Blog - Post List
    • 18 Jul 2019

    Valves Blog: Globe Valve Basics

    If you’re new to the process industries and have responsibilities including a safe, reliable and efficient production process, then you likely need to understand how control valves work. And, one of the best sources for learning is the Control Valve Handbook . For instance, if you need to learn about globe valves, section 3.1.1 of the handbook includes information on single-port valve bodies, post- and port-guided...
    • 9 Jul 2019

    Valves Blog: Continuous Pressure Relief Valve and Rupture Disk Monitoring

    Wireless sensors , as a part of the Industrial Internet of Things (IIoT) set of technologies, are finding new applications due to their ease of installation and commissioning. Many of these applications fall outside of the traditional monitoring and control applications managed by the industrial control systems in the manufacturing or production facility. These applications can provide new ways to improve safety, reliability...
    • 3 Jul 2019

    Valves Blog: Pressure Drop across Control Valves

    Let’s end this short week for the United States of America’s 4 th of July Independence Day holiday with an educational video from Emerson’s Fisher Valves & Instruments YouTube channel . The video, Control Valve Sizing Basics: What is Pressure Drop? , describes what this is, how to calculate it, and its importance in the selection of the right control valve for your application. Pressure drop, or pressure loss...
    • 12 Jun 2019

    Valves Blog: Advancing RFID-Based Productivity in Process Manufacturing

    New technologies usually become more broadly adopted as multiple suppliers adopt the technology and provide interoperability. Standards efforts help to define common requirements into a specification for suppliers to follow in their technology development programs. Shannon Jelken Today, industries such as warehouses, airlines and others employ radio-frequency identification (RFID) technology for increased productivity...
    • 20 May 2019

    Valves Blog: Sizing and Selecting Control Valves for Desuperheaters

    According to Wikipedia, superheated steam is steam: …at a temperature higher than its vaporization (boiling) point at the absolute pressure where the temperature is measured. It has: …tremendous internal energy that can be used for kinetic reaction through mechanical expansion against turbine blades and reciprocating pistons, that produces rotary motion of a shaft. The value of superheated steam in these applications...
    • 10 Apr 2019

    Valves Blog: Avoid Operational Issues with Proper Control Valve Selection

    Because they directly touch the process flow, control valves play a significant role in the stability, robustness and variability in the process. One bad-acting control valve can create large problems for safe and reliable operations. James Beall At last week’s AIChE Spring Meeting , Emerson’s James Beall presented Specifying Control Valve Performance to Achieve Desired Process Performance. In his comprehensive presentation...
    • 10 Apr 2019

    Valve Controllers & Positioners Blog: Avoid Operational Issues with Proper Control Valve Selection

    Because they directly touch the process flow, control valves play a significant role in the stability, robustness and variability in the process. One bad-acting control valve can create large problems for safe and reliable operations. James Beall At last week’s AIChE Spring Meeting , Emerson’s James Beall presented Specifying Control Valve Performance to Achieve Desired Process Performance. In his comprehensive presentation...
    • 29 Jan 2019

    Valves Blog: Augmented Reality-Based Remote Valve Assistance

    The phrase digital transformation can conjure up an image of massive changes over a short timeframe. But the reality is that we’ve been undergoing a digital transformation in our personal lives for decades. Things like remote control devices, wireless communications, access to information, etc. have all grown in scope and ease of access. Little changes and improvements spread out over time have brought we are to where...
    • 29 Jan 2019

    Valves Blog: Augmented Reality-Based Remote Valve Assistance

    The phrase digital transformation can conjure up an image of massive changes over a short timeframe. But the reality is that we’ve been undergoing a digital transformation in our personal lives for decades. Things like remote control devices, wireless communications, access to information, etc. have all grown in scope and ease of access. Little changes and improvements spread out over time have brought we are to where...
    • 19 Dec 2018

    Valve Controllers & Positioners Blog: Simplifying Safety Valve Proof Testing

    A safety instrumented function (SIF) within a safety instrumented system (SIS) consists of a sensor, logic solver, and final element. As part of the IEC 61511 global safety standard, these elements within the SIF must be tested during the operational phase of the safety lifecycle. Of the 3 elements, the final control element, typically a safety valve, has mechanical movement which must be tested. In a Processing magazine...
    • 19 Dec 2018

    Valve Controllers & Positioners Blog: Simplifying Safety Valve Proof Testing

    A safety instrumented function (SIF) within a safety instrumented system (SIS) consists of a sensor, logic solver, and final element. As part of the IEC 61511 global safety standard, these elements within the SIF must be tested during the operational phase of the safety lifecycle. Of the 3 elements, the final control element, typically a safety valve, has mechanical movement which must be tested. In a Processing magazine...
    • 13 Dec 2018

    Valve Controllers & Positioners Blog: Partial Stroke Test for Final Elements—Diagnostic Coverage Factors

    Author: Riyaz Ali Partial stroke test is one of the viable means to check mechanical integrity of Final Element of Safety Instrumented Function (SIF) loop. Generally, end users struggle on question of credit of PST for improvement in SIL (Safety Integrity Level). IEC 61508 and IEC 61511 define diagnostic coverage factors (DCF), but do not provide a prescriptive way to estimate the number applied in real process...
    • 13 Dec 2018

