BS EN ISO 3949:2020
$102.76
Plastics hoses and hose assemblies. Textile-reinforced types for hydraulic applications. Specification
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 20 |
This document specifies requirements for three types of textile-reinforced thermoplastics hoses and hose assemblies 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:
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oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from ?40 °C to +93 °C;
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water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from 0 °C to +60 °C
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water at temperatures ranging from 0 °C to +60 °C.
This document does not include any requirements for end fittings. It is limited to the performance of hoses and hose assemblies.
It is the responsibility of the user, in consultation with the hose manufacturer, to establish the compatibility of the hose with the fluid to be used.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references |
| 8 | 3 Terms and definitions 4 Classification 5 Materials and construction 5.1 Hoses 5.2 Hose assemblies 6 Dimensions and tolerances 6.1 Diameters |
| 9 | 6.2 Concentricity 7 Physical properties 7.1 Hydrostatic requirements |
| 10 | 7.2 Change in length |
| 11 | 7.3 Minimum bend radius 7.4 Resistance to impulse 7.5 Leakage of hose assemblies |
| 12 | 7.6 Cold flexibility 7.7 Ozone resistance 7.8 Electrical conductivity 7.9 Fluid resistance 7.9.1 Test pieces 7.9.2 Oil resistance 7.9.3 Water-based fluid resistance 7.9.4 Water resistance 7.10 Visual examination 8 Frequency of testing |
| 13 | 9 Designation 10 Marking 10.1 Hoses 10.2 Hose assemblies 11 Recommendations for packing and storage 12 Recommendations for length of supplied hoses and tolerances on lengths of hose assemblies |
| 14 | 13 Test certificate |
| 15 | Annex A (normative) Type and routine testing of hoses |
| 16 | Annex B (informative) Production testing |
| 17 | Annex C (informative) Recommendations for lengths of supplied hoses and tolerances on lengths of hose assemblies |
| 18 | Annex D (normative) Test method for electrical conductivity |
| 19 | Bibliography |
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BS EN ISO 3949:2020 2021
Plastics hoses and hose assemblies. Textile-reinforced types for hydraulic applications. Specification Published By Publication Date…
