1、 ISO 2015Rubber hoses and hose assemblies Textile-reinforced hydraulic types for oil-based or water-based fluids SpecificationTuyaux et flexibles en caoutchouc Types hydrauliques avec armature de textile pour fluides base dhuile ou base deau SpcificationsINTERNATIONAL STANDARDISO4079Fourth edition20
2、15-11-01Reference numberISO 4079:2015(E)ISO 4079:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, elec
3、tronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernie
4、r, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO 4079:2015(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 24 Classification 25 Materials and construction . 25.1 Hoses . 25.2 Hose assemblies . 26 Dimensions . 26.1 Hose diameters
5、and hose concentricity 26.2 Length . 47 Performance requirements . 47.1 General . 47.2 Hydrostatic requirements . 47.3 Minimum bend radius 57.4 Resistance to impulse 67.4.1 Water-based fluids . 67.4.2 Oil-based fluids 67.4.3 Optional impulse test . 77.5 Leakage of hose assemblies . 77.6 Cold flexibi
6、lity 77.7 Adhesion between components . 77.8 Vacuum resistance . 87.9 Fluid resistance 87.9.1 Test pieces . 87.9.2 Oil resistance . 87.9.3 Water resistance . 87.10 Ozone resistance 87.11 Visual examination 98 Marking 98.1 Hoses . 98.2 Hose assemblies . 9Annex A (normative) Type and routine testing o
7、f production hoses 10Annex B (informative) Periodic testing of production hose 11Annex C (informative) Recommendations for lengths of supplied hoses and tolerances on lengths of hose assemblies 12 ISO 2015 All rights reserved iiiContents PageISO 4079:2015(E)ForewordISO (the International Organizatio
8、n 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
9、 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.The pr
10、ocedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the edito
11、rial rules of the ISO/IEC Directives, Part 2. www.iso.org/directivesAttention 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. Details of any patent rights iden
12、tified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received. www.iso.org/patentsAny trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the
13、 meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC
14、 45, Rubber and rubber products, Subcommittee SC 1, Rubber and plastics hoses and hose assemblies.This fourth edition cancels and replaces the third edition (ISO 4079:2009), of which it constitutes a minor revision.iv ISO 2015 All rights reservedINTERNATIONAL STANDARD ISO 4079:2015(E)Rubber hoses an
15、d hose assemblies Textile-reinforced hydraulic types for oil-based or water-based fluids Specification1 ScopeThis International Standard specifies requirements for five types of textile-reinforced hydraulic hose and hose assembly of nominal size from 5 to 100. They are suitable for use with water-ba
16、sed hydraulic fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from 40 C to +60 C or 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
17、fittings. It is limited to requirements for hoses and hose assemblies.NOTE It is the responsibility of the user, in consultation with the hose manufacturer, to establish compatibility of the hose with the fluid to be used.2 Normative referencesThe following documents, in whole or in part, are normat
18、ively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 1307, Rubber and plastics hoses Hose sizes, minimum and maxi
19、mum inside diameters, and tolerances on cut-to-length hosesISO 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testingISO 1817, Rubber, vulcanized or thermoplastic Determination of the effect of liquidsISO 4671, Rubber and plastics hoses and hose assemblies Methods of measurement of
20、the dimensions of hoses and the lengths of hose assembliesISO 6605, Hydraulic fluid power Hoses and hose assemblies Test methodsISO 6743-4, Lubricants, industrial oils and related products (class L) Classification Part 4: Family H (Hydraulic systems)ISO 6803, Rubber or plastics hoses and hose assemb
