ISO 9635-4:2006
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ISO 9635-4:2006
41121

Тезис

ISO 9635-4:2006 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.


Общая информация 

  •  : Отозвано
     : 2006-11
  •  : 1
  •  : ISO/TC 23/SC 18 Irrigation and drainage equipment and systems
  •  :
    65.060.35 Irrigation and drainage equipment

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