标准摘要
[中文适用范围]: 本标准规定了符合标准等级ASME B16.34要求、具有全通径开口的耐腐蚀螺栓阀盖闸阀的要求,适用于过程管道应用。本标准规定了以下闸阀特性的要求:螺栓阀盖;外螺纹和轭架;上升阀杆;不上升手轮;单闸板或双闸板;楔形或平行密封;金属密封面;法兰或对焊端。涵盖公称管道尺寸(DN):15;20;25;32;40;50;65;80;100;150;200;250;300;350;400;450;500;600。对应于公称管道尺寸(NPS):1/2;3/4;1;11/4;11/2;2;21/2;3;4;6;8;10;12;14;16;18;20;24。适用于压力等级:150;300;600。附录C说明了螺栓阀盖闸阀,以建立阀门部件的标准术语。以公制(SI)单位的尺寸为标准;习惯单位仅供参考。如果产品带有API标志,并在API许可的设施中制造,则应适用附录A的要求。 [外文原描述]: This standard specifies the requirements for corrosion-resistant bolted bonnet gate valves meeting the requirements of Standard Class, ASME B16.34 and having full port openings for use in process piping applications. This standard sets forth the requirements for the following gate valve features: • bolted bonnet; • outside screw and yoke; • rising stems; • non-rising handwheels; • single or double gate; • wedge or parallel sealing; • metallic seating surfaces; • flanged or butt-welding ends
英文名称Corrosion-resistant, Bolted Bonnet Gate Valves— Flanged and Butt-welding Ends