通用阀门 铁制旋启式止回阀(英文版)
英文名称: General purpose industrial valves-Cast iron swing check valves
中标分类: 机械>>通用零部件>>J16阀门
ICS分类: 流体系统和通用件>>23.060阀门
UDC分类: 621.646.24-034.1
发布部门: 国家技术监督局
发布日期: 1992-01-02
实施日期: 1993-06-01
首发日期: 1992-12-10
复审日期: 2004-10-14
归口单位: 全国阀门标准化技术委员会
主管部门: 中国机械工业联合会
起草单位: 铁岭阀门厂
页数: 平装16开, 页数:9, 字数:13千字
出版社: 中国标准出版社
1 主题内容与适用范围
本标准规定了铁制旋启式止回阀的结构型式、技术要求、试验方法、标志、包装、运输、贮存等基本要求。
本标准适用于公称压力PN0.25~4.0MPa,公称通径DN50~l 800mm,温度不高于350℃,工作介质为蒸汽、空气和水,法兰连接的灰铸铁和球墨铸铁制旋启式止回阀(以厂简称止回阀)。
2 引用标准
GB 152.1~152.4 紧固件 通孔及沉孔
GB 1184 形状和位置公差 未注公差的规定
GB 4216 灰铸铁管法兰及垫片尺寸
GB/T 13927 通用阀门 压力试验
GB 9112 钢制管法兰类型
GB 9113 整体钢制管法兰
GB 12220 通用阀门 标志
GB 12221 法兰连接金属阀门 结构长度
GB l2232 通用阀门 法兰连接铁制闸阀
GB/T 12252 通用阀门 供货要求
JB 308 阀门型号的编制方法
JB/T 5300 通用阀门材料
3 结构型式
3.1 止回阀的结构型式如图l~图4所示。型号编制按JB 308的规定。
3.2 止回阀的基本参数如表1所示。
1. Subject Content and Application Scope
This standard specifies basic requirements of cast iron swing check valve, such as structural types, technical requirements, test methods, marking, packaging, transportation and storage.
This standard is applicable to flanged swing check valve (hereinafter referred to as "check valve") made of gray pig iron and nodular graphite cast iron, whose nominal pressure is PN0.25 to 4.0MPa, inside nominal diameter is DN50mm to 1800mm, temperature is not higher than 350℃ and working medium is steam, air and water.
2. Normative References
GB 152.1~152.4 Fasteners - Clearance holes and Counterbores
GB 1184 Geometrical tolerance - Geometrical tolerances for features without individual tolerance indications
GB 4216 Grey Cast Iron Tube – Flange and Gasket Dimensions
GB/T 13927 Pressure testing for general purpose valves
GB 9112 Types and parameters for steel pipe flanges
GB 9113 Integral steel pipe flanges
GB 12220 General purpose industrial valves-Marking
GB 12221 Metal valves for use in flanged pipe systems-Face-to-face and centre-to-face dimensions
GB/T l2232 General purpose industrial valves-Flanged iron gate valves
GB/T 12252 General purpose industrial valves--Delivery specification
JB 308 Valves model designation method
JB/T 5300 General purpose valves material
3. Structural Type
3.1 For structural types of check valve, see Figures 1 to 4. Types are established according to JB 308.
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