1、 MSS SP-131-2010 Metallic Manually Operated Gas Distribution 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 Phone: (703) 281-6613 Fax: (703) 281-6671 e-mail: infomss-hq.o
2、rg www.mss-hq.org MSS STANDARD PRACTICE SP-131i This MSS Standard Practice was developed under the consensus of the MSS Technical Committee 501 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 e
3、ffective, clear, and non-exclusive specification that will benefit 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 manufactu
4、re, sale, or use of products not conforming to the Standard Practice. Mandatory conformance is established only by reference in a code, specification, sales contract, or public law, as applicable. “Unless otherwise specifically noted in this MSS Standard Practice, other standards documents referred
5、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 C. This Standard Practice shall remain silent on the applicability of those other standards of prior or subsequent dates of issue even though applicab
6、le provisions may not have changed. References contained herein which are bibliographic in nature are noted as supplemental in the text.” In this Standard Practice all notes, annexes, tables, and figures are construed to be essential to the understanding of the message of the standard, and are consi
7、dered 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 for this Standard Practice. Substantive changes in this 2010 edition are “flagged” by par
8、allel 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. U.S. customary units in this Standard Practice are the standard; (SI) metric units are for reference only. Any part of this S
9、tandard Practice may be quoted. Credit lines should read Extracted from MSS SP-131-2010 with permission of the publisher, Manufacturers Standardization Society of the Valves and Fittings Industry, Inc. Reproduction is prohibited under copyright convention unless written permission is granted by Manu
10、facturers Standardization Society of the Valve and Fittings Industry Inc. Originally Approved: September 2003 Originally Published: November 2004 Current Edition Approved: May 2010 Current Edition Published: September 2010 Copyright , 2004, 2010 by Manufacturers Standardization Society of the Valve
11、and Fittings Industry, Inc. Printed in U.S.A. MSS STANDARD PRACTICE SP-131ii TABLE OF CONTENTS SECTION PAGE PURPOSE . 1 1 SCOPE 1 2 DEFINITIONS AND ABBREVIATONS 1 3 DOCUMENTATION . 1 4 CONSTRUCTION . 1 5 DESIGN QUALIFICATION REQUIREMENTS 3 6 PRODUCTION TESTING REQUIREMENTS . 5 7 PACKAGING AND SHIPPI
12、NG 5 8 INSTALLATION INSTRUCTIONS . 5 TABLE B1 Maximum Operating Torque 7 B2 Minimum Operating Torque 7 B3 Minimum Flow Capacity and Flow Coefficient 7 ANNEX A Two (2) Inch Square Operating Nuts . 6 B Operating Torque, Flow Capacity, and Flow Coefficiency Tables B1, B2, and B3 . 7 C Referenced Standa
13、rds and Applicable Dates . 8 MSS STANDARD PRACTICE SP-1311 PURPOSE To provide a Standard Practice for metallic valves used in fuel gas piping systems which are manually operated both above and below ground. 1. SCOPE 1.1 This Standard Practice covers Metallic Gas Distribution Valves designed for oper
14、ation at any pressure from 0 psig to a maximum of 285 psig, at operating temperatures ranging from -20F to 150F, and sizes from 1/2to 12 NPS. 2. DEFINITIONS AND ABBREVIATIONS 2.1 Gas Distribution System: The pipeline used for the delivery of gas. 2.2 Within this Standard Practice, definitions and ab
15、breviations contained in MSS SP-96 shall also apply. 3. DOCUMENTATION 3.1 If required by the purchasers specifications, the manufacturer shall furnish the following information: 3.1.1 Catalog Data or Installation Instructions The manufacturer shall supply catalog data, including illustrations and a
16、parts bill that identifies the materials of construction list. This information shall provide sufficient detail to serve as a guide for operation and for disassembly and assembly of the valve if servicing is required, and for ordering of spare parts. 3.1.2 Customer Approval Drawings When specified o
17、n the purchase order, the manufacturer shall submit to the purchaser for approval one set of drawings showing the installation dimensions, construction details, materials of construction used for the components of the valve and testing parameters. All production valves furnished shall be in accordan
18、ce with these drawings as approved by the purchaser. 3.1.3 Certification When specified on the purchase order, the manufacturer shall furnish a letter or statement of certification stating that the products and materials used in their construction conform to the applicable requirements of this Stand
19、ard Practice, other applicable specifications, and that all required tests specified herein have been performed and all requirements have been met. 4. CONSTRUCTION 4.1 General All valves constructed in accordance with this Standard Practice shall provide gas tightness, safety, and reliability for th
20、e intended application. All materials used in valves produced under this Standard Practice shall conform to the requirements stipulated in the following sections and shall be suitable for the particular application. Corrosion considerations should be addressed during the materials selection process
21、for valve components, and should be suitable for the anticipated service conditions of completed valve assemblies. Steel valves must be constructed with steel bodies, covers, and bonnets. 4.2 Castings All castings shall be produced without defects which will impair their serviceability. 4.2.1 Carbon
22、 Steel The requirements of ASTM A216 or ASTM A487 and ASTM A703 shall be met, as a minimum. The only acceptable repair method for steel castings used for pressure containment shall be a weld repair procedure meeting the requirements of API 1104 and ASTM A488, including any necessary heat treatment.