21、lies Hydraulic-pressure impulse test without flexingISO 7233, Rubber and plastics hoses and hose assemblies Determination of resistance to vacuumISO 7326:2006, Rubber and plastics hoses Assessment of ozone resistance under static conditionsISO 8033:2006, Rubber and plastics hoses Determination of ad
22、hesion between componentsISO 8330, Rubber and plastics hoses and hose assemblies VocabularyISO 10619-1, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 1: Bending tests at ambient temperatureISO 10619-2:2011, Rubber and plastics hoses and tubing Measurement of flex
23、ibility and stiffness Part 2: Bending tests at sub-ambient temperatures ISO 2015 All rights reserved 1ISO 4079:2015(E)3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8330 apply.4 ClassificationFive types of hose are specified, distinguished by their c
24、onstruction, working pressure and minimum bend radius: Type 1TE: hoses with a single braid of textile reinforcement. Type 2TE: hoses with one or more braid(s) of textile reinforcement. Type 3TE: hoses with one or more braid(s) of textile reinforcement (higher working pressure). Type R3: hoses with t
25、wo braids of textile reinforcement. Type R6: hoses with a single braid of textile reinforcement.NOTE Type 1TE is not subjected to the impulse or vacuum resistance tests. Type R3 is not subjected to the vacuum resistance test. Type R6 is not subjected to the impulse or vacuum resistance tests.5 Mater
26、ials and construction5.1 HosesHoses shall consist of a rubber lining that is resistant to water- and oil-based hydraulic fluids, one or more layers of suitable textile yarn and a weather- and oil-resistant rubber cover.Hoses shall be designed to enable end fittings to be assembled without removal of
27、 the cover.5.2 Hose assembliesHose assemblies shall be manufactured only with those hose fittings whose functionality has been verified in accordance with 7.2, 7.4, 7.5 and 7.6. The manufacturers instructions shall be followed for the preparation and fabrication of hose assemblies.6 Dimensions6.1 Ho
28、se diameters and hose concentricityWhen measured in accordance with ISO 4671, the inside and outside diameters of hoses 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 2.2 ISO 2015 All right
29、s reservedISO 4079:2015(E)Table1 Dimensions of hosesNominalsizeaInsidediametermmOutsidediametermmTypes1TE, 2TE, 3TEbTypeR6TypeR3Type1TEType2TEType3TETypeR6TypeR3min.max.min.max.min.max.min.max.min.max.min.max.min.max.min.max.56,381012,516 192531,538 51 60 801004,45,97,49,012,115,318,224,630,837,149,
30、858,878,898,65,26,98,410,013,316,519,826,232,839,151,861,281,2101,44,25,67,28,711,915,118,3 5,47,28,810,313,516,719,9 4,56,17,69,212,415,618,725,131,4 5,47,08,510,113,516,719,826,232,9 10,011,613,114,717,721,9 11,613,214,716,319,723,9 11,012,614,115,718,722,926,032,9 12,614,215,717,320,724,928,035,9
31、 12,013,616,117,720,724,928,034,440,847,660,370,091,5113,513,615,217,719,322,726,930,037,443,851,664,374,096,5118,510,311,913,515,119,022,225,4 11,913,515,116,720,623,827,8 11,913,516,718,323,026,231,036,942,9 13,515,118,319,824,627,832,539,346,0 aThe nominal sizes correspond to those given in ISO13
32、07.bInside dimensions apply to type3TE only for nominal sizes larger than 25. ISO 2015 All rights reserved 3ISO 4079:2015(E)Table 2 Concentricity of hosesNominal sizeMaximum variation in wall thickness between inter-nal diameter and outside diametermmUp to and including 6,3 0,8Greater than 6,3 and u
33、p to and including 19 1,0Greater than 19 1,36.2 LengthThe 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.7 Performance requirements7.
34、1 GeneralThe requirements for type and routine testing are given in Annex A and recommendations for periodic testing in Annex B.7.2 Hydrostatic requirementsWhen tested in accordance with ISO 1402 or ISO 6605 at the relevant proof pressure given in Table 3 and the relevant minimum burst pressure give
35、n in Table 4, the hoses and hose assemblies shall not leak.When determined in accordance with ISO 1402 or ISO 6605, the change in length of hoses at the maximum working pressure (see Table 5) shall not exceed +2 % or 4 % for hoses up to and including nominal size 31,5 and +5 % or 0 % for hoses above
