Valves

Monitoring Pressure Relief Devices

Articles

Monitoring Pressure Relief Devices

The purpose of a process plant control system is to keep process variables at the desired operating point and within safety limits.

Automation General Valves

December 4, 2018

VMA’s New Chair Cites Deep Need for Technical Know-How

News

VMA’s New Chair Cites Deep Need for Technical Know-How

Ask David Hughes, the new chairman of the Valve Manufacturers Association of America (VMA), what he sees as the most significant pressure the valve industry of today faces and he’ll point to the need to find new ways to offer and create expertise.

Valves VMAnews

October 24, 2018

Creep Strength Enhanced Ferritic Materials in Thermal Power Applications

Articles

Creep Strength Enhanced Ferritic Materials in Thermal Power Applications

The designers of modern thermal power plants continue to work hard to improve plant efficiency by increasing the heat rate as a function of main-steam pressure and temperature.

General Valves

October 16, 2018

Lifecycle Management of Pressure Relief Valves

Articles

Lifecycle Management of Pressure Relief Valves

Accurately specified and appropriately maintained pressure relief valves (PRVs) are critical to protect plant personnel and equipment against unexpected overpressure events.

Automation General Leadership Valves

September 19, 2018

Evolution of Butterfly Valves on Aircraft Carriers

Articles

Evolution of Butterfly Valves on Aircraft Carriers

Butterfly valves are an integral part of keeping an aircraft carrier’s firemain system operating smoothly.

Automation General Thought Leadership Valves

August 29, 2018

From Cannon Balls to Pressure Seals: Graphite for Sealing

Articles

From Cannon Balls to Pressure Seals: Graphite for Sealing

From time to time, we re-publish well-received or particularly valuable articles that have previously run on VALVEMagazine.com so that those who might have missed them will be able to catch up on the best of the best.

General Valves

June 11, 2018

Cavitation in Globe Valves—and Proposed Solutions

Articles

Cavitation in Globe Valves—and Proposed Solutions

Straight pattern globe valves are widely used in the oil and gas industry to regulate and control the flow of fluids.

General Valves

May 1, 2018

Process Instrumentation in Oil and Gas

Articles

Process Instrumentation in Oil and Gas

Process instrumentation is an integral part of any process industry because it allows real time measurement and control of process variables such as levels, flow, pressure, temperature, pH and humidity.

General Thought Leadership Valves

December 7, 2017

Check Valves in LNG Cryogenic Service

Articles

Check Valves in LNG Cryogenic Service

Because natural gas is currently considered a good source of energy for both environmental and economic reasons, it’s growing in use.

General MRO Valves

December 6, 2017

Unique Operating Dynamics of Trunnion-Mounted Ball Valves

Articles

Unique Operating Dynamics of Trunnion-Mounted Ball Valves

For a very long time, the idea has existed that a trunnion-mounted ball valve can be opened under full differential pressure if the piping system can withstand the rapid increase in pressure and the forces induced by it.

Automation General Valves

November 21, 2017

Low Cracking Pressure in Chemical Processing Condensate Lines

Articles

Low Cracking Pressure in Chemical Processing Condensate Lines

Steam condensate is the liquid by-product formed when steam goes from the vapor state to the liquid state; this process occurs in a wide range of applications, across virtually all industries.

General Valves

August 22, 2017

Monitoring Valve Health via the Internet

Articles

Monitoring Valve Health via the Internet

Most valve end users are already using smart valve positioners on some control valves, but they may not have time to check the valve diagnostics software to notice if any valves are developing problems.

General Valves

July 19, 2017