ISO-1436-2-2005.pdf

Reference number ISO 1436-2:2005(E) © ISO 2005 INTERNATIONAL STANDARD ISO 1436-2 First edition 2005-10-01 Rubber hoses and hose assemblies Wire-braid-reinforced hydraulic types Specification Part 2: Water-based fluid applications Tuyaux et flexibles en caoutchouc Types hydrauliques avec armature de fils métalliques tressés Spécifications Partie 2: Applications pour fluide à base d'eau Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:27:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1436-2:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. © ISO 2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii © ISO 2005 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:27:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1436-2:2005(E) © ISO 2005 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Normative references. 1 3 Classification. 2 4 Materials and construction 2 4.1 Hoses . 2 4.2 Hose assemblies. 2 5 Dimensions 2 5.1 Hose diameters, cover thickness and hose concentricity . 2 5.2 Length 4 6 Performance requirements 4 6.1 General. 4 6.2 Hydrostatic requirements 4 6.3 Minimum bend radius. 5 6.4 Resistance to impulse 6 6.5 Leakage of hose assemblies . 6 6.6 Cold flexibility . 6 6.7 Adhesion between components 6 6.8 Vacuum resistance. 6 6.9 Abrasion resistance 7 6.10 Fluid resistance. 7 6.11 Ozone resistance 7 7 Marking 8 7.1 Hoses . 8 7.2 Hose assemblies. 8 Annex A (normative) Type and routine testing of production hoses . 9 Annex B (informative) Production acceptance testing. 10 Annex C (informative) Recommendations for lengths of supplied hoses and tolerances on lengths of hose assemblies. 11 Bibliography. 12 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:27:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1436-2:2005(E) iv © ISO 2005 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 1436-2 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber and plastics). Together with Part 1 (see below), this part of ISO 1436 cancels and replaces ISO 1436:1991, which has been technically revised. ISO 1436 consists of the following parts, under the general title Rubber hoses and hose assemblies Wire- braid-reinforced hydraulic types Specification: Part 1: Oil-based fluid applications Part 2: Water-based fluid applications Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:27:22 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 1436-2:2005(E) © ISO 2005 All rights reserved 1 Rubber hoses and hose assemblies Wire-braid-reinforced hydraulic types Specification Part 2: Water-based fluid applications 1 Scope This part of ISO 1436 specifies requirements for six types of wire-braid-reinforced hose and hose assembly of nominal size from 5 to 51. 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 40 °C to +60 °C. This part of ISO 1436 does not include requirements for end fittings. It is limited to requirements for the performance of hoses and hose assemblies. NOTE 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. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testing ISO 1436-1, Rubber hoses and hose assemblies Wire-braid-reinforced hydraulic types Specification Part 1: Oil-based fluid applications ISO 1817, Rubber, vulcanized Determination of the effect of liquids ISO 4671, Rubber and plastics hoses and hose assemblies Methods of measurement of dimensions ISO 4672:1997, Rubber and plastics hoses Sub-ambient temperature flexibility tests ISO 6605, Hydraulic fluid power Hoses and hose assemblies Test methods ISO 6803, Rubber or plastics hoses and hose assemblies Hydraulic-pressure impulse test without flexing ISO 6945, Rubber hoses Determination of abrasion resistance of the outer cover ISO 7233, Rubber and plastics hoses and hose assemblies Determination of suction resistance ISO 7326:1991, Rubber and plastics hoses Assessment of ozone resistance under static conditions ISO 8033:1991, Rubber and plastics hose Determination of adhesion between components Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:27:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1436-2:2005(E) 2 © ISO 2005 All rights reserved 3 Classification Six types of hose are specified, distinguished by their construction, working pressure and oil resistance: Type 1ST: hoses with a single braid of wire reinforcement and having a thick cover. Type 2ST: hoses with two braids of wire reinforcement and having a thick cover. Types 1SN and R1AT: hoses with a single braid of wire reinforcement and having a thin cover. Types 2SN and R2AT: hoses with two braids of wire reinforcement and having a thin cover. NOTE Types 1SN and R1AT and types 2SN and R2AT have the same reinforcement dimensions as type 1ST and type 2ST, respectively, except that they have thinner covers designed to assemble with fittings without removal of the cover or a portion of the cover. 4 Materials and construction 4.1 Hoses Hoses shall consist of a rubber lining resistant to water-based hydraulic fluids, one or two layers of high- tensile steel wire and a weather- and oil-resistant rubber cover. 