23、4.2.2 Stainless Steel The requirements of ASTM A351 and ASTM A703 shall be met, as a minimum. The only acceptable repair method for stainless steel castings used for pressure containment shall be a weld repair procedure meeting the requirements of API 1104 and ASTM A488, including any necessary heat
24、 treatment. METALLIC MANUALLY OPERATED GAS DISTRIBUTION VALVES MSS STANDARD PRACTICE SP-1312 4.2.3 Iron The requirements of ASTM A126 for gray iron; or ASTM A395 or ASTM A536 for ductile iron; or ASTM A47 or ASTM A197 for malleable iron, shall be met, as a minimum. Plugging, welding, impregnating or
25、 other repairing of any defects shall not be allowed for pressure containment castings. 4.2.4 Copper Alloy The requirements of ASTM B16 or ASTM B584 shall be meet, as a minimum. Plugging, welding, brazing, impregnating, or other repairing of any defects shall not be allowed for pressure containment
26、castings. 4.3 Forgings 4.3.1 Steel Forgings Shall be produced to the requirements of ASTM A105. 4.3.2 Stainless Steel Forgings Shall be produced to the requirements of ASTM A473. 4.3.3 Copper Alloy Forgings Shall be produced in accordance with ASTM B124. 4.4 Fabricated ANSI/API 6D-2008 Specification
27、 for Pipeline Valves; w/ Addendum 1 (2009), Errata 1 (2008), Errata 2 (2008), Errata 3 (2009), Errata 4 (2010). (Nationally Adopted. Identical to ISO 14313:2007) 6FA-1999 (R2006) Specification for Fire Test for Valves; w/Errata (2006), Errata 2 (2008) 607-2005 Fire Test for Soft-Seated Quarter-Turn
28、Valves; w/ Errata (2008) (Nationally Adopted. Identical to ISO 10497:2004) 1104-2005 (R2010) Welding of Pipelines and Related Facilities; w/ Addendum ANSI/ASME B1.20.1-83 (R2006) Pipe Threads, General Purpose, Inch B1.20.3-76 (R2008) Dryseal Pipe Threads, Inch B16.1-05 Gray Iron Pipe Flanges and Fla
29、nged Fittings: Classes 25, 125, and 250 B16.5-09 Pipe Flanges and Flange Fittings: NPS 1/2through NPS 24 Metric/Inch Standard B16.10-09 Face-to-Face and End-to-End Dimensions of Valves B16.25-07 Buttwelding EndsB16.33-02 (R2007) Manually Operated Metallic Gas Valves for Use in Gas Piping Systems up
30、to 125 psi (Sizes NPS 1/2- NPS 2) B16.34-09 Valves Flanged, Threaded and Welding End B16.38-07 Large Metallic Valves for Gas Distribution: Manual Operated, NPS 2 1/2(DN 65) to NPS 12 (DN 300), 125 psig (8.6 bar) Maximum ASTM; ANSI/ASTM Standard Specification for: A20/A20M-09 General Requirements for
31、 Steel Plates for Pressure Vessels A36/A36M-08 Carbon Structural Steel A47/A47M-99(2009) Ferritic Malleable Iron Castings A53/A53M-07 Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded, and Seamless A105/A105M-09 Carbon Steel Forgings for Piping Applications A126-04(2009) Gray Iron Castings for
32、Valves, Flanges, and Pipe Fittings A193/A193M-09 Alloy-Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure Service and Other Special Purpose Applications A197/A197M-00(2006) Cupola Malleable Iron A216/A216M-08 Steel Castings, Carbon, Suitable for Fusion Welding, for Hig
33、h-Temperature Service A240/A240M-09c Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications A351/A351M-06 Castings, Austenitic, for Pressure-Containing Parts A395/A395M-99(2009) Ferritic Ductile Iron Pressure-Retaining Castings for Use
