GSO ISO 9635-4:2013
农业灌溉设备 灌溉阀门 第4部分：空气阀门

Agricultural irrigation equipment -- Irrigation valves -- Part 4: Air valves

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标准号

GSO ISO 9635-4:2013

发布

2013年

发布单位

GSO

当前最新

GSO ISO 9635-4:2013

 

 

适用范围

This part of ISO 9635 specifies construction and performance requirements and test methods for air 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 air irrigation valves of DN 15 (1/2 inch) diameter or greater, designed to be directly operated, i.e. the force is applied to the obturator by the float, either directly or via a mechanical linkage. The valves can be operated by a force applied through an adjustable pilot valve.

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