Thursday, May 16, 2013

ASME B31.1: Power Piping Code

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Scope

ASME B31.1, Power Piping Code, prescribes requirements for the design, material, fabrication, erection, test, and inspection of power and auxiliary service piping systems for electric generation stations, industrial and institutional plants, central and district heating plants, and district heating systems. It does not apply to piping systems covered by other sections of the Code for Pressure Piping, and other piping which is specifically excluded from the scope of this code. 

Tuesday, May 14, 2013

ASME B31: Code For Pressure Piping

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Starting with Project B31 in March 1926, the first edition of American tentative Standard Code for Pressure Piping was published in 1935. In view of continuous industry developments and increases in diversified needs over the years, decisions were made to publish several sections of the Code for Pressure Piping. Since December 1978, the American National Standards Committee B31 was reorganized as theASME Code for Pressure Piping B31 Committee under procedures developed by the ASME and accredited by ANSI.

Sunday, May 12, 2013

ASME Section XI: Rules For In-Service Inspection of Nuclear Power Plant Components

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Scope

ASME Section XI comprises three divisions, each covering rules for inspection and testing of components of different types of nuclear power plants. These three divisions are as follows:
  • ASME Section XI, Division 1: Rules for Inspection and Testing of Components of Light-Water-Cooled Plants
  • ASME Section XI, Division 2: Rules for Inspection and Testing of Components of Gas-Cooled Plants
  • ASME Section XI, Division 3: Rules for Inspection and Testing of Components of Liquid-Metal-Cooled Plants.
Since the publication of the first edition of ASME Section XI in 1971, significant changes and additions have been incorporated, and as such, the organization of the later versions of ASME Section XI, Division 1, is considerably different from that of the first edition.

Thursday, May 9, 2013

ASME Section IX: Welding And Brazing Qualifications

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Scope

ASME Section IX consists of two parts—Part QW and Part QB—which deal with welding and brazing, respectively. In addition, ASME Section IX contains mandatory and nonmandatory appendixes.

ASME Section IX requirements relate to the qualification of welders, welding operators, brazers, and brazing operators and the procedures used in welding and brazing. They establish the basic criteria for welding and brazing observed in the preparation of welding and brazing requirements that affect procedure and performance.

Tuesday, May 7, 2013

ASME Section VIII: Pressure Vessels

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Scope

The rules of ASME Section VIII constitute construction requirements for pressure vessels. Division 2 ofASME SectionVIII delineates alternative rules of construction to Division 1 requirements. However, there are some differences between the scopes of the two divisions. Recently added Division 3 provides Alternative Rules for Construction of High-Pressure Vessels.

Sunday, May 5, 2013

ASME Section V: Non-Destructive Examination

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Scope

ASME Section V comprises Subsection A, Subsection B, and mandatory and nonmandatory appendixes. Subsection A delineates the methods of nondestructive examination, and Subsection B contains various ASTM standards covering nondestructive examination methods that have been adopted as standards. The standards contained in Subsection B are for information only and are nonmandatory unless specifically referenced in whole or in part in Subsection A or referenced in other code sections and other codes, such as ASME B31, Pressure Piping Code. 

Wednesday, May 1, 2013

ASME Section III: Nuclear Power Plant Components

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Scope

Division1of ASME Section III contains requirements for piping classified as ASME Class 1, Class 2, and Class 3. ASME Section III does not delineate the criteria for classifying piping into Class 1, Class 2, or Class 3; it specifies the requirements for design, materials, fabrication, installation, examination, testing, inspection, certifi- cation, and stamping of piping systems after they have been classified Class 1, Class 2, or Class 3 based upon the applicable design criteria and Regulatory Guide 1.26, Quality Group Classifications and Standards for Water-Steam, and Radio-Waste- Containing Components of Nuclear Power Plants. 

 

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