As we continue to see a generational shift in the manufacturing industries, I like to highlight educational videos developed across the Emerson business groups. Our group managing Fisher Valves & Instruments products has recently posted a 2:51 YouTube video, What...
control valve
Solving Control Valve Vibration Challenges
The production areas of many process manufacturing facilities can sometimes seem deafening. Some of this noise may be attributed to excessive vibration surround equipment such as control valves, piping and instrumentation. Emerson's Adin Mann and Shawn Anderson have...
Control Valves and IIoT
At the 2018 ARC Industry Forum, ARC Advisory Group's Ralph Rio led a session, How OEMs improve Customer Satisfaction and Revenue with IIoT. The description for the session was: Using IIoT to monitor the equipment allows the OEM to identify an issue at their customer's...
Saving Project Timelines and Costs by Avoiding Control Valve Over-specification
Control valves are a critical part of process manufacturing processes and require great care in selection and specification. But what if the specifications are too stringent impacting both cost and lead times? The costs and delays can have an impact on the overall...
Control Valve Noise-Induced Vibration Solution
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....
Reliable Control Valve Performance in Ethylene Production
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...
Positioner Pneumatic Pressure Bleed in Throttling Control Valves
With the emphasis on improving energy efficiency and reducing greenhouse gas emissions, process manufacturers have turned to pneumatic low-bleed and zero-bleed valve positioners. Emerson's Riyaz Ali copied me on an email about a recent article that mentioned a...
Educational Video on Control Valve Cavitation
Wikipedia defines cavitation as: …the formation of vapour cavities in a liquid – i.e. small liquid-free zones ("bubbles" or "voids") – that are the consequence of forces acting upon the liquid. It usually occurs when a liquid is subjected to rapid changes of pressure...
Mitigating Cavitation and Outgassing Control Valve Damage
At the Emerson Exchange conference in Austin, Emerson's Jonathan Vance presented Outgassing and Cavitation: Not So Good Vibrations. Here's the abstract: Outgassing and cavitation are two of the most common issues associated with control valves. Both phenomena often...
Sizing Control Valves for Outgassing Applications
Think about what occurs when you open a bottle of champagne. Immediately the pressure inside the bottle drops to atmospheric pressure. This is below the pressure that allows the dissolved carbon dioxide to remain in solution, thus the CO2 gas is released. This sudden...
Value from Monitoring Control Valves
As staff in process manufacturing and production facilities shrink due to economic or demographic conditions, on-site engineers, operations and maintenance personnel must increase their breadth of skills at the expense of skill depth. In a recent post, Monitoring...
Monitoring Control Valves with Remote Expertise
An ARC Advisory group study highlighted that "The global process industry loses $20 billion, or five percent of annual production, due to unscheduled downtime and poor quality. ARC estimates that almost 80 percent of these losses are preventable…" Key components in...
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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.