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The 5th Edition of AWWA M11 Pipe Design Clarified #2

One of STI/SPFA’s goals with our experts’ design tips is to point out important changes in the new edition of AWWA M11 and to provide background of why such revisions were made.  Steel pipe systems have been designed, fabricated, and installed with decades of experience, achieving reliable and long-lasting operational service, while establishing proven safety factors that the engineering community has trusted.  This article will discuss changes made to

  • harnessed coupling design and the associated explanatory material included within Appendixes B and C,
  • changes in design to thrust anchor rings, and
  • expansion of the guidance provided with the use of stulling to handle large diameter steel pipe.

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The 5th Edition of AWWA M11 Pipe Design Clarified - #1 Outlets: The Rest of the Story

The 5th edition of AWWA M11 has been available for a little over a year and the benefits to engineers have been recognized for the value it has for steel pipe design. There were numerous changes and additions that are intended to clarify important design criteria when designing steel water pipe. 

The nature of engineering design is that the knowledge used to design large facilities is learned and remembered mostly during the work on a project. This series of articles will highlight many of the major changes in the new AWWA M11.

The first article in a series will concentrate on outlets in a pipeline. This article, along with the remaining articles, will become useful references for the design of pipeline and treatment plant projects.

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Water Tower, Part of Century Club, Slated to Get Painted

The Patton Street Tower, located in Xenia, Ohio, is one of the oldest water towers and part of the Century Club. The tower will be repainted for the first time in 20 to 30 years. 

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Charles A. Frey Jr. and Rich Horn Celebrated as STI/SPFA Hall of Fame Award Recipients

On April 14, Charles A. Frey Jr., Vice President of Highland Tank and Manufacturing and Rich Horn, Regional Sales Manager, Chicago Bridge & Iron Company (CB&I), were presented with the Steel Tank Institute/Steel Plate Fabricators Association (STI/SPFA) Hall of Fame Award during the 2018 Annual Meeting in Chandler, Arizona.

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2017 Product Award Winners Announced

Winners were recognized in 14 product categories for the 2017 Steel Fabricated Product of the Year Awards during the STI/SPFA annual meeting in Chandler, Arizona. 

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STI/SPFA 2018 Board of Directors Announced

The Steel Tank Institute/Steel Plate Fabricators Association (STI/SPFA) Board of Directors were elected at the Annual Meeting held in Chandler, Arizona by members of the association.

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New STI/SPFA Staff Fill Retirement Voids

Three new staff members join STI/SPFA team. 

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