Blog - Post List

  • Valves Blog (no longer active): Stabilizing Pressure Regulator Performance

    Jim Cahill
    In many areas of the industrialized world, natural gas transmission and distribution companies provide gas to commercial and industrial users, as well as many of us in our residences. For commercial users, such as apartment complexes, and industrial users, stable pressure is critical for operations. A 6-page whitepaper, Solving Instability Issues in Commercial and Industrial Natural Gas System Applications, explores…

  • Valves Blog (no longer active): Stabilizing Pressure Regulator Performance

    Jim Cahill
    In many areas of the industrialized world, natural gas transmission and distribution companies provide gas to commercial and industrial users, as well as many of us in our residences. For commercial users, such as apartment complexes, and industrial users, stable pressure is critical for operations. A 6-page whitepaper, Solving Instability Issues in Commercial and Industrial Natural Gas System Applications, explores…

  • Regulators - Blog (no longer active): Stabilizing Pressure Regulator Performance

    Jim Cahill
    In many areas of the industrialized world, natural gas transmission and distribution companies provide gas to commercial and industrial users, as well as many of us in our residences. For commercial users, such as apartment complexes, and industrial users, stable pressure is critical for operations. A 6-page whitepaper, Solving Instability Issues in Commercial and Industrial Natural Gas System Applications, explores…

  • Regulators - Blog (no longer active): Stabilizing Pressure Regulator Performance

    Jim Cahill
    In many areas of the industrialized world, natural gas transmission and distribution companies provide gas to commercial and industrial users, as well as many of us in our residences. For commercial users, such as apartment complexes, and industrial users, stable pressure is critical for operations. A 6-page whitepaper, Solving Instability Issues in Commercial and Industrial Natural Gas System Applications, explores…

  • Valves Blog (no longer active): Preventing Boiler Overpressure Conditions

    Jim Cahill
    At the 2018 Emerson Exchange conference, Emerson’s David Tuttle presented Preventing Overpressure Disasters in Supercritical Steam Generation. David comes to Emerson from the Crosby brand of valves that joined Emerson as part of the Pentair Valves & Controls acquisition. Boiler safety valves are the last line of defense against a catastrophic overpressure event. A safety valve opens at a preset pressure and discharges…

  • Valves Blog (no longer active): Preventing Boiler Overpressure Conditions

    Jim Cahill
    At the 2018 Emerson Exchange conference, Emerson’s David Tuttle presented Preventing Overpressure Disasters in Supercritical Steam Generation. David comes to Emerson from the Crosby brand of valves that joined Emerson as part of the Pentair Valves & Controls acquisition. Boiler safety valves are the last line of defense against a catastrophic overpressure event. A safety valve opens at a preset pressure and discharges…

  • Valves Blog (no longer active): Optimizing Pressure Relief Valve Lifecycle Management

    Jim Cahill
    Pressure relief valves (PRVs) are critical safety and equipment protection devices to prevent overpressure conditions. They need ongoing maintenance to assure that they operate as designed for their intended applications. In a Valve magazine article, Lifecycle Management of Pressure Relief Valves , Emerson’s Kevin Simmons and Marcelo Dultra describe considerations for effective and efficient PRV sizing, selection,…

  • Valves Blog (no longer active): Optimizing Pressure Relief Valve Lifecycle Management

    Jim Cahill
    Kevin Simmons Marcelo Dultra Pressure relief valves (PRVs) are critical safety and equipment protection devices to prevent overpressure conditions. They need ongoing maintenance to assure that they operate as designed for their intended applications. In a Valve magazine article, Lifecycle Management of Pressure Relief Valves , Emerson’s Kevin Simmons and Marcelo Dultra describe considerations for effective and efficient…

  • Regulators - Blog (no longer active): Optimizing Pressure Relief Valve Lifecycle Management

    Jim Cahill
    Pressure relief valves (PRVs) are critical safety and equipment protection devices to prevent overpressure conditions. They need ongoing maintenance to assure that they operate as designed for their intended applications. In a Valve magazine article, Lifecycle Management of Pressure Relief Valves , Emerson’s Kevin Simmons and Marcelo Dultra describe considerations for effective and efficient PRV sizing, selection,…

  • Regulators - Blog (no longer active): Optimizing Pressure Relief Valve Lifecycle Management

    Jim Cahill
    Pressure relief valves (PRVs) are critical safety and equipment protection devices to prevent overpressure conditions. They need ongoing maintenance to assure that they operate as designed for their intended applications. In a Valve magazine article, Lifecycle Management of Pressure Relief Valves , Emerson’s Kevin Simmons and Marcelo Dultra describe considerations for effective and efficient PRV sizing, selection,…

  • Valves Blog (no longer active): Selecting Valves for Food & Beverage Applications: Flow Control - September 2018

    mark.nymeyer
    Control of fluid flows and temperatures in food & beverage plants presents a number of challenges, most of which can be addressed with correct selection and application of control valves. Blake Coleman, the Global Chemical Industry Manger for Emerson’s Fisher product line, says temperature control is a very important variable in the food and beverage industry. His article, Selecting Valves for Food & Beverage…

  • Valves Blog (no longer active): Selecting Valves for Food & Beverage Applications: Flow Control | September 2018

    mark.nymeyer
    Control of fluid flows and temperatures in food & beverage plants presents a number of challenges, most of which can be addressed with correct selection and application of control valves. Blake Coleman, Key Account Manager for Emer...

