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Actuators Blog (no longer active)
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Get better quality data from your wells and increase well production with a smaller package footprint? Possible!
over 11 years ago
Regulators - Blog (no longer active)
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Wirelessly Monitoring Tank Thief Hatches to Avoid Regulatory Fines
over 5 years ago
Valves Blog (no longer active)
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Fail-Safe Electric Actuators for Quarter-Turn Valves
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Valves, Actuators & Regulators Blog
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Digital Valve Controller Diagnostic Alerts Maximize Maintenance Efficiency
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Testing and Evaluating Pressure Regulator and Relief Valve Applications
Jim Cahill
Let’s close the week with peek into the labs where pressure regulator and relief valve testing is done. In this 4:21 second YouTube video, Emerson Lab Overview , the team managing the lines of regulator technologies provide a look at the test labs and share examples of testing performed. This testing on pressure regulators and relief valves helps to assure successful operation when the regulators are placed into service…
20 Mar 2015
Pressure Regulator and Control Valve Best Fit Applications
Jim Cahill
The post Pressure Regulator and Control Valve Best Fit Applications appeared first on the Emerson Process Experts blog. Managing pressure is a fundamental control challenge for most process manufacturers and producers. A frequent question is whether a pressure regulator or control valve is best for a particular application. At last fall’s Emerson Exchange, I live-blogged a great presentation by Keith Erskine with Emerson…
5 Mar 2015
Basics of Flame Arrestor Technology
Jim Cahill
The post Basics of Flame Arrestor Technology appeared first on the Emerson Process Experts blog. In process operations with combustible gases, flame arrestors are devices that help mitigate the risk of combustion. Wikipedia defines these devices : A flame arrester (also spelled arrestor ), deflagration arrester , [1] or flame trap [2] is a device that stops fuel combustion by extinguishing the flame . [3] Michael…
18 Feb 2015
Automating Manual On-Off Valves
Jim Cahill
The post Automating Manual On-Off Valves appeared first on the Emerson Process Experts blog. Unless your plant or production facilities was recently built, chances are that your process has a mix of automatic and manual control. A common area for manual control are on-off valves used in many general purpose applications such as tank filling and emptying, filter backwash and blowback, and sequencing operations to name…
28 Jan 2015
Valve Actuators for Safety Shutdown and Small Applications
Jim Cahill
The post Valve Actuators for Safety Shutdown and Small Applications appeared first on the Emerson Process Experts blog. One of the world’s leading spots to learn about new developments in industrial valves, valve actuators and fittings is the Valve World Expo . This event was held last month in Düsseldorf, Germany. During this event, Emerson launched two new products: the Bettis EHO Electro Hydraulic Actuator and…
16 Jan 2015
Sizing Tank Blanketing Regulators
Jim Cahill
Steve Attri Global Product Manager In March of 2014, API Standard 2000 (Venting Atmospheric and Low-Pressure Storage Tanks), 7 th edition was released. In a whitepaper, Sizing Tank Blanketing Regulators Using the Latest API 2000 7th Edition Guidelines , Emerson’s Steve S. Attri describes how the latest changes affect the sizing of tank blanketing regulators. The whitepaper also includes how backpressure regulators…
8 Dec 2014
Control Valve or Pressure Regulator?
Jim Cahill
Pressure is typically one of the most fundamental control parameters for process manufacturers and producers. Many types of final control elements including control valves and pressure regulators are used to perform this function. How do you decide which to use? Jake Buford Regulator Product Specialist I received an advanced copy of a paper being developed by Emerson’s Jake Buford . The paper, Choosing the Proper Pressure…
29 Oct 2014
Solving a Pipe-Rattling Control Valve
Jim Cahill
As we close in on the Emerson Exchange conference October 6-10 in Orlando , I wanted to share a problem solving story. This story is typical of what you’ll find throughout the weeklong conference. Jeff Wilson Control Valve Reliability Specialist Jeff...
24 Sep 2014
Valve Actuators for Corrosive and Hazardous Environments
Jim Cahill
For those non-mechanical engineers who have heard the phrase “rack and pinion” but are unfamiliar with the term, Wikipedia defines it : “Rack and pinion animation”. Licensed under Public domain via Wikimedia Commons A rack and pinion is a type...
31 Jul 2014
Improving HRSG Availability by Better Steam Temperature Control
Jim Cahill
Author: Douglas Morris A while back, I wrote about using advanced control techniques to reduce steam temperature swings which can lead to boiler unavailability. Control improvements are one method to address this problem, but so is evaluating the mechanicals...
