1、MSS SP-153-2017 Modification of New Water Works Valves Standard Practice Developed and Approved by the Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, NE Vienna, Virginia 22180-4602 Phone: (703) 281-6613 Fax: (703) 281-6671 E-mail: standardsmsshq.org w
2、ww.msshq.org MSS STANDARD PRACTICE SP-153i This MSS Standard Practice was developed under the consensus of the MSS Technical Committee 310, and the MSS Coordinating Committee. The content of this Standard Practice is the resulting efforts of competent and experienced volunteers to provide an effecti
3、ve, clear, and non-exclusive standard that will benefit the industry as a whole. This MSS Standard Practice describes minimal requirements and 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 itsel
4、f preclude the manufacture, sale, or use of products not conforming to the Standard Practice. Mandatory conformance to this Standard Practice is established only by reference in other documents such as a code, specification, sales contract, or public law, as applicable. MSS has no power, nor does it
5、 undertake, to enforce or certify compliance with this document. Any certification or other statement of compliance with the requirements of this Standard Practice shall not be attributable to MSS and is solely the responsibility of the certifier or maker of the statement. “Unless indicated otherwis
6、e within this MSS Standard Practice, other standards documents referenced to herein are identified by the date of issue that was applicable to this Standard Practice at the date of approval of this MSS Standard Practice (see Annex A). This Standard Practice shall remain silent on the validity of tho
7、se other standards of prior or subsequent dates of issue even though applicable provisions may not have changed.” By publication of this Standard Practice, no position is taken with respect to the validity of any potential claim(s) or of any patent rights in connection therewith. MSS shall not be he
8、ld responsible for identifying any patent rights. Users are expressly advised that determination of patent rights and the risk of infringement of such rights are entirely their responsibility. In this Standard Practice, all text, notes, annexes, tables, figures, and references are construed to be es
9、sential to the understanding of the message of the standard, and are considered normative unless indicated as “supplemental”. All appendices, if included, that appear in this document are construed as “supplemental”. Note that supplemental information does not include mandatory requirements. Non-tol
10、eranced dimensions in this Standard Practice are nominal unless otherwise specified. Excerpts of this Standard Practice may be quoted with permission. Credit lines should read Extracted from MSS SP-153-2017 with permission of the publisher, Manufacturers Standardization Society of the Valve and Fitt
11、ings Industry. Reproduction and/or electronic transmission or dissemination is prohibited under copyright convention unless written permission is granted by the Manufacturers Standardization Society of the Valve and Fittings Industry Inc. All rights reserved. Originally Approved: August 2017 Origina
12、lly Published: November 2017 MSS is a registered trademark of Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. Copyright , 2017 by Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. Printed in U.S.A. MSS STANDARD PRACTICE SP-153ii TABLE OF CO
13、NTENTS SECTION PAGE PURPOSE . 1 1 SCOPE . 1 2 TERMS AND DEFINITIONS . 1 3 OVERALL MODIFICATION REQUIREMENTS . 2 4 MARKING, TRACEABILITY, ASSEMBLY, DISASSEMBLY, AND STORAGE . 4 SPECIFIC MODIFICATION, EVALUATION, AND TESTING PROCEDURES 5 BORE AND END CONNECTION CHANGES 6 6 REPLACEMENT OF VALVE TRIM .
