ICS13.240 CCSJ16DB4403 深圳市地方标准 DB4403/T410—2023 在用安全阀使用管理规则 Managementregulationforsafetyvalvesinservice 2023-12-18发布 2024-01-01实施 深圳市市场监督管理局发布 DB4403/T410—2023 I目  次 前言..................................................................................II 1范围................................................................................1 2规范性引用文件......................................................................1 3术语和定义..........................................................................1 4安全阀的种类........................................................................2 4.1根据作用机理分类................................................................2 4.2根据开启高度分类................................................................2 4.3其他分类........................................................................3 5采购及入库要求......................................................................3 6安装要求............................................................................4 7定期校验............................................................................5 7.1一般要求........................................................................5 7.2安全阀整定压力修正..............................................................5 8维修要求............................................................................5 8.1一般要求........................................................................5 8.2密封面维修......................................................................6 8.3承压件维修......................................................................6 8.4弹簧更换维修....................................................................6 9使用维护要求........................................................................6 10停用要求...........................................................................6 附录A（资料性）常用表格.............................................................8