GB/T 19793-2005 in English

《GB/T 19793-2005农业灌溉设备 水动灌溉阀》由TC201（全国农业机械标准化技术委员会）归口，TC201SC4（全国农业机械标准化技术委员会排灌设备和系统分会）执行，主管部门为中国机械工业联合会
本标准规定了水动灌溉阀的结构、技术要求和试验方法。该水动阀用于水温不超过50℃、水中可含有农业常用类型和浓度的肥料和化学物的浇灌溉系统。本标准适用于公称尺寸大于等于15mm的水动阀。该水动阀的设计工作状态为全开和全闭，但也可以在任意中间状态工作。

Scope

This standard specifies the structure, technical requirements and test methods of hydraulic irrigation valves (hereinafter referred to as hydraulic valves). The hydraulic valve is used in irrigation systems where the water temperature does not exceed 50°C and the water can contain fertilizers and chemicals of commonly used types and concentrations in agriculture. This standard applies to hydraulic valves with a nominal size greater than or equal to 15mm. The designed working state of the hydraulic valve is fully open and fully closed, but it can also work in any intermediate state.