ISO 15761-2002 石油和天然气工业用尺寸为DN 100及更小的钢闸阀、球阀和止回阀

标准号：ISO 15761-2002
中文标准名称：石油和天然气工业用尺寸为DN 100及更小的钢闸阀、球阀和止回阀
英文标准名称：Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and natural gas industries
标准类型：J16
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：J16
国际标准分类号：23.060.01
适用范围：This International Standard specifies the requirements for a series of compact steel gate, globe and check valves for petroleum and natural gas industry applications. It is applicable to valves of — nominal sizes DN 8, 10, 15, 20, 25, 32, 40, 50, 65, 80 and 100, — 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 and 4, and to pressure designations of Class 150, Class 300, Class 600, Class 800 and Class 1500. Class 800 is not a listed class designation, but is an intermediate class number widely used for socket welding and threaded end compact valves. It includes provisions for the following valve characteristics: — outside screw with rising stems (OS & Y), in sizes 8 ≤ DN ≤ 100 and pressure designations 150 ≤ Class ≤ 1500 including Class 800; — inside screw with rising stems (ISRS), in sizes 8 ≤ DN ≤ 65 and pressure designations of Class ≤ 800; — socket welding or threaded ends, in sizes 8 ≤ DN ≤ 65 and pressure designations of Class 800 and Class 1500; — flanged or butt-welding ends, in sizes 15 ≤ DN ≤ 100 and pressure designations of 150 ≤ Class ≤ 1500, excluding flanged end Class 800; — bonnet joint construction — bolted, welded, threaded with seal weld, and union nut for nominal pressure rating Class ≤ 800; — body seat openings; — materials, as specified; — testing and inspection. This International Standard is applicable to valve end flanges in accordance with ASME B16.5 and valve body ends having tapered pipe threads to ISO 7-1 or ASME B1.20.1. It is applicable to extended body construction in sizes 15 ≤ DN ≤ 50 and pressure designations of Class 800 and Class 1500, and to bellows and bellows assembly construction as may be adaptable to gate or globe valves in sizes 8 ≤ DN ≤ 50. It covers bellows stem seal type testing requirements.