  • Valves Blog (no longer active): Weathering the Storm: Equipping Wastewater Treatment Plants with Flood-Proof Actuators

    Jim Cahill
    Author: Steve Poling As we approach the 6 th anniversary of Hurricane Sandy and just passing the 1 st anniversary of Hurricane Harvey, the anxieties of facing another superstorm weighs on the minds of every coastal wastewater treatment operator. And with Hurricane Florence approaching the U.S. Carolinas , this string of major storms continues. Are we prepared? By design, most wastewater facilities are in low-lying…

  • Valves Blog (no longer active): What are Valve I/P Transducers?

    Jim Cahill
    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 are I/P Transducers? This video, developed by the Valves, Actuators & Regulators educational services team, opens by defining the “I” and the “P”. The…

  • Valves Blog (no longer active): Power Engineering Aug 2018, Cold Start: Improving Turbine Bypass Valve Reliability—By Mary Barker

    mark.nymeyer
    As often as four times a year during winter months, a power plant in Wisconsin would miss a scheduled start of its combined cycle power plant due to malfunctions of the turbine bypass valves. When there is an issue with the bypass system, the plant can’t start up, and it can’t shut down properly. Mary Barker, Senior Sales Engineer at Emerson and the Global Midstream Oil & Gas/LNG Industry Manager for Emerson, says…

  • Valves Blog (no longer active): Article info: LNG Industry, Aug 2018, Optimizing Performance

    mark.nymeyer
    The efficiency and availability of a plant’s compressors have a direct impact on the profitability of a liquified natural gas (LNG) facility. Downtime can affect the plant’s mixed refrigerant loops and lead to reduced LNG production, along with substantial contractual penalties. One cause of unexpected downtime is often poorly performing anti-surge valves. Joe DeMonte, Global Midstream Oil & Gas/LNG Industry…

  • Valves Blog (no longer active): Article: Control Engineering Europe, Jun 2018, Butterfly Valves Take Control

    mark.nymeyer
    Subject: Butterfly valves are lighter, smaller and weigh less than other kinds of control valves—making them the best choice for regulating flow in many applications. This article looks at the advantages and limitations of high performance butterfly valves, and then describes developments making them more suitable for flow control. Standard butterfly valves have traditionally been used for automated on/off applications…

  • Valves Blog (no longer active): Components in a Butterfly Valve

    Jim Cahill
    The team managing education services for the Fisher brand of valves and instrumentation has a lot of really good videos on valve basics. You’ll find these on Emerson’s Fisher Valves & Instruments YouTube channel. For example, a recently posted video, What are the Components of a Butterfly Valve? , provides an under 2-minute look at what makes up a butterfly valve and differences in types of valve. It opens describing…

  • Valves Blog (no longer active): How to Setup Keystone Actuator Mechanical Limits

    Jim Cahill
    As part of Emerson’s acquisition of the Pentair Valves and Controls business , the Keystone brand of valves and actuators joined the final control area of Emerson Automation Solutions. Over on the Bettis YouTube channel, is a great series of videos in setting up Keystone EPI2 electric actuators . I’ll recap a few points made in the first video, Keystone EPI2 Setup & Commissioning Video 1 Setting Mechanical Limits …

  • Valves Blog (no longer active): Improving Pressure Relief Valve Fugitive Emissions

    Jim Cahill
    In an earlier post, Creating Pressure Relief Valve Fugitive Emissions Testing , we described the advancement of this effect to create standards in this area. I joined Emerson’s Dr. Amr Gado and Calvin Deng as they presented this work in an Offshore Technology Conference (OTC) technical track, Striving Toward Safety Excellence in Offshore and Subsea Environments . Manufacturers and producers are seeking ways to reduce…

  • Valves Blog (no longer active): Filling Gaps in Global Safety Standards

    Jim Cahill
    A safety instrumented function (SIF)’s purpose is to reduce the risk of a specific hazard. For example, an upset condition in an oil and gas production separator may cause a series of SIFs within a safety instrumented system (SIS) to shut in the wells feeding the separator. A SIF contains a sensor, logic solver and final control element—often an emergency shutdown valve. As a mechanical component of this safety loop…

  • Valves Blog (no longer active): Valves for Frequent Cycling, High Pressures and Temperatures

    Jim Cahill
    David Leavitt described an application of high-cycling valves in a dehydration process at the Offshore Technology Conference (OTC) in Houston, Texas. I recapped his presentation last week in a post, Triple Offset Valves and Molecular Sieve Adsorption Applications . He compared rising stem ball valves and triple offset valves (TOVs) used in these applications. David describe a concentric butterfly valve design, a dual…

  • Valves Blog (no longer active): Triple Offset Valves and Molecular Sieve Adsorption Applications

    Jim Cahill
    Adsorption , different from absorption, is the process of the: … adhesion of atoms , ions or molecules from a gas, liquid or dissolved solid to a surface . [1] In process manufacturing operations, adsorption is sometimes used in dehydration or purification processes. In the oil & gas industry, this method is used to dehydrate and remove contaminants from natural gas. At next week’s 2018 Offshore Technology…

  • Valves Blog (no longer active): Simplifying Oil and Gas Production Site Installations and Operations

    Jim Cahill
    Consider the flow path of oil & gas production from the well head. The first stop is typically the production separator where the oil, gas, condensation, water, brine and other fluids and sediment get separated. Traditionally, for multi-well sites, there is a test separator so that each well’s production composition can be assessed. In this arrangement the wells are connect to both a test and production manifold, with…

  • Valves Blog (no longer active): Wellsite Valve Manifolds Simplified —By Joseph Zawacki

    mark.nymeyer
    : Connecting multiple production wells or flowlines to a test separator normally requires multiple valves, each of which has to be opened by hand to connect each well in turn. In addition to valves and shutoff devices, such a system requires considerable piping. A multiport flow selector (MPFS)—with automatically actuated control—is safer, less expensive, lighter weight and more compact than conventional systems. The…

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