NF ISO 28921-1

NF ISO 28921-1

June 2013
Standard Cancelled

Industrial valves - Isolating valves for low-temperatures applications - Part 1 : design, manufacturing and production testing

ISO 28921-1:2013 specifies requirements for design, dimensions, material, fabrication and production testing of isolation valves for low-temperature applications. It applies to gate, globe, check, butterfly and ball valves and can be used for other valve types used in low-temperature services. ISO 28921-1:2013 covers isolation valves for use in cryogenic temperature service where the design low-temperature service is ?50 °C down to ? 96 °C. It covers valves with body, bonnet, bonnet extension or cover made of metallic materials. ISO 28921-1:2013 covers valves of nominal sizes DN: 10; 15; 20; 25; 32; 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; 600; 650; 700; 750; 800; 850; 900, corresponding to nominal pipe sizes NPS: 3/8; ½; ; 1; 11/4; 11/2; 2; 21/2; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; 24; 26; 28; 30; 32; 34; 36. It applies to pressure designations: PN 16; 25; 40; 100; 160; 250; Class 150; 300; 600; 800; 900; 1 500.

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Main informations

Collections

National standards and national normative documents

Publication date

June 2013

Number of pages

33 p.

Reference

NF ISO 28921-1

ICS Codes

23.060.01   Valves in general

Classification index

E29-490-1

Print number

1 - 24/06/2013

International kinship

ISO 28921-1:2013
Sumary
Industrial valves - Isolating valves for low-temperatures applications - Part 1 : design, manufacturing and production testing

ISO 28921-1:2013 specifies requirements for design, dimensions, material, fabrication and production testing of isolation valves for low-temperature applications. It applies to gate, globe, check, butterfly and ball valves and can be used for other valve types used in low-temperature services.

ISO 28921-1:2013 covers isolation valves for use in cryogenic temperature service where the design low-temperature service is ?50 °C down to ? 96 °C. It covers valves with body, bonnet, bonnet extension or cover made of metallic materials.

ISO 28921-1:2013 covers valves of nominal sizes DN: 10; 15; 20; 25; 32; 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; 600; 650; 700; 750; 800; 850; 900, corresponding to nominal pipe sizes NPS: 3/8; ½; ; 1; 11/4; 11/2; 2; 21/2; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; 24; 26; 28; 30; 32; 34; 36.

It applies to pressure designations:

  • PN 16; 25; 40; 100; 160; 250;
  • Class 150; 300; 600; 800; 900; 1 500.
Standard replaced by (1)
NF EN ISO 28921-1
May 2017
Standard Cancelled
Industrial valves - Isolating valves for low-temperature applications - Part 1 : design, manufacturing and production testing

<p>ISO 28921-1:2013 specifies requirements for design, dimensions, material, fabrication and production testing of isolation valves for low-temperature applications. It applies to gate, globe, check, butterfly and ball valves and can be used for other valve types used in low-temperature services.</p> <p>ISO 28921-1:2013 covers isolation valves for use in cryogenic temperature service where the design low-temperature service is ?50 °C down to ? 96 °C. It covers valves with body, bonnet, bonnet extension or cover made of metallic materials.</p> <p>ISO 28921-1:2013 covers valves of nominal sizes DN: 10; 15; 20; 25; 32; 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; 600; 650; 700; 750; 800; 850; 900, corresponding to nominal pipe sizes NPS: 3/8; ½; ; 1; 11/4; 11/2; 2; 21/2; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; 24; 26; 28; 30; 32; 34; 36. </p> <p>It applies to pressure designations:</p> <ul> <li>PN 16; 25; 40; 100; 160; 250;</li> <li>Class 150; 300; 600; 800; 900; 1 500.</li> </ul>

Table of contents
View the extract
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    2
  • 4 Exigences
    4
  • 4.1 Matériaux
    4
  • 4.2 Conception
    4
  • 5 Essai
    11
  • 5.1 Essais de production avec essai à basses températures
    11
  • 6 Échantillonnage
    12
  • 6.1 Exigences pour les lots
    12
  • 6.2 Taille de l'échantillon
    12
  • 6.3 Acceptation du lot
    12
  • 7 Marquage, étiquetage et emballage
    13
  • Annexe A (normative) Mode opératoire d'essai pour les essais de production des appareils de robinetterie à basses températures
    14
  • Annexe B (informative) Enregistrement d'essai à basses températures
    23
  • Bibliographie
    25
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