ISO 10631:2021
Industrial valves - Metallic butterfly valves

Standard No.
ISO 10631:2021
Release Date
2021
Published By
International Organization for Standardization (ISO)
Latest
ISO 10631:2021
Scope
This document specifies the general requirements for design, materials (e.g. steel, cast iron, ductile iron, copper alloy), pressure/temperature ratings and testing for butterfly valves having metallic bodies for use in flanged or butt-welding piping systems. This document applies to metallic butterfly valves used for all industrial applications. Additional requirements given in the relevant application standards can apply to butterfly valves used for more specific applications (e.g. for the water industry, the chemical and petrochemical process industry, the oil and gas industry). This document covers butterfly valves of the following nominal sizes, DN and NPS: — DN 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; (550); 600; (650); 700; 750; 800; 900; 1000; 1050; 1200; 1400; 1500; 1600; 1800; 2000; 2200; 2400. — NPS 1 ½; 2; 2 ½; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; (22); 24; (26); 28; 30; 32; 36; 40; 42; 48; 54; 56; 60; 64; 66; 72; 78; 80; 84; 88; 90; 96. This document is applicable to butterfly valves of the following pressure designations, PN and Class: — PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; — Class 25, 125; 150; 250; 300; 600. NOTE 1 It is possible that the nominal sizes listed are not available for all pressure designations. NOTE 2 Nominal sizes listed in parenthesis are not common industry sizes, but are used in some application standards.

ISO 10631:2021 Referenced Document

  • ASME B1.1 Unified Inch Screw Threads (UN, UNR, and UNJ Thread Forms)
  • ASME B16.1 Gray Iron Pipe Flanges and Flanged Fittings Classes 25, 125, and 250
  • ASME B16.24 Cast Copper Alloy Pipe Flanges, Flanged Fittings, and Valves Classes 150, 300, 600, 900, 1500, and 2500*， 2022-04-08 Update
  • ASME B16.34 Valves Flanged, Threaded and Welding End
  • ASME B16.42 Ductile Iron Pipe Flanges and Flanged Fittings Classes 150 and 300
  • ASME B16.47 Large diameter steels flanges - NPS 26 through NPS 60; Addenda
  • ASME B16.5 Forged Nonferrous Fittings, SocketWelding and Threaded (Titanium, Titanium Alloys, Aluminum, and Aluminum Alloys)
  • EN 1092-1 Flanges and their joints - Circular flanges for pipes@ valves@ fittings and accessories@ PN designated - Part 1: Steel flanges
  • EN 1092-2 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iron flanges*， 2023-11-29 Update
  • EN 1092-3 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories PN designated - Part 3: Copper alloy flanges
  • EN 12516-1 Industrial valves - Shell design strength - Part 1: Tabulation method for steel valve shells
  • EN 12516-2 Industrial valves - Shell design strength - Part 2: Calculation method for steel valve shells*， 2021-09-30 Update
  • EN 12516-4 Industrial valves - Shell design strength - Part 4: Calculation method for valve shells manufactured in metallic materials other than steel
  • ISO 10497 Testing of valves — Fire type-testing requirements*， 2022-10-27 Update
  • ISO 1083 Spheroidal graphite cast irons - Classification
  • ISO 14737 Carbon and low alloy cast steels for general applications*， 2021-06-30 Update
  • ISO 185 Grey cast irons — Classification
  • ISO 4991 Steel castings for pressure purposes
  • ISO 5208 Industrial valves - Pressure testing of metallic valves
  • ISO 5209:2019 General purpose industrial valves — Marking
  • ISO 5211 Industrial valves — Part-turn actuator attachments*， 2023-09-01 Update
  • ISO 5752 Metal valves for use in flanged pipe systems - Face-to-face and centre-to-face dimensions*， 2021-06-01 Update
  • ISO 5922 Malleable cast iron
  • ISO 7005-3 Metallic flanges; part 3: copper alloy and composite flanges
  • ISO 9327-1 Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 1: General requirements
  • ISO 9327-2 Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy (Mo, Cr and CrMo) steels with specified elevated temperature properties
  • ISO 9327-3 Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 3: Nickel steels with specified low temperature properties
  • ISO 9327-4 Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 4: Weldable fine grain steels with high proof strength
  • ISO 9327-5 Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 5: Stainless steels
  • ISO 9328-1 Steel flat products for pressure purposes - Technical delivery conditions - Part 1: General requirements
  • ISO 9328-2 Steel flat products for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steels with specified elevated temperature properties
  • ISO 9328-3 Steel flat products for pressure purposes - Technical delivery conditions - Part 3: Weldable fine grain steels, normalized
  • ISO 9328-4 Steel flat products for pressure purposes - Technical delivery conditions - Part 4: Nickel-alloy steels with specified low temperature properties
  • ISO 9328-5 Steel flat products for pressure purposes - Technical delivery conditions - Part 5: Weldable fine grain steels, thermomechanically rolled

ISO 10631:2021 history

Industrial valves - Metallic butterfly valves


Copyright ©2024 All Rights Reserved