Highly secure connections to plant automation systems and intelligent field instruments are enabling Emerson to provide remote monitoring services, helping processing companies and manufacturers to achieve significant operational benefits without having to develop in-house data analysis expertise.
Avoiding Actuator Damage from Failed Components
Riyaz Ali discussed with a major international oil company ways to eliminate supply line relief valves or needs for higher pressure-rated actuators should the air filter regulator (AFR) fail.
Valve Diagnostics Drive Improved Performance
In a Plant Engineering article, Advanced valve diagnostics drive savings, Jordan Mandernach and Emerson’s Brent Baker teamed up to share these diagnostics in digital valve positioners can help drive safety, reliability and efficiency improvements in the process.
Digital Valve Controller Travel Control with Pressure Fallback
The DVC6200 HW2 digital valve controller provides a unique feature to detect position feedback issues and automatically revert from travel control to pressure control (I/P transducer mode) to keep the valve operational. This can help avoid costly unplanned spurious trips that can affect plant operation.
More on Digital Valve Controller Travel to Pressure Fallback Mode
In a post, Valve Travel Control-Pressure Fallback, Emerson’s Riyaz Ali shared the process of how a control valve with a digital valve controller could fall back to standard pressure control upon an issue with the travel sensing mechanism.
Valve Travel Control-Pressure Fallback
A Digital Valve Controller, the DVC6200 (HART or Foundation Fieldbus) can detect position feedback problems and automatically revert to I/P [current to pressure] transducer mode to keep the valve operational. This avoids costly unplanned spurious trips, which are critical for plant operational performance.
Extending Final Element Proof Testing Intervals
I received a question from a very old post here on the blog, Credit for Partial Stroke Tests in Verification Process. The person was trying to get a better understanding about this chart showing how partial stroke tests (PSTs) can extend the intervals between full stroke tests for final elements in a safety instrumented function (SIF).
IIoT for Reliability and Safety-Limited Only by the Imagination
Many of these IIoT applications, whether powered by the Internet or internal intranets, have become more relevant as employees increasingly work from remote locations, requiring enhanced collaboration among widely dispersed personnel. An example is the remote monitoring of valves, along with collaborating for maintenance and repair, to improve reliability.
Helping Hands for Your Valves
Imagine you have been tweaking and tuning one of your control loops and have the perfect PID [proportional-integral-derivative] settings. Everything is working great for several months until it isn't. Chances are that it's the part of that loop doing all the manual...
Improving Control Valve Reliability through Valve Condition Monitoring
An Asian refiner sought to improve reliable operations around their control valves a decade ago. I caught up with Emerson's Sumitaka Ichiki who shared the story of their journey to more reliable operations. Using the Fisher FlowScanner valve diagnostic software, they...
Valve Condition Monitoring Connected Services
One path in digital transformation programs is to drive reliability improvements of plant assets by moving from reactive maintenance to condition based maintenance of the equipment. I caught up with Emerson's Saurabh Pathak who shared a case study with me of a large,...
Low-Bleed or Standard Relays for Control Valves?
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...
Keep Up to Date With the Latest News and Updates
We invite you to follow us on Facebook, LinkedIn, Twitter and YouTube to stay up to date on the latest news, events and innovations that will help you face and solve your toughest challenges.
Do you want to reuse or translate content?
Just post a link to the entry and send us a quick note so we can share your work. Thank you very much.
Our Global Community
Emerson Exchange 365
The opinions expressed here are the personal opinions of the authors. Content published here is not read or approved by Emerson before it is posted and does not necessarily represent the views and opinions of Emerson.