At the Emerson Exchange Americas Virtual Series, Emerson’s Erica Brackman shared ways to improve test bench performance using TESCOM ER5000 series electropneumatic actuator.
Valves, Actuators & Regulators
At the Emerson Exchange Virtual Series, Emerson’s Joe McHugh and SIS-TECH Solutions’ Angela Summers presented on achieving increased safety and reliability through a redundant architecture.
Austin Craft demonstrated the TopWorx for Emergency Shutdown valves which incorporates the HART 7 communications protocol during the Emerson Exchange Americas Virtual Series.
A series of five overpressure protection for natural gas distribution systems webcasts are now available on demand to explore the use of these solutions for safe, reliable and efficient pipeline operations.
Engineers who design safety systems are always mindful of a few basic truths: Anything can fail, so there should always be a backup. And sometimes, backups need backups. Looking at how this concept applies to pneumatically operated emergency shutdown (ESD) valves, and other similar on/off valves, is the main topic of Emerson’s Jeff Welch’s article in the November 2020 issue of Chemical Engineering.
To summarize, mechanical equipment such as shutdown valves, control valves, actuators, and accessories such as positioners are designed keeping in mind a plant’s life of around 25 years. Though you may not find any written or stated document from any supplier or manufacturers since mechanical deterioration depends on many parameters like internal process-related conditions or external environmental conditions, operating media (air, hydraulic fluid, etc.), proper care exercised during application selection & sizing, and more.
New technologies that are truly different often depend on a “killer app” to convince users to take the leap. For the Internet early on, it was email. Suddenly being able to communicate near instantaneously in writing provided visible value people could latch on to, and the rest is history. For industrial users, digital transformation has been similar. How and why it has been adopted in many locations is the topic of Emerson’s Marcelo Carugo’s article in the October issue of Control.
Ruediger Niebel describes the use of two-stage pressure regulators in high-pressure hydraulic applications to avoid damaging cavitation conditions.
In this storage terminal safety podcast, we are joined by Emerson’s Kurtis Jensen to discuss specific technologies that provide the highest level of reliability and safety. These technologies enable technicians, users and operators to detect issues and monitor for correct valve positions with and reduce the number of times they need to send staff into hazardous locations.
Valve actuators drive the movement of valves either in on/off, modulating or control service. These actuators can be powered manually, pneumatically, hydraulically or electrically. For electric actuators, there is a great, educational YouTube series, Introduction to Valve Actuation and Electric Actuators.
A 4-minute YouTube video, Sempell Turbine Bypass Valves explains how these steam conditioning valves control steam with greater efficiency and accuracy. These valves include unique steam atomizing steam desuperheating nozzles, tailor made trims, and pressure balancing features to support a wide range of applications.
In a Flow Control article, Understanding and solving control valve cavitation problems, Emerson’s Thirumalai Karthik (TK) Arasu opens highlighting the potential severity of cavitation.
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