14、7 7 EXTENSIONS FOR BURIED SERVICE . 8 8 MISCELLANEOUS MODIFICATIONS 8 9 TESTING AND NON-DESTRUCTIVE EVALUATION . 9 ANNEX A Referenced Standards and Applicable Dates 11 MSS STANDARD PRACTICE SP-1531 MODIFICATION OF NEW WATER WORKS VALVES PURPOSE The purpose of this Standard Practice is to ensure that
15、 the quality of workmanship and materials meet all applicable standards and codes. 1. SCOPE 1.1 This Standard Practice establishes minimum requirements for the modification of new American Water Works Association (AWWA) valves manufactured in accordance with one or more of the following AWWA standar
16、ds, and that require modification to meet specific end user requirements for use in water works applications. Specific AWWA standards, pertaining to this Standard Practice, include: AWWA Standard Valve Type C507 Ball C504 and C516 Butterfly C508 and C518 Check C500, C509, and C515 Gate C520 Knife Ga
17、te C517 Plug 1.2 The procedures contained within this Standard Practice are general in nature and the facility performing the modification(s) may need to augment them as necessary to achieve compliance with all applicable codes and standards. 2. TERMS AND DEFINITIONS 2.1 End User The ultimate owner
18、and/or user of a valve. 2.2 Low Stress Stamp Alphanumeric or symbolic steel stamps designed to reduce stress raisers in the components they are stamped upon. 2.3 Match Marks Scribed or written marks used to match the specific orientation of a valve during disassembly and reassembly. 2.4 OEM The orig
19、inal manufacturer of the valve. 2.5 Valve Modification The alteration of a completed valve after shipment from the manufacturers plant, to meet specific customer specifications or requirements. 2.6 Valve Trim, Ball Valve The ball, seats and stem. 2.7 Valve Trim, Butterfly Valve The disc, seats and s
20、tem. 2.8 Valve Trim, Check Valve The flapper, seat and stem. 2.9 Valve Trim, Gate Valve The gate, seats and stem. 2.10 Valve Trim, Plug Valve The plug, seats and stem. 2.11 Other Definitions Additional definitions may be found in MSS SP-96. MSS STANDARD PRACTICE SP-1532 3. OVERALL MODIFICATION REQUI
21、REMENTS 3.1 Quality System 3.1.1 Facilities performing valve modification work must have an established quality system based on the current edition of ISO 9001 or an equivalent quality management system. 3.1.2 The quality system must include controlled written or secure digital shop procedures and/o
22、r work instruction documents. 3.1.3 The facility must utilize a system to monitor modification steps and raw material usage and identification. ADVISORY: It is the responsibility of the valve end user (i.e., owner) to determine if the modifications will void the original manufacturer warranty or whe
23、ther the original manufacturer will assume warranty responsibility after modification. 3.2 Documentation 3.2.1 All valves shall be marked with a unique identification number or code which is recorded in a log or entered into a shop order management system or database. This identification number shal
24、l be used for any further in-process identification and report purposes. See Section 4.2. 3.2.2 All raw materials used in pressure boundary applications shall be 100% traceable with a material identification number or code applied to each piece of incoming raw material. Material identification numbe
25、rs or codes shall be written on the individual work order or logged into a shop traveler, database, or log. All material test reports shall be kept on file for a minimum of ten years from their original purchase date, or ultimate use date, whichever is longer. 3.2.3 A certificate of compliance shall
26、 be maintained on other components such as gaskets, packing, seals, and bolting. 3.3 Design 3.3.1 AWWA standards have conservative safety factors for valve components. Products with design modifications made according to this Standard Practice shall also remain in compliance with the governing AWWA
27、standard. 3.3.2 Any facility performing modifications requiring design calculations shall have a responsible qualified engineer capable of performing such calculations, or have the calculations reviewed by a qualified third party. As an alternative, design calculations may be performed, and drawings
28、 provided by the original manufacturer of the valve being modified. 3.3.3 All facilities performing modifications requiring design work shall create and maintain detailed dimensional drawings of the modification components. These drawings shall be kept for the purpose of design verification and the
29、replication of spare parts. 3.3.4 Design drawings and calculations shall be kept on file for a minimum of ten years. MSS STANDARD PRACTICE SP-1533 3.4 OEM Authorization and NCR Reporting 3.4.1 Facilities performing valve modifications shall be authorized by the manufacturer of the valve(s) to be mod
30、ified. Work undertaken during modification shall be consistent with published Operation ANSI/ASME B16.34-2017 Valves Flanged, Threaded and Welding End B16.47-2017 Large Diameter Steel Flanges: NPS 26 Through NPS 60 Metric/Inch Standard B16.5-2017 Pipe Flanges and Flanged Fittings: NPS 1/2 through NP
