This standard covers raised-face carbon steel welding-neck flanges in NPS 26 through NPS 60 with pressure ratings of Classes 75, 150, 300, 400, and 600, and in NPS 26 through NPS 48 with a pressure rating of Class 900. It also covers integral flanges for Classes 75, 150, and 300, cast or forged as the integral ends of flanged valves, fittings, or nozzle necks.
Số hiệu tiêu chuẩn
API STD 605
Tên tiêu chuẩn
Large-Diameter Carbon Steel Flanges (Nominal Pipe Sizes 26 Through 60, Classes 75, 150, 300, 400, 600, and 900)
Ngày phát hành
1988-03-00
Tiêu chuẩn tương đương
GB/T 13402 (1992), NEQ
Từ khóa
Carbon steels * Diameter * Flanges * Nominal sizes * Petroleum technology * Pipe couplings * Pipelines * Pipes * Sleeves * Steel flanges