ISO 28921-1:2013 PDF

Scope: This part of ISO 28921 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. This part of ISO 28921 covers isolation valves for use in cryogenic temperature service where the design low-temperature service is –50 °C down to –196 °C. This part of ISO 28921 does not apply to valves for cryogenic services, designed in accordance with Where the requirements of this part of ISO 28921 vary from those given in the valve product standards, the requirements of this part of ISO 28921 apply. This part of ISO 28921 covers valves with body, bonnet, bonnet extension or cover made of metallic materials. It 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; 1/2; 3/4; 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, and applies to pressure designations: — PN 16; 25; 40; 100; 160; 250. — Class 150; 300; 600; 800; 900; 1500. NOTE PN 250 and Class 1500 in sizes DN > 100 and NPS > 4 are not covered in this part of ISO 28921.

ISO 28921-1:2013 Referenced Document

ANSI/ASME B16.34 Valves - Flanged, Threaded, and Welding End
ASME
ASME B31.3
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
EN 12516-3 Valves - Shell design strength - Part 3: Experimental method
EN 13480-2 Metallic industrial piping - Part 2: Materials
EN 1515-1 Flanges and their joints - Bolting - Part 1: Selection of bolting
ISO 10434 Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries
ISO 10497 Testing of valves — Fire type-testing requirements
ISO 10631 Industrial valves - Metallic butterfly valves
ISO 14313 Petroleum and natural gas industries - Pipeline transportation systems - Pipeline valves; Technical Corrigendum 1
ISO 15761 Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and natural gas industries
ISO 17292 Metal ball valves for petroleum, petrochemical and allied industries
ISO 5208 Industrial valves - Pressure testing of metallic valves
ISO 5209 General purpose industrial valves — Marking

2022 ISO 28921-1:2022 Industrial valves — Isolating valves for low-temperature applications — Part 1: Design, manufacturing and production testing
2013 ISO 28921-1:2013 Industrial valves - Isolating valves for low-temperature applications - Part 1: Design, manufacturing and production testing