34、at Elevated Temperatures A473-01(2009) Stainless Steel Forgings A479/A479M-09 Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels A487/A487M-93(2007) Steel Castings Suitable for Pressure Service MSS STANDARD PRACTICE SP-1319 ANNEX C (Continued) Referenced Standards and Appl
35、icable Dates This Annex is an integral part of this Standard Practice and is placed after the main text for convenience. Standard Name Description ASTM; ANSI/ASTM Standard Specification for: A488/A488M-09 Steel Castings, Welding, Qualification of Procedures and Personnel A513-08a Electric-Resistance
36、-Welded Carbon and Alloy Steel Mechanical Tubing A536-84(2009) Ductile Iron Castings A703/A703M-08a Steel Castings, General Requirements, for Pressure-Containing Parts B16/B16M-05 Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines B124/B124M-09 Copper and Copper Alloy Forging Rod, Bar,
37、 and Shapes B584-09a Copper Alloy Sand Castings for General Applications D2000-08 Rubber Products in Automotive Applications D2513-09a Polyethylene (PE) Gas Pressure Pipe, Tubing, and Fittings D2517-06 Reinforced Epoxy Resin Gas Pressure Pipe and Fittings ISA; ANSI/ISA 75.02.01-2008 Control Valve Ca
38、pacity Test Procedures MSS SP-6-2007 Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings SP-9-2008 Spot Facing for Bronze, Iron and Steel Flanges SP-25-2008 Standard Marking System for Valves, Fittings, Flanges, and Unions SP-61-2009 Pressure Testing
39、 of Valves SP-67-2002a Butterfly Valves SP-72-2010 Ball Valves with Flanged or Butt-welding Ends for General Service SP-96-2001 (R 2005) Guidelines on Terminology for Valves and Fittings MSS STANDARD PRACTICE SP-13110 ANNEX C (Continued) Referenced Standards and Applicable Dates This Annex is an int
40、egral part of this Standard Practice and is placed after the main text for convenience. Publications of the following organizations appear on the previous page in this Annex: ANSI American National Standards Institute 25 West 43rdStreet, Fourth Floor New York, NY 10036-7406 API American Petroleum In
41、stitute 1220 L Street, N.W. Washington, DC 20005-4070 ASME American Society of Mechanical Engineers Three Park Avenue New York, NY 10016-5990 ASTM ASTM International 100 Barr Harbor Dr., P.O. Box C700 West Conshohocken, PA 19428-2959 ISA International Society of Automation 67 Alexander Drive Researc
42、h Triangle Park, NC 27709 MSS Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, N.E. Vienna, VA 22180-4602 Listing of MSS Standard Practices TITLE SP-6-2007 Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fitt
43、ings SP-9-2008 Spot Facing for Bronze, Iron and Steel Flanges SP-25-2008 Standard Marking System for Valves, Fittings, Flanges, and Unions SP-42-2009 Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Ends (Classes 150, 300 however, the contents of these SPs are now p
44、art of newly revised SP-58-2009. MSS is an ANSI-accredited American National Standards developer. A number of former MSS Standard Practices have been adopted and published by other developers as American National Standards. In order to maintain a single source of authoritative information, MSS has withdrawn its Standard Practices in such cases. Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, N.E., Vienna, VA 22180-4620 (703) 281-6613 Fax # (703) 281-6671 MSS-IHS SP-131-2010
