BS ISO 9635-4-2006 农业灌溉设备.灌溉阀.空气阀

标准号：BS ISO 9635-4-2006
中文标准名称：农业灌溉设备.灌溉阀.空气阀
英文标准名称：Agricultural irrigation equipment - Irrigation valves - Air valves
标准类型：B91;J16
发布日期：2007/2/28 12:00:00
实施日期：2007/2/28 12:00:00
中国标准分类号：B91;J16
国际标准分类号：65.060.35
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.