Mss-sp72

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Copyrighted material licensed to Cameron International by Thomson Scientific, Inc. (www.techstreet.com). This copy downloaded on Thu Apr 12 06:30:26 -0500 2012 by authorized user Ariane Jesus. No further reproduction or distribution is permitted.

MSS SP-72-2010

Ball Valves with Flanged or Butt-Welding Ends for General Service

Standard Practice Developed and Approved by the ManufacturersStandardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, NE Vienna, Virginia 22180 Phone: (703) 281-6613 Fax: (703) 281-6671 e-mail: info@mss-hq.org

www.mss-hq.org

Copyrighted material licensed to Cameron International by Thomson Scientific, Inc. (www.techstreet.com). This copy downloaded on Thu Apr 12 06:30:26 -0500 2012 by authorized user Ariane Jesus. No furtherreproduction or distribution is permitted.

MSS

STANDARD PRACTICE

SP-72

This MSS Standard Practice was developed under the consensus of the MSS Technical Committee 401 and the MSS Coordinating Committee. The content of this Standard Practice is the result of the efforts of competent and concerned volunteers to provide an effective, clear, and non-exclusive specification that willbenefit the industry as a whole. This MSS Standard Practice is intended as a basis for common practice by the manufacturer, the user, and the general public. The existence of an MSS Standard Practice does not in itself preclude the manufacture, sale, or use of products not conforming to the Standard Practice. Mandatory conformance is established only by reference in a code, specification, salescontract, or public law, as applicable. "Other standards documents referred to herein are identified by the date of issue that was applicable to this Standard Practice at the date of issue of this Standard Practice. See Annex A. This Standard Practice shall remain silent on the applicability of those other standards of prior or subsequent dates of issue even though applicable provisions may not havechanged. References contained herein which are bibliographic in nature are noted as ‘supplemental’ in the text.” Unless otherwise specifically noted in this MSS SP, any standard referred to herein is identified by the date of issue that was applicable to the referenced standard(s) at the date of issue of this MSS Standard Practice (See Annex A). In this Standard Practice all notes, annexes, tables, andfigures are construed to be essential to the understanding of the message of the standard, and are considered part of the text unless noted as "supplemental". All appendices, if included, that appear in this document are construed as "supplemental". Supplemental information does not include mandatory requirements.

U.S. customary units in this Standard Practice are the standard; metric (SI)units are for reference only. Substantive changes in this 2010 edition are “flagged” by parallel bars as shown on the margins of this paragraph. The specific detail of the change may be determined by comparing the material flagged with that in the previous edition.

Any part of this Standard Practice may be quoted. Credit lines should read `Extracted from MSS SP-722010 with permission of thepublisher, Manufacturers Standardization Society of the Valve and Fittings Industry, Inc.'. Reproduction prohibited under copyright convention unless written permission is granted by Manufacturers Standardization Society of the Valve and Fittings Industry, Inc.

Originally Approved: February 1970

Copyright ©, 2010 by Manufacturers Standardization Society of the Valve and Fittings Industry, Inc.Printed in U.S.A.

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Copyrighted material licensed to Cameron International by Thomson Scientific, Inc. (www.techstreet.com). This copy downloaded on Thu Apr 12 06:30:26 -0500 2012 by authorized user Ariane Jesus. No further reproduction or distribution is permitted.

MSS

STANDARD PRACTICE

SP-72

FOREWORD
The 1999 Edition of MSS SP-72 was updated from the 1992 Edition by revising...
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