DIN EN ISO 3949 Plastics hoses and hose assemblies - Textile-reinforced types for hydraulic applications - Specification (ISO 3949:2009); German version EN ISO 3949:2014
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- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
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Deutsches Institut fur Normung e. V.
Plastics hoses and hose assemblies - Textile-reinforced types for hydraulic applications - Specification (ISO 3949:2009); German version :2014
N EN ISO 3949
Annotation
This International Standard specifies requirements for three types of textile-reinforced thermoplastics hose and hose assembly of nominal size from 3,2 to 25. Each type is divided into two classes dependent on electrical conductivity requirements. They are suitable for use with water-based hydraulic fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from 0 °C to +60 °C and oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from 40 °C to +100 °C;
This International Standard does not include requirements for end fittings. It is limited to the performance of hoses and hose assemblies.
NOTE Operating temperatures in excess of 100 °C may materially reduce the life of the hose.
Автоматический перевод:
Пластмассовые шланги и пластмассовые шлангопроводы - Текстильные усиленные типы для гидравлических приложений - спецификации (ИЗО 3949:2009)
Этот Международный стандарт определяет требования для трех типов укрепленных тканью термопластов шланговое и шланговое соединение номинального размера от 3,2 до 25. Каждый тип разделен на два класса, зависящие от электрических требований проводимости. Они подходят для использования с основанными на воде гидравлическими жидкостями HFC, HFAE, HFAS и HFB, как определено в ISO 6743-4 при температурах в пределах от 0 °C к +60 °C и основанным на нефти гидравлическим жидкостям HH, HL, HM, HR и HV, как определено в ISO 6743-4 при температурах в пределах от 40 °C к +100 °C;



