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Food and Beverage Processing

Food and Beverage Processing

When wandering the grocery store aisles,...

Variable Frequency Drives in Electric Actuators

Variable Frequency Drives in Electric Actuators

Electric actuators are vital for operati...

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Industry Headlines

Halliburton and Baker Hughes Abandon Proposed Merger Agreement

-1 DAYS AGO  |  Chris Guy

Halliburton and Baker Hughes announced that the companies have terminated the merger agreement they entered into in November 2014, effective April 30, 2...

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Industry Headlines

Garlock Acquires Rubber Fab Technologies

-1 DAYS AGO

Garlock has acquired the business and assets of Rubber Fab Gasket & Molding Inc. through its parent company EnPro Industries.

Rubber Fab, headquartered in Sparta, NJ, is a recognized supplier of high performance sanitary gaskets, hoses and fittings for hygienic process industries such as pharmace...

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MRC Global Announces First Quarter 2016 Results

22 HOURS AGO

MRC Global Inc. today announced first quarter 2016 results. The company's sales were $783 million for the first quarter of 2016, which were 39% lower than the first quarter of 2015 and 19% lower than the fourth quarter of 2015. As compared to last year, reduced customer activity across all segments ...

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Halliburton and Baker Hughes Abandon Proposed Merger Agreement

-1 DAYS AGO

Halliburton and Baker Hughes announced that the companies have terminated the merger agreement they entered into in November 2014, effective April 30, 2016.

“This was an extremely complex, global transaction and, ultimately, a solution could not be found to satisfy the antitrust concerns of regul...

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Energy Sector Weighs on Construction Starts

5 DAYS AGO

At a seasonally adjusted annual rate of $660.5 billion, new construction starts in March receded 1% from February’s pace, according to Dodge Data & Analytics. Total construction starts had jumped 13% in February, led by a huge gain for the electric utility and gas plant category. The dolla...

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U.S. Economy Grew 0.5% in First Quarter

3 HOURS AGO

U.S. GDP increased at an annual rate of 0.5% in the first quarter of 2016, according to the advance estimate released by the Bureau of Economic Analysis. In the fourth quarter, real GDP increased 1.4%.

The increase in real GDP in the first quarter reflected positive contributions from personal consumpt...

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ISM: Manufacturing Activity Increased in April

22 HOURS AGO

Manufacturing expanded in April as the PMI registered 50.8%, a decrease of 1% from the March reading of 51.8%, indicating growth in manufacturing for the second consecutive month, following five consecutive months of contraction in manufacturing.

The Institute of Supply Management (ISM) reports that 15...

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2002 Articles

WINTER

Using Today's Actuator Technology to Accomplish Pipeline Safety
Howard Williams, Rotork Controls

Gas and oil pipelines are essential to America's success. By using today's valve actuator technology along with other proactive security and safety methods, major catastrophes can he avoided or at least mitigated.

Valve Trim Retrofits: Solving Chronic Control Problems
Robert E. Katz

Trim retrofit proves itself to be a viable, relatively inexpensive, and successful way to eliminate chronic noise, vibration, trim damage and operational instability problems in control valves throughout industry.

Can You Afford Not To Develop a Proactive Relationship with your Suppliers?
Clay D. Canterbury
If you feel your company cannot afford to expend resources for proactive communication with your supplier base, one question must he asked: can you afford not to?

The Extension Bonnet Cover-Up: Too Often a Mistake
Ron Funk
Do you typically insulate control valve extension bonnets in high-temperature applications? You may not want to, and here are the reasons why!

SPRING

How Today's Actuators Can Interface Effectively with Control Systems
Howard Williams

Today, applications that require automated valve operation can be easily and cost effectively networked and interfaced to the plant's distributed control system. There are many different options to accomplish an effective link, depending on the application's specific requirements.

Understanding Hydraulic Shock
Charles Stutsman

Hydraulic shock is too often overlooked when valve selections are made. The rapid closing time of quarter-turn valves, swing check valves and actuated valves is as critical a consideration as pressure and temperature limitations if not properly addressed.

Increase Process Accuracy with High Modulation Electric Actuators
Jose Huyke

Utilization of these types of high modulation actuators will thus complete the high performance loop requirements in today's processes; justifying their investment with increased process accuracy and performance.

Thermal Spray Technology
John Williams & Dr. George Kim

Thermal spray coatings are widely used in applications that require wear protection, corrosion protection, a thermal barrier, dimension control, and component restoration, to name a few examples.

Control Valve Stem Seal Options
Andrew D. Butcher, Spirax Sarco

In order for stem seals to be effective, it is essential that the correct type and material of seal be selected to suit the conditions of service.

SUMMER

Deepwater Sub-sea Ball Valves
David R. Medford

With the growing development of deep water oil and gas fields and the increasing need for larger bore, higher pressure valves, a move to consider ball valves as another option to traditional gate valve solutions has been growing in popularity.

Internet Security: Safeguarding Your IT Investment
Will Garvin
This article covers some of the security tools available for network and internet security, and offers items for consideration in developing an IT security plan.

Control Valve Positioner Technology
Andrew D. Butcher
The need for a control valve positioner is explained in simplistic terms and along with an introduction to the world of digital positioner technology.

Reducing the Cost of Addressing the PED
Lindsay Bredemeyer
There are exclusions and application limits within the PED which significantly reduce the cost and effort of addressing the PED by avoiding the more expensive aspects of PED compliance.

Getting Closure on Compliance: Putting Valve Related Safety Standards in Perspective
Joseph Wright
Existing safety standards give us access to an evolving body of information needed to build, maintain, and operate processing plants safely.

FALL

Advances in Valve & Actuator Technologies
With increasing foreign competition, U.S. and Canadian valve and actuator manufacturers face the continuing challenge of developing and producing innovative products to address the needs of the flow control industry.

Superior Actuator Diaphragm Material for Control Valves in Low Temperature Applications
Ted Grabau, Emerson Process Management

A newly developed actuator diaphragm material for use in control valve applications provides extended service temperature capability, particularly at sub-zero temperatures.

World Standards for Safety Valves
Stephen Gow, Spirax Sarco

Confusion can occur when comparing different standards because in some cases, the same term has a slightly different definition, or the same definition is referred to by different terminology.

Suitability of Trims of Cavitation: Part I
Bradford Haines

First of a two-part series on severe service trims which will provide methods to determine suitability of valve trim styles for various cavitating services.

Considering Mechanical Partial Stroke Test Devices for Process ESD and Safety-Related Valves
Mike Mitchell, DynaTorque·

The purpose of this discussion is to examine the benefits of mechanical Partial Stroke Test Devices as a preferred methodology for functional testing of the SIS when a full stroke of the valve is not practical.

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