Actuators Blog (no longer active)
2
posts
Get better quality data from your wells and increase well production with a smaller package footprint? Possible!
over 12 years ago
Regulators - Blog (no longer active)
52
posts
Wirelessly Monitoring Tank Thief Hatches to Avoid Regulatory Fines
over 6 years ago
Valves Blog (no longer active)
186
posts
Fail-Safe Electric Actuators for Quarter-Turn Valves
over 6 years ago
Valves, Actuators & Regulators Blog
457
posts
Valve Strategies to De-risk Modular LNG and Floating LNG Execution
3 days ago
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Regulators - Blog (no longer active):
Wirelessly Monitoring Tank Thief Hatches to Avoid Regulatory Fines
Jim Cahill
I shared a great case study from the oil patch yesterday with time savings with wireless pressure monitoring at the well head. Today, let’s continue with another great case study from the oil patch with a Control magazine article, Use wireless to monitor thief hatches . The article’s author opens describing what a thief hatch is. These devices are: …installed on the top of low-pressure and atmospheric tanks in the…
5 Sep 2019
Valves Blog (no longer active):
Globe Valve Basics
Jim Cahill
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 valve…
18 Jul 2019
Valves Blog (no longer active):
Continuous Pressure Relief Valve and Rupture Disk Monitoring
Jim Cahill
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…
9 Jul 2019
Valves Blog (no longer active):
Pressure Drop across Control Valves
Jim Cahill
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…
3 Jul 2019
Valves Blog (no longer active):
Advancing RFID-Based Productivity in Process Manufacturing
Jim Cahill
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…
12 Jun 2019
Valves Blog (no longer active):
Sizing and Selecting Control Valves for Desuperheaters
Jim Cahill
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…
20 May 2019
Valves Blog (no longer active):
Avoid Operational Issues with Proper Control Valve Selection
Jim Cahill
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
Valves, Actuators & Regulators Blog:
Avoid Operational Issues with Proper Control Valve Selection
Jim Cahill
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
Valves, Actuators & Regulators Blog:
Avoid Operational Issues with Proper Control Valve Selection
Jim Cahill
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
Valves Blog (no longer active):
Augmented Reality-Based Remote Valve Assistance
Jim Cahill
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 (no longer active):
Augmented Reality-Based Remote Valve Assistance
Jim Cahill
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, Actuators & Regulators Blog:
Simplifying Safety Valve Proof Testing
Jim Cahill
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
Valves, Actuators & Regulators Blog:
Simplifying Safety Valve Proof Testing
Jim Cahill
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
Valves, Actuators & Regulators Blog:
Partial Stroke Test for Final Elements—Diagnostic Coverage Factors
Jim Cahill
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, Actuators & Regulators Blog:
Partial Stroke Test for Final Elements—Diagnostic Coverage Factors
Jim Cahill
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 (no longer active):
Partial Stroke Test for Final Elements—Diagnostic Coverage Factors
Jim Cahill
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 (no longer active):
Partial Stroke Test for Final Elements—Diagnostic Coverage Factors
Jim Cahill
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 (no longer active):
What to Look for in Control Valve Technology to Positively Impact Your Bottom Line
Jim Cahill
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 (no longer active):
What to Look for in Control Valve Technology to Positively Impact Your Bottom Line
Jim Cahill
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 (no longer active):
Hydraulic Actuators for Regulating Large and Quick-Stroking Time Valves
Jim Cahill
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 (no longer active):
Hydraulic Actuators for Regulating Large and Quick-Stroking Time Valves
Jim Cahill
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 (no longer active):
Proper Valve Selection and Control Strategies in Food and Beverage Processes
Jim Cahill
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 (no longer active):
Proper Valve Selection and Control Strategies in Food and Beverage Processes
Jim Cahill
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 (no longer active):
Prevent Valve Delamination in Conventional Power Plants
Jim Cahill
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 (no longer active):
Prevent Valve Delamination in Conventional Power Plants
Jim Cahill
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
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