GB/T 37827-2019
城镇供热用焊接球阀
Welded ball valve for urban heating
2019-08-30 发布
2020-07-01 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....................................2
4标记和参数....................................3
5结构.......................................3
6 —般要求....................................6
7要求.......................................9
8试验方法....................................11
9检验规则....................................12
10 标志....................................14
11防护、包装和贮运...............................14
附录A （规范性附录）袖管............................15
附录B （规范性附录）轴向力和弯矩取值......................16
附录C （规范性附录）弯矩试验方法........................19