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Norm

ISO 7121:2016

Ausgabedatum: 2016 04 07

Steel ball valves for general-purpose industrial applications

ISO 7121:2016 specifies the requirements for a series of steel ball valves suitable for general-purpose industrial applications. It covers valves of the nominal sizes - ...
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Herausgeber:
International Organization for Standardization
Format:
Digital | 22 Seiten
Sprache:
Englisch

ISO 7121:2016 specifies the requirements for a series of steel ball valves suitable for general-purpose industrial applications.

It covers valves of the nominal sizes

- DN 8, 10, 15, 20, 25, 32, 40, 50, 65, 80, 100, 150, 200, 250, 300, 350, 400, 450, 500, and 600 (NPS 1/4, 3/8, 1/2, 3/4, 1, 11/4, 11/2, 2, 21/2, 3, 4, 6, 8, 10, 12, 14, 16, 18, 20 and 24),

and is applicable to the following pressure designations:

- PN 10; 16; 25; 40; 63; 100;

- Class 150; 300; 600; 800; 900.

NOTE Valve characteristics are not necessarily available in all nominal sizes for all pressure designations. For example, Class 800 applies only for valves with threaded end and socket weld ends up to DN 65 (NPS 21/2) and Class 900 applies only for reduced bore body seat openings.

It includes provisions for valve characteristics as follows:

- flanged and butt-welded ends in sizes 15 = DN = 600 (1/2 = NPS = 24);

- socket welding ends in sizes 8 = DN = 100 (1/4 = NPS = 4);

- threaded ends in sizes 8 = DN = 50 (1/4 = NPS = 2);

- body seat openings designated as full bore, reduced bore and double reduced bore;

- materials;

- testing and inspection.

ISO 7121:2016
2016 04 07
Steel ball valves for general-purpose industrial applications
Norm
ISO 7121:2006
2006 05 11
Steel ball valves for general-purpose industrial applications
Norm
ISO 7121:1986
1986 04 24
Flanged steel ball valves
Norm