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sklademVydáno: 2014
ISO 9635-4:2014-Agricultural irrigation equipment-Irrigation valves

ISO 9635-4:2014

ISO 9635-4:2014-Agricultural irrigation equipment-Irrigation valves

Formát
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2890 Kč
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2890 Kč
Označení normy:ISO 9635-4:2014
Počet stran:14
Vydání:2
Vydáno:2014
Jazyk:Anglicky
Popis

ISO 9635-4:2014


ISO 9635-4:2014 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 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.