ICS号： 中国标准文献分类号 ： 团 体 标 准 发 布 实 施 发 布 ⡟⢋䓝䄲䇻㛋䊣㦶䊻㩰⼄㬱㬱⧂チⰞ⹽㏎㈷⭨エ᷍⭨エ⼦7&  3 767,& ⫔㋻㈗㈓䅕㬞䐚⿹Ⳉ ODUJHGLDPHWHUVLOHQWFKHFNYDOYH   㩰⼄㬱ネ䂊ネ⥃㦰䐅㾎。 全国团体标准信息平台 I目次 前  言.....................................................................................................................................................III 1范围.........................................................................................................................................................1 2规范性引用文件.....................................................................................................................................1 3术语和定义.............................................................................................................................................1 4总体要求.................................................................................................................................................2 4.1标记.............................................................................................................................................2 4.2结构型式.....................................................................................................................................2 4.3连接尺寸.....................................................................................................................................4 4.4材料.............................................................................................................................................4 5要求.........................................................................................................................................................4 5.1涂装和外观.................................................................................................................................4 5.2最小壁厚.....................................................................................................................................5 5.3壳体强度.....................................................................................................................................6 5.4密封性.........................................................................................................................................6 5.5最小开启压力.............................................................................................................................7 5.6最小全开流速.............................................................................................................................7 5.7速闭时间.....................................................................................................................................7 5.8流阻系数.....................................................................................................................................7 5.9关闭行程.....................................................................................................................................7 5.10动作性能.....................................................................................................................................7 5.11金相.............................................................................................................................................7 5.12卫生.............................................................................................................................................7 6试验方法.................................................................................................................................................7 6.1涂装和外观.................................................................................................................................7 6.2最小壁厚.................