36、 nominal size 31,5.Table 3 Proof pressureNominal sizeType 1TE Type 2TE Type 3TE Type R6 Type R3MPa (bar) MPa (bar) MPa (bar) MPa (bar) MPa (bar)56,381012,516192531,5385160801005,0 (50)5,0 (50)4,0 (40)4,0 (40)3,2 (32)3,2 (32)16,0 (160)15,0 (150)13,6 (136)12,6 (126)11,6 (116)10,0 (100)9,0 (90)8,0 (80)
37、32,0 (320)29,0 (290)26,0 (260)22,0 (220)18,6 (186)16,0 (160)14,0 (140)11,0 (110)9,0 (90)8,0 (80)6,6 (66)5,0 (50)3,6 (36)2,0 (20)7,0 (70)6,0 (60)6,0 (60)6,0 (60)6,0 (60)5,2 (52)4,4 (44)21,0 (210)17,6 (176)16,8 (168)15,6 (156)14,0 (140)12,2 (122)10,4 (104)7, 8 (78)5,2 (52)4 ISO 2015 All rights reserve
38、dISO 4079:2015(E)Table 4 Minimum burst pressureNominal sizeType 1TE Type 2TE Type 3TE Type R6 Type R3MPa (bar) MPa (bar) MPa (bar) MPa (bar) MPa (bar)56,381012,516192531,53851608010010,0 (100)10,0 (100)8,0 (80)8,0 (80)6,4 (64)6,4 (64)32,0 (320)30,0 (300)27,2 (272)25,2 (252)23,2 (232)20,0 (200)18,0 (
39、180)16,0 (160)64,0 (640)58,0 (580)52,0 (520)44,0 (440)37,2 (372)32,0 (320)28,0 (280)22,0 (220)18,0 (180)16,0 (160)13,2 (132)10,0 (100)7, 2 (72)4,0 (40)14,0 (140)12,0 (120)12,0 (120)12,0 (120)12,0 (120)10,4 (104)8,8 (88)42,0 (420)35,2 (352)33,6 (336)31,2 (312)28,0 (280)24,4 (244)20,8 (208)15,6 (156)1
40、0,4 (104)Table 5 Maximum working pressureNominal sizeType 1TE Type 2TE Type 3TE Type R6 Type R3MPa (bar) MPa (bar) MPa (bar) MPa (bar) MPa (bar)56,381012,516192531,5385160801002,5 (25)2,5 (25)2,0 (20)2,0 (20)1,6 (16)1,6 (16)8,0 (80)7, 5 (75)6,8 (68)6,3 (63)5,8 (58)5,0 (50)4,5 (45)4,0 (40)16,0 (160)1
41、4,5 (145)13,0 (130)11,0 (110)9,3 (93)8,0 (80)7,0 (70)5,5 (55)4,5 (45)4,0 (40)3,3 (33)2,5 (25)1,8 (18)1,0 (10)3,5 (35)3,0 (30)3,0 (30)3,0 (30)3,0 (30)2,6 (26)2,2 (22)10,5 (105)8,8 (88)8,4 (84)7, 8 (78)7,0 (70)6,1 (61)5,2 (52)3,9 (39)2,6 (26)7.3 Minimum bend radiusUse test pieces having a length at le
42、ast four times the minimum bend radius. Measure the hose outside diameter with callipers in the straight-lay position before bending the hose. Bend the hose through 180 to the minimum bend radius and measure the flatness with the callipers according to ISO 10619-1 method.When the hose is bent to the
43、 minimum bend radius given in Table 6, measured on the inside of the bend, the flatness shall not exceed 10 % of the original outside diameter. ISO 2015 All rights reserved 5ISO 4079:2015(E)Table 6 Minimum bend radiusNominal sizeMinimum bend radiusmmType 1TE Type 2TE Type 3TE Type R6 Type R356,38101
44、2,516192531,538516080100354565759011525405060709011015040455570851051301501902403004005006005065757510012515075751001001251401502052507.4 Resistance to impulse7.4.1 Water-based fluidsThe impulse test shall be performed on hose types 2TE, 3TE and R3 in accordance with ISO 6803 or ISO 6605. The test f
45、luid temperature shall be 60 C. The test fluid shall be selected from HFC, HFAE, HFAS, and HFB as defined in ISO 6743-4.NOTE The impulse test is not required for types 1TE and R6.For type 2TE hoses, when tested at an impulse pressure equal to 125 % of the maximum working pressure, the hose shall wit
46、hstand a minimum of 100 000 impulse cycles.For type 3TE and R3 hoses, when tested at an impulse pressure equal to 133 % of the maximum working pressure for hoses of nominal bore up to and including 25 or at 100 % of the maximum working pressure for hoses of nominal bore greater than 25, the hose sha
47、ll withstand a minimum of 200 000 impulse cycles.There shall be no leakage or other evidence of failure before reaching the specified number of cycles.This test shall be considered a destructive test and the test piece shall be discarded after the test.7.4.2 Oil-based fluidsThe impulse test shall be
48、 performed on hose types 2TE, 3TE and R3 in accordance with ISO 6803 or ISO 6605, using oil-based hydraulic fluid as required by ISO 6803 or ISO 6605 at a fluid temperature of 100 C.NOTE The impulse test is not required for types 1TE and R6.For type 2TE hoses, when tested at an impulse pressure equal to 125 % of the maximum working pressure, the hose shall withstand a minimum of 100 000 impulse cycles.6 ISO 2015 All rights reservedISO 4079:2015(E)For type 3TE and R3 hoses, when tested at an impulse pressure equal to 133 % of the maximum working pres
