7.1 范围 Scope

7.2 定义 Definitions

7.3 分类 Classification

7.4 尺寸特征 Dimesional characteristics

7.5 水力特性 Hydraulic characteristics

7.6 WC 冲洗阀常压管断流器的原理和验证 Principle and verification of atmospheric pipe interrupters of WC flushing valves

7.7 机械耐力 Mechanical endurance

7.8 声学特性 Acoustic characteristics