Документы

European Committee for Standardization

Metal ball valves for petroleum, petrochemical and allied industries
 N EN ISO 17292

Annotation

This International Standard specifies the requirements for a series of metal ball valves suitable for petroleum, petrochemical, natural gas plants, and related 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, 600;

corresponding to nominal pipe sizes NPS:

— ?, , ?, ?, 1, 1 ?, 1 ?, 2, 2 ?, 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, 24;

and applies for pressure designations:

— Class 150; 300; 600; 800 (Class 800 applies only for valves with threaded and socket welding end);

— PN 16, 25, 40, 63, 100.

It includes provisions for testing and inspection and for valve characteristics as follows:

— flanged and butt-welded ends, in sizes 15 ? DN ? 600 (? ? NPS ? 24);

— socket welding and threaded ends, in sizes 8 ? DN ? 50 (? ? NPS ? 2);

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

— materials.

Автоматический перевод:

Металлические шаровые клапаны для нефти, нефтехимических и союзнических отраслей промышленности