1.1 This standard specifies the requirements for metal ball valves suitable for petroleum, petrochemical, and
industrial applications that have:
— flanged ends in sizes DN 1 5 through DN 600 (NPS
1 / 2 through NPS 24);
— butt-welding ends in sizes DN 1 5 through DN 600 (NPS
1 / 2 through NPS 24);
— socket-welding ends in sizes DN 8 through DN 50 (NPS
1 / 4 through NPS 2);
— threaded ends in sizes DN 8 through DN 50 (NPS
1 / 4 through NPS 2).
Corresponding to the nominal pipe sizes in ASME B36.10M.
1.2 This standard applies to metal ball valves with pressure classes as follows:
— flanged ends in Classes 1 50, 300, and 600;
— butt-welding ends in Classes 150, 300, and 600;
— socket-welding ends in Classes 1 50, 300, 600, and 800;
— threaded ends in Classes 150, 300, 600, and 800.
1.3 This standard establishes requirements for bore sizes described as:
— full bore;
— single reduced bore;
— double reduced bore.
