triple offset valves. Each design type has its own advantages depending on the process conditions, system design or goals of the plant owner.
Isolation valves are installed in piping systems to isolate flow to ensure safe maintenance of process equipment including control valves, pumps and tanks. Isolation valves can also be used for on-off process control, to connect external equipment, facilitate testing and to shut down processes in an emergency.
Valves are the leading source of fugitive emissions in a typical process facility. Leakage can occur around the valve stem, body seals and end connections resulting in the unintended release of process media. It is therefore critical to carefully select low emission valve technology that features quarter turn action, a proven stem seal system, minimal body joints and where possible, welded end connections.
