GSO ISO 9635-5:2013
农业灌溉设备灌溉阀门 第5部分：控制阀

Agricultural irrigation equipment -- Irrigation valves -- Part 5: Control valves

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标准号

GSO ISO 9635-5:2013

发布

2013年

发布单位

GSO

当前最新

GSO ISO 9635-5:2013

 

 

适用范围

This part of ISO 9635 specifies construction and performance requirements and test methods for control valves, intended for operation in irrigation systems with water at temperatures not exceeding 60 °C, which can contain fertilizers and other chemicals of the types and concentrations used in agriculture. It is applicable to hydraulically-operated control irrigation valves of DN 15 (1/2 inch) diameter or greater, designed to operate in any position, from fully open to fully closed. The valves can either be directly operated (i.e. the force applied via a spring or diaphragm to the obturator), or pilot-operated (i.e. the force is applied through an adjustable pilot valve via a diaphragm).

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