ČSN EN ISO 17292   (134105) Kohouty kovové kulové pro ropný průmysl, petrochemický průmysl a příbuzná průmyslová odvětví

Anotace textu normy ČSN EN ISO 17292   (134105)

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:

- 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2, 2 1/2, 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 (1/2 <= NPS <= 24),

- socket welding and 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.