4.2 Hose assemblies Hose assemblies shall be manufactured using hoses conforming to the requirements of this part of ISO 1436. Hose assemblies shall be manufactured only with those hose fittings whose correct functioning has been verified in accordance with Subclauses 6.2, 6.4, 6.5 and 6.6 of this part of ISO 1436. The manufacturer's instructions shall be followed for the preparation and fabrication of hose assemblies. 5 Dimensions 5.1 Hose diameters, cover thickness and hose concentricity When measured in accordance with ISO 4671, the hose diameters and the cover thickness (where appropriate) shall conform to the values given in Table 1. When measured in accordance with ISO 4671, the concentricity of hoses shall conform to the values given in Table 2. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:27:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1436-2:2005(E) © ISO 2005 All rights reserved 3 Table 1 Dimensions of hoses All types Types R1AT, 1SN, 1ST Type 1ST Types 1SN, R1AT Types R2AT, 2SN, 2ST Type 2ST Types 2SN, R2AT Inside diameter mm Diameter over reinforcement mm Outside diameter of hose mm Outside diameter of hose mm Cover thickness mm Diameter over reinforcement mm Outside diameter of hose mm Outside diameter of hose mm Cover thickness mm Nominal size min. max. min. max. min. max. max. min.max. min. max. min. max. max. min. max. 5 6,3 8 10 12,5 16 19 25 31,5 38 51 4,6 6,1 7,7 9,3 12,3 15,5 18,6 25,0 31,4 37,7 50,4 5,4 7,0 8,5 10,1 13,5 16,7 19,8 26,4 33,0 39,3 52,0 8,9 10,6 12,1 14,5 17,5 20,6 24,6 32,5 39,3 45,6 58,7 10,1 11,7 13,3 15,7 19,1 22,2 26,2 34,1 41,7 48,0 61,9 11,9 15,1 16,7 19,0 22,2 25,4 29,4 36,9 44,4 50,8 65,1 13,5 16,7 18,3 20,6 23,8 27,0 31,0 39,3 47,6 54,0 68,3 12,5 14,1 15,7 18,1 21,5 24,7 28,6 36,6 44,8 52,1 65,9 0,8 0,8 0,8 0,8 0,8 0,8 0,8 0,8 1,0 1,3 1,3 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1.5 2,0 2,5 2,5 10,6 12,1 13,7 16,1 19,0 22,2 26,2 34,1 43,2 49,6 62,3 11,7 13,3 14,9 17,3 20,6 23,8 27,8 35,7 45,7 52,0 64,7 15,1 16,7 18,3 20,6 23,8 27,0 31,0 38,5 49,2 55,6 68,2 16,7 18,3 19,9 22,2 25,4 28,6 32,6 40,9 52,4 58,8 71,4 14,1 15,7 17,3 19,7 23,1 26,3 30,2 38,9 49,6 56,0 68,6 0,8 0,8 0,8 0,8 0,8 0,8 0,8 0,8 1,0 1,3 1,3 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 2,0 2,5 2,5 NOTE Nominal sizes correspond to the inside diameters in ISO 4397. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:27:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1436-2:2005(E) 4 © ISO 2005 All rights reserved Table 2 Concentricity of hoses Maximum variation in wall thickness mm Between inside diameter and outside diameter Between inside diameter and reinforcement diameter Nominal size All types Types 1ST, 1SN and R1AT Types 2ST, 2SN and R2AT Up to and including 6,3 0,8 0,4 0,5 Greater than 6,3 and up to and including 19 1,0 0,6 0,7 Greater than 19 1,3 0,8 0,9 5.2 Length The length of supplied hoses and hose assemblies shall be the subject of agreement between the manufacturer and the purchaser. NOTE Recommendations for supplied lengths of hoses and hose assemblies are given in Annex C. 6 Performance requirements 6.1 General The requirements for type and routine testing are given in Annex A and recommendations for production acceptance testing in Annex B. 6.2 Hydrostatic requirements When determined in accordance with ISO 1402 or ISO 6605, the maximum working pressure, the proof pressure and the minimum burst pressure of hoses and hose assemblies shall conform to the values given in Table 3. When determined in accordance with ISO 1402 or ISO 6605, the change in length of hoses at the maximum working pressure shall not exceed +2 % or 4 %. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:27:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1436-2:2005(E) © ISO 2005 All rights reserved 5 Table 3 Maximum working pressure, proof pressure and minimum burst pressure Maximum working pressure bar Proof pressure bar Minimum burst pressure bar Nominal size Types 1ST, 1SN and R1AT Types 2ST, 2SN and R2AT Types 1ST, 1SN and R1AT Types 2ST, 2SN and R2AT Types 1ST, 1SN and R1AT Types 2ST, 2SN and R2AT 5 250 415 500 830 1 000 1 660 6,3 225 400 450 800 900 1 600 8 215 350 430 700 860 1 400 10 180 330 360 660 720 1 320 12,5 160 275 320 550 640 1 100 16 130 250 260 500 520 1 000 19 105 215 210 430 420 860 25 87 165 180 330 360 660 31,5 62 125 130 250 260 500 38 50 90 100 180 200 360 51 40 80 80 160 160 320 NOTE 1 bar = 0,1 MPa 6.3 Minimum bend radius Use a test piece having a length at least four times the minimum bend radius. Measure the hose outside diameter with a calliper in the straight lay position before bending the hose. Bend the hose through 180° to the minimum bend radius (see Table 4) and measure the flatness with the calliper. When bent to the minimum bend radius given in Table 4, measured on the inside of the bend, the flatness shall not exceed 10 % of the original outside diameter. Table 4 Minimum bend radius Nominal size Minimum bend radius mm 5 6,3 8 10 12,5 16 19 25 31,5 38 51 90 100 115 130 180 200 240 300 420 500 630 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 03:27:22 MDTNo reproduction or networking perm