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Driving Valve Design in the Power Industry

nuclear plantsContrary to what might be expected, valve design in the power industry is not necessarily driven by codes and standards. So what is it, then, that sends engineers to the drawing board?

In a recent presentation at VMA’s 2013 Technical Seminar on valve and actuator trends, Paul Major of Velan Valve Corporation answered that question while illustrating the importance of codes and standards for the smooth, safe operation of power plants. Following is a summary of the key points Major made during his presentation.

API's New Casting Quality Standards

smelterpouringwebThe Valve Manufacturers Association held its annual Technical Seminar & Exhibits at the Hilton NASA Clear Lake in Houston, March 8-9. More than a dozen speakers presented on a variety of topics that centered on “Prevailing Challenges and Solutions for the Oil & Gas/Petrochemical Industries.”

Rick Faircloth is senior principal engineer, Engineered & Process Valves at Cameron Valves & Measurement in Houston. His presentation at the Technical Seminar provided a comprehensive overview of the newly proposed API casting quality standard, as well as a comparison with that of the Manufacturer’s Standardization Society (MSS).

The Proposed MSS Standard for ‘Standard-Class’ Castings

The issue of “commercial” casting quality has been argued at length at meetings, seminars and after-hours watering holes. But no one could really state what quality requirements needed to be met in order to call a casting a quality, commercial-grade valve casting.

The first thing that needs to be addressed is the word “commercial.” Commercial is not a technical casting term, so out it goes. In its place we use the term “standard class,” to differentiate them from their high-end “special class” brothers.

Are FE Standards Hot Air?

pipesvalveswebThe Valve Manufacturers Association held its annual Technical Seminar & Exhibits at the Hilton NASA Clear Lake in Houston, March 8-9. More than a dozen speakers presented on a variety of topics that centered on “Prevailing Challenges and Solutions for the Oil & Gas/Petrochemical Industries.” Following is the next article in this series.

David Bayreuther, vice president of engineering, Metso Automation USA, is a member of the U.S. team of experts working on revision of ISO-15484 and is also participating on a task force developing new API fugitive emissions standards. He presented a comprehensive analysis of the current state of affairs, starting his discussion saying, “We are nowhere near close to an industry-wide solution.”

Qualification Standards on Performance Type Testing

oilplatformwebThe Valve Manufacturers Association held its annual Technical Seminar & Exhibits at the Hilton NASA Clear Lake in Houston, March 8-9. More than a dozen speakers presented on a variety of topics that centered on “Prevailing Challenges and Solutions for the Oil & Gas/Petrochemical Industries.”

Ron Manson, director of application engineering for Cameron Valves and Measurement, spoke about the qualification standards on performance type testing for valves used top side and in facilities. With 34 years in the valve industry, Manson’s experience gives him firsthand knowledge of how the complex and often conflicting requirements national and company specifications affect valve manufacturers.

MSS Publishes Revised SP-55-2011, Approves SP-58-2009

ansiThe Manufacturers Standardization Society (MSS) announces that revised Standard Practice, SP-55-2011, Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components - Visual Method for Evaluation of Surface Irregularities, has been has been published AND approved by the American National Standards Institute (ANSI) as an American National Standard (ANS). They also approved Standard Practice, SP-58-2009, Pipe Hangers and Supports –Materials, Design, Manufacture, Selection, Application, and Installation.

Evaluating Standard Class Valve Castings

evaluating standard class valve castings 1Why is there a need for a new casting standard? That's the question asked-and answered-by Greg Johnson, president of Houston-based United Valve, during a presentation at VMA's Technical Seminar on March 3. Johnson discussed a "Proposed Specification for Evaluating Standard Class Valve Castings."

"A lot of new foundries are being built, some in new countries, and the paradigm is changing almost daily," Johnson observed. "Right now most foundries are in China and India, but in five years, who knows? There could be a shift to another country."

Rationalizing Valve Specifying Through Modern Data Methods

rationalizing valve specifying through modern data methodsOne of the presentations at the Aramco Services Company Technical Exchange Meeting in Houston in early May was entitled “Improving the Value Chain for Valves through Standardization of Metadata.” In it the presenters—Sharon Bickford, project manager at FIATECH; Ken Hamilton, project manager at PIP; Rick Hoenerhoff, associate director at PIP; and John Fish, who works in the area of customer relationships & quality assurance for Ford, Bacon, and Davis, LLC —pointed out that the process for managing valves on a project has not changed in 40 years.

 

Sorting Out Wireless Standards for Smart Valves and Actuators

sorting_out_wireless_standards_for_smart_valves_and_actuatorsBack in the ’90s Profibus and Foundation fieldbus competed to replace 4-20 mA communication for field devices like valves and process transmitters with all-digital systems. This was supposed to save a great deal of money on cabling and make possible a new world of smart field devices that could be diagnosed and recalibrated in the field. HART, which put a digital signal on top of the existing 4-20 mA loop, was already there but was considered outmoded by promoters of the new buses.

 

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Valve Magazine Digital Edition

14 wnt cover 160x214Inside the Winter 2014 issue…

• Compression Packing Friction
• Wireless Technology
• Purchasing Standards
• New EPA Concerns

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