30 May 2014
Reducing Pressure across Valves in Stages
Jim Cahill
In the third video in cavitation reduction series, Cavitation Mitigation Part 3 (2:52), Emerson’s Melissa Niesen describes how pressure reductions can be done in stages to avoid cavitating conditions in the liquid flow through a pipe. Melissa explains...
23 May 2014
Preventing Cavitation in Liquid Applications
Jim Cahill
In the Fisher Valve & Instruments YouTube series on reducing cavitation in your process flows, the 3-minute second video, Cavitation Mitigation Part 2 shows a split line demonstration of cavitation. I highlighted Part 1 in yesterday’s post, Reducing Cavitation...
21 May 2014
Reducing Cavitation in Piping
Jim Cahill
Emerson’s team responsible for Fisher Valves & Instruments products has a great series of YouTube videos on piping cavitation and ways to mitigate the damage that it can cause. Melissa Niesen, a research engineer, uses the Marshalltown Innovation Center...
20 May 2014
Avoiding Mistakes with Wireless Valve Feedback
Jim Cahill
Many plants have manual valves because it is too cost prohibitive or difficult to automate from an installation and wiring perspective. In a Valve World April edition article, Wireless valves for control, Emerson’s Kurtis Jensen highlights the advancement...
13 May 2014
Anti-Surge Compressor Control in Action
Jim Cahill
Compressor surge control, or better stated, anti-surge control, is always a popular subject here on the blog. Posts written years ago still remain highly viewed. Preventing surge is critical for centrifugal and axial compressors. Wikipedia defines it...
9 May 2014
Improve Ethylene Conversion
Kyley Leger
Chemical industry sales engineer, Blake Coleman, is writing a three part series for valvemagazine.com . Part one : critical control valve applications in the furnace section of ethylene conversion are discussed. Feedstocks into the pyrolysis furnace can be ethane, propane, butane, gas oil, or naphtha , but no matter the source, the feed rate must be balanced with dilution steam to lower hydrocarbon partial pressure…
21 Mar 2014
Safety Valve Positioners and Common Cause Failure Questions
Jim Cahill
If you work with pumps in your facility, you may be familiar with the Empowering Pumps site, a wealth of information to help you with these important assets in your plant. Founder Charli K. Matthews has launched something similar for valves, Empowering...
27 Feb 2014
Howto video on on/off electric actuators
Kyley Leger
Be sure to check out the new video with Emerson oil and gas expert, Brad Healey. Topics include setup and calibration of on/off units for the Fisher easy-Drive electric actuators. www.youtube.com/watch Leave a comment and let us know if you found this type of video useful.
26 Feb 2014
Fisher Valve and Instrument Howto Videos
Jim Cahill
In an earlier post, Howto Video on Pneumatic Valve Positioner Mounting, I shared the first in a series of “how to…” videos that the Emerson Educational Services team was developing. Apart from this initiative, my subscription on the FisherControlValve...
26 Feb 2014
Howto Video on Pneumatic Valve Positioner Mounting
Jim Cahill
I knew when my son went to YouTube before coming to me when he needed to learn how to tie a tie–that howto videos were valuable, easily discoverable, and broadly used. I’ve share examples such as How To Install Micro Motion 9739 MVD Electronic Modules...
12 Feb 2014
Critical Safety Shutdown Valve Actuators for United Kingdom
Jim Cahill
Imagine 30% of a country’s energy supply relying on two safety shutdown valves to flow natural gas and liquid condensate safely from offshore oil & gas production platforms to an onshore processing facility. It’s critical that the valve actuators reliably...
7 Feb 2014
Providing Operators Process Control Valve Position Feedback
Jim Cahill
Control systems provide signals to control valves to regulate their position per the requirements of the control strategy. It is good engineering practice, especially for critical control valves to have valve travel feedback from independent devices such...
10 Jan 2014
Differences in Fieldbuses and Ethernet Communications
Jim Cahill
Automation Engineers is one of the dynamic LinkedIn groups for automation professionals. A recent question was posed: Which is most effective ethernet or profinet I wanted to share Emerson’s Jonas Berge‘s response [I've inserted hyperlinks where he has...
20 Nov 2013
Separate Versus Integral Final Element Accessories in Safety Applications
Jim Cahill
Final elements such as safety shutdown valves, emergency isolation valves, blowdown valves, etc., in safety instrumented functions (SIFs) are equipped with various accessories such as digital valve controllers, solenoid valves (SOV), and volume boosters...
21 Oct 2013
Field Device Local Display in Process Safety Applications
Jim Cahill
One of the great things about conferences such as last week’s Emerson Exchange Americas conference is reconnecting face-to-face with people where some time has passed. I had the chance to connect with Emerson’s Riyaz Ali, whose expertise I’ve highlighted...
9 Oct 2013
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