    Valves Blog: Partial Stroke Test for Final Elements—Diagnostic Coverage Factors

    Author: Riyaz Ali Partial stroke test is one of the viable means to check mechanical integrity of Final Element of Safety Instrumented Function (SIF) loop. Generally, end users struggle on question of credit of PST for improvement in SIL (Safety Integrity Level). IEC 61508 and IEC 61511 define diagnostic coverage factors (DCF), but do not provide a prescriptive way to estimate the number applied in real process...
    • 13 Dec 2018

    Valves Blog: Partial Stroke Test for Final Elements—Diagnostic Coverage Factors

    Author: Riyaz Ali Partial stroke test is one of the viable means to check mechanical integrity of Final Element of Safety Instrumented Function (SIF) loop. Generally, end users struggle on question of credit of PST for improvement in SIL (Safety Integrity Level). IEC 61508 and IEC 61511 define diagnostic coverage factors (DCF), but do not provide a prescriptive way to estimate the number applied in real process...
    • 13 Dec 2018

    Valve Controllers & Positioners Blog: Partial Stroke Test for Final Elements—Diagnostic Coverage Factors

    Author: Riyaz Ali Partial stroke test is one of the viable means to check mechanical integrity of Final Element of Safety Instrumented Function (SIF) loop. Generally, end users struggle on question of credit of PST for improvement in SIL (Safety Integrity Level). IEC 61508 and IEC 61511 define diagnostic coverage factors (DCF), but do not provide a prescriptive way to estimate the number applied in real process...
    • 28 Nov 2018

    Valves Blog: What to Look for in Control Valve Technology to Positively Impact Your Bottom Line

    Author: Vincenzo Sipala How Plant Downtime Effects Your Bottom Line Due to improper control valve selection, the valve trim pictured above was damaged by solids from the fluid, which was originally specified as clean. Keeping an intricate process plant at maximum productivity for multiple decades is no easy feat. Operations downtime caused by unscheduled maintenance issues continues to be a major cause of concern...
    • 28 Nov 2018

    Valves Blog: What to Look for in Control Valve Technology to Positively Impact Your Bottom Line

    Author: Vincenzo Sipala How Plant Downtime Effects Your Bottom Line Due to improper control valve selection, the valve trim pictured above was damaged by solids from the fluid, which was originally specified as clean. Keeping an intricate process plant at maximum productivity for multiple decades is no easy feat. Operations downtime caused by unscheduled maintenance issues continues to be a major cause of concern...
    • 26 Nov 2018

    Valves Blog: Hydraulic Actuators for Regulating Large and Quick-Stroking Time Valves

    Author: Stefano Belletti Process plants, not only in the oil and gas sector, are becoming increasingly complex in a competitive environment. Therefore, the performance of regulating and modulating valves is also an area where we need to focus our attention to improve the process and optimize costs. Precision, reliability, speed of operation, and fail-safe capabilities are among the most critical aspects of the...
    • 26 Nov 2018

    Valves Blog: Hydraulic Actuators for Regulating Large and Quick-Stroking Time Valves

    Author: Stefano Belletti Process plants, not only in the oil and gas sector, are becoming increasingly complex in a competitive environment. Therefore, the performance of regulating and modulating valves is also an area where we need to focus our attention to improve the process and optimize costs. Precision, reliability, speed of operation, and fail-safe capabilities are among the most critical aspects of the...
    • 19 Nov 2018

    Valves Blog: Proper Valve Selection and Control Strategies in Food and Beverage Processes

    Temperature control is a critical factor for many food & beverage processes. In a Flow Control magazine article, Selecting Valves for Food and Beverage Applications , Emerson’s Blake Coleman highlights the importance of the right valves and proper tuning to get optimum performance. Blake opens with what poor control may mean: …the best-case result would be lost efficiency, with worst case a completely unusable...
    • 19 Nov 2018

    Valves Blog: Proper Valve Selection and Control Strategies in Food and Beverage Processes

    Temperature control is a critical factor for many food & beverage processes. In a Flow Control magazine article, Selecting Valves for Food and Beverage Applications , Emerson’s Blake Coleman highlights the importance of the right valves and proper tuning to get optimum performance. Blake opens with what poor control may mean: …the best-case result would be lost efficiency, with worst case a completely unusable...
    • 16 Nov 2018

    Valves Blog: Prevent Valve Delamination in Conventional Power Plants

    Author: Paolo Tomaini Conventional power plants are being disrupted by an increasing demand for renewable energy. The priority in providing energy to the grid associated with the intermittent intrinsic nature of the renewable energy output is creating a shift from base-load power down to cycling in traditional plants and causing failures. The demand for renewables is only expected to grow over the next few decades...
    • 16 Nov 2018

    Valves Blog: Prevent Valve Delamination in Conventional Power Plants

    Author: Paolo Tomaini Conventional power plants are being disrupted by an increasing demand for renewable energy. The priority in providing energy to the grid associated with the intermittent intrinsic nature of the renewable energy output is creating a shift from base-load power down to cycling in traditional plants and causing failures. The demand for renewables is only expected to grow over the next few decades...
    • 16 Oct 2018

    Valves Blog: Stabilizing Pressure Regulator Performance

    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...
    • 16 Oct 2018

    Regulators - Blog: Stabilizing Pressure Regulator Performance

    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...