GB/T 38202-2019
全焊接球阀的安装使用维护方法
Installation f operation f maintenance of fully welded body ball valve
2019-10-18 发布
2020-05-01 实施
目 次
前言.....................................1
1范围....................................1
2规范性引用文件................................1
3术语和定义..................................1
4安装.....................................1
4.1安装前检査.....................................1
4.2安装前单体试压...................................2
4.3球阀安装前的维护保养...............................2
4.4安装过程......................................3
4.5安装后调试.....................................4
5使用........................................
5-1 一般要求....................................
5.2手动球阀的操作.................................
5- 3带执行机构的球阀操作 ..............................7
6维护........................................8
6.1在役球阀的维护.................................8
6-2用户库存球阙的维护...............................10
7检修........................................11
7.1检修的条件..............................11
7.2 球阙内漏..............................11
7.3球阙外漏....................................12
7.4球阙常见故障及处理...............................12
附录A《资料性附录）球阙维护用清洗液、润滑脂、密封脂推荐注入資............13
附录B （资料性附录）球阀及执行机构常见故障及处理方法................14