ISO 15761:2020 石油和天然气工业用DN100及更小尺寸的钢制闸阀、截止阀和止回阀

标准编号：ISO 15761:2020

中文名称：石油和天然气工业用DN100及更小尺寸的钢制闸阀、截止阀和止回阀

英文名称：Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and natural gas industries

发布日期：2020-08

标准范围

本文件规定了石油和天然气工业应用的一系列紧凑型钢闸阀、截止阀和止回阀的要求。适用于下列阀门:-公称尺寸DN 8、10、15、20、25、32、40、50、65、80和100，-对应于公称管道尺寸NPS？、？、？、1、1、1、2、2、3和4，-压力名称PN 16、25、40、63、100、250和400，以及-压力等级为150、300、600、800、1500和2500。800级不是列出的等级名称，而是广泛用于本文件涵盖的承插焊接和螺纹端紧凑型阀门的中间等级编号。没有等效的PN名称。本文件包括以下阀门特性的规定:-带上升杆的外螺纹（OS&Y）:尺寸8≤ DN≤ 100;-带上升杆的内螺纹（ISR）:尺寸为8≤ DN≤ 65，压力代号PN≤ 100或100级≤ 800;-承插焊接或螺纹端:尺寸8≤ DN≤ 65;-法兰或对焊端，不包括800级法兰端；-采用螺栓连接、焊接或螺纹密封焊接的阀盖接头结构；-阀盖接头结构，使用压力代号为PN的联管螺母≤ 45岁或以上≤ 800;-身体座椅开口；-材料:按规定；-测试和检查。本文件涵盖符合EN 1092-1和ASME B16的阀门端法兰。5和阀体端部具有符合ISO 7-1或ASME B1的锥形管螺纹。20.1. 适用于尺寸为15的加长车身结构≤ DN≤ 50压力等级为800级和1500级，波纹管和波纹管组件结构适用于尺寸为8的闸阀或截止阀≤ DN≤ 50.还包括波纹管阀杆密封型式试验的要求。

This document 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, 1？, 1？, 2, 2？, 3 and 4,— pressure designations PN 16, 25, 40, 63, 100, 250 and 400, and— pressure designations Class 150, 300, 600, 800, 1 500 and 2 500.Class 800 is not a listed class designation, but is an intermediate Class number widely used for socket welding and threaded end compact valves covered by this document. There is no equivalent PN designation.This document includes provisions for the following valve characteristics:— outside screw with rising stems (OS & Y): in sizes 8 ≤ DN ≤ 100;— inside screw with rising stems (ISRS): in sizes 8 ≤ DN ≤ 65 with a pressure designation PN ≤ 100 or Class ≤ 800;— socket welding or threaded ends: in sizes 8 ≤ DN ≤ 65;— flanged or butt-welding ends excluding flanged end Class 800;— bonnet joint construction that is bolted, welded or threaded with seal weld;— bonnet joint construction that uses a union nut with a pressure designation PN ≤ 45 or Class ≤ 800;— body seat openings;— materials: as specified;— testing and inspection.This document covers valve end flanges in accordance with EN 1092-1 and ASME B16.5 and valve body ends having tapered pipe threads in accordance with ISO 7-1 or ASME B1.20.1. It is applicable to extended body construction in sizes 15 ≤ DN ≤ 50 with pressure designations Class 800 and Class 1 500 and to bellows and bellows assembly construction adaptable to gate or globe valves in sizes 8 ≤ DN ≤ 50. Also covered are requirements for bellows stem seal type testing.

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