31、S 24 Metric/Inch Standard B31.3-2016 Process Piping BPVC-VIII-Div. I-2017 Boiler and Pressure Vessel Code, Section VIII, Division I: Rules for Construction of Pressure Vessels BPVC-IX-2017 Boiler and Pressure Vessel Code, Section IX: Welding and Brazing Qualifications PCC-1-2013 Guidelines for Press
32、ure Boundary Bolted Flange Joint Assembly ASNT; ANSI/ASNT SNT-TC-1A-2016 Personnel Qualification and Certification in Nondestructive Testing; including ANSI/ASNT CP-105-2016, Training Outlines for Qualification of Nondestructive Testing Personnel AWS; ANSI/AWS D1.1/D1.1M:2015 Structural Welding Code
33、 Steel; including 2016 Errata AWWA; ANSI/AWWA C500-09 Metal-Seated Gate Valves for Water Supply Service C504-15 Rubber-Seated Butterfly Valves C507-15 Ball Valves, 6 In. Through 60 In. (150 mm Through 1,500 mm) C508-17 Swing-Check Valves for Waterworks Service, 2 In. Through 48 In. (50-mm Through 1,
34、200 mm) C509-15 Resilient-Seated Gate Valves for Water Supply Service C516-14 Large-Diameter Rubber-Seated Butterfly Valves, Sizes 78 In. (2,000 mm) and Larger C515-15 Reduced Wall Resilient-Seated Gate Valves for Water Supply Service C517-16 Resilient-Seated Cast-Iron Eccentric Plug Valves C518-13
35、Dual-Disc Swing-Check Valves for Waterworks Service C520-14 Knife Gate Valves, Sizes 2 In. (50 mm) Through 92 In. (2,400 mm) MSS STANDARD PRACTICE SP-15312 ANNEX A Referenced Standards and Applicable Dates (Continued) This Annex is an integral part of this Standard Practice and is placed after the m
36、ain text for convenience. Standard Name Description ISO ISO 9001:2015 Quality Management Systems Requirements Supplemental Information: See handbook ISO 9001 for Small Businesses What to Do, jointly published in 2010 by ISO and the International Trade Centre (ITC) (2009) MSS; ANSI/MSS SP-96-2017 Ter
37、minology for Valves, Fittings, and Their Related Components NSF 61-2016 Drinking Water System Components Health Effects; including 2016 Amendment 372-2016 Drinking Water System Components Lead Content MSS STANDARD PRACTICE SP-15313 ANNEX A Referenced Standards and Applicable Dates (Continued) This A
38、nnex is an integral part of this Standard Practice and is placed after the main text for convenience. The following organizations appear on the previous pages of this Annex: ANSI American National Standards Institute 25 West43rdStreet, Fourth Floor New York, NY 10036-7406 ASME ASME International (Am
39、erican Society of Mechanical Engineers) Two Park Avenue New York, NY 10016-5990 ASNT American Society for Non-Destructive Testing 1711 Arlingate Lane, P.O. Box 28518 Columbus, OH 43228-0518 AWS American Welding Society 550 NW LeJeune Road Miami, FL 33126-5699 AWWA American Water Works Association 66
40、66 West Quincy Avenue Denver, CO 80235-3098 ISO International Organization for Standardization 1, ch. de la Voie-Creuse, Case Postale 56 CH-1211 Geneva 20, Switzerland MSS Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, NE Vienna, VA 22180-4602 NSF Nat
41、ional Sanitation Foundation 789 N Dixboro Road Ann Arbor, MI 48105-9723 MSS STANDARD PRACTICE SP-15314 This Page Intentionally Left Blank Manufacturers Standardization Society of the Valve and Fittings Industry Purchase or View a Full Listing of MSS Standards at: http:/msshq.org/Store/PriceList.cfm
42、MSS Standard Practices (SPs) related to or referenced in this publication: ANSI/MSS SP-96 Terminology for Valves, Fittings, and Their Related Components ANSI/MSS SP-25 Standard Marking System for Valves, Fittings, Flanges, and Unions American National Standards Published by MSS, an ANSI-accredited S
43、tandards Developer:ANSI/MSS SP-25 Standard Marking System for Valves, Fittings, Flanges, and UnionsANSI/MSS SP-44 Steel Pipeline FlangesANSI/MSS SP-55 Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components Visual Method for Evaluation of Surface Irregularities
44、ANSI/MSS SP-58 Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and InstallationANSI/MSS SP-96 Terminology for Valves, Fittings, and Their Related ComponentsANSI/MSS SP-114 Corrosion Resistant Pipe Fittings Threaded and Socket Welding Class 150 and 1000ANSI/MSS SP-
45、134 Valves for Cryogenic Service, including Requirements for Body/Bonnet ExtensionsANSI/MSS SP-135 High Pressure Knife Gate Valves ANSI/MSS SP-138 Quality Standard Practice for Oxygen Cleaning of Valves and FittingsANSI/MSS SP-144 Pressure Seal Bonnet Valves Do not violate copyright laws All Standar
46、d Practices are officially available only from MSS and through our authorized distributors: About MSS The Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry is a non-profit technical association organized for development and improvement of industry, national and internati
47、onal codes and standards for Valves, Valve Actuators, Valve Modifications, Pipe Fittings, Flanges, Pipe Hangers and Supports, and Associated Seals. Since its establishment in 1924, MSS has been dedicated to developing standards for national and global applications, in cooperation with other standard
48、izing bodies and regulatory authorities. For more information on membership and eligibility requirements, visit: http:/msshq.org/Store/Membership.cfm Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, NE, Vienna, VA 22180-4620 Phone (703) 281-6613 Fax (703) 281-6671 “The Technical Voice of the Industry” IHS-MSS SP-153-2017
