本标准按照GBT 1.1-2009《标准化工作导则第1部分：标准的结构和编写》给出的规则起草。本标准由国家能源局负责管理，由水电水利规划设计总院提出并负责日常管理，由能源行业水电水力机械标准化技术委员会负责具体技术内容的解释。

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Composition of spherical inlet valve system
5 Technical requirements and warranty
6 Inspection, testing and acceptance
7 Scope of supply, spare parts and special tools
8 Drawings and documents
9 Nameplate, packaging, transportation and storage
Annex A (normative) Factory test of spherical inlet valves
Annex B (reformative) Field test of spherical inlet valves
Annex C (informative) Spare parts and special tools