Archive for the ‘Final Control Element’ Category

IIoT in Steps for Monitoring Valve Health

Posted in Controllers & Positioners, Industrial IOT, Wireless on Tuesday, January 16th, 2018. No comments yet
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Manufacturers and producers can improve safety, reliability and efficiency by applying additional sensors, analytics and experts. Difficulties in installation have held back these improvements, but the Industrial Internet of Things (IIoT) technologies have significantly reduced these barriers. One example of IIoT in action is featured in a Valve magazine article, Monitoring Valve Health via the […]

Tank Blanketing Pressure Regulation Calculations

Posted in Regulator on Friday, January 5th, 2018. No comments yet
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In an earlier post, Sizing Tank Blanketing Regulators, we described changes in the API Standard 2000 – Venting Atmosphere and Low-Pressure Storage Tanks with the release of the 7th edition. Emerson’s Steve Attri highlighted the changes from the prior versions of the standard and how these changes affected the sizing requirements of tank blanketing pressure […]

Low-Bleed or Standard Relays for Control Valves?

Posted in Controllers & Positioners, Final Control Element on Tuesday, January 2nd, 2018. No comments yet
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Happy New Year everyone! I hope your holidays helped to recharge your batteries and get you off to a great start for 2018. I saw this exchange in my email over the holidays about the effects of using low-bleed relays with Fisher DVC6200 digital valve controllers for control applications as compared to standard relays. This […]

Control Valve Noise-Induced Vibration Solution

Posted in Final Control Element on Monday, December 18th, 2017. No comments yet
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A presentation from this past October’s Emerson Exchange conference on control valve vibration problems was recently published by ControlGlobal.com. The article, Ethanol plant learns why pipe cracks, describes the problem-solving path to address this situation. Emerson’s Shawn Anderson and Adin Mann joined in an ethanol energy producer’s presentation to share the story of how the […]

Reliable Control Valve Performance in Ethylene Production

Posted in Chemical, Final Control Element on Tuesday, December 12th, 2017. No comments yet
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Olefins, also known as alkenes, are unsaturated hydrocarbons, use to make many petrochemical products such as plastics. Olefin production, including ethylene, propylene and butadiene products, requires tight control for higher throughput, more energy efficient, and more reliable operations. In an article from The Chemical Engineer, Increasing Ethylene Conversion and Plant Reliability, Emerson’s Blake Coleman describes […]