1、August 2012 Translation by DIN-Sprachendienst.English price group 10No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、 23.040.70; 23.100.40!$k(“1907205www.din.deDDIN ISO 12151-3Connections for hydraulic fluid power and general use Hose fittings Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends(ISO 12151-3:2010),English translation of DIN ISO 12151-3:2012-08Leitungsanschlsse fr Fluidtechnik und allgeme
3、ine Anwendung Schlaucharmaturen Teil 3: Schlaucharmaturen mit Flanschstutzen nach ISO 6162-1 oder ISO 6162-2(ISO 12151-3:2010),Englische bersetzung von DIN ISO 12151-3:2012-08Raccordements pour transmissions hydrauliques et applications gnrales Raccords de flexible Partie 3: Raccords de flexible ave
4、c brides conformes Traduction anglaise de DIN ISO 12151-3:2012-08SupersedesDIN ISO 12151-3:2004-01www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.16lISO 6162-1 ou lISO 6162-2 (ISO 12151-3:2010),07.12 A comma is used as the decimal
5、marker. Contents Page National foreword .3 Introduction .4 1 Scope 5 2 Normative references 6 3 Terms and definitions .6 4 Performance requirements .6 5 Designation of hose fittings .6 6 Design .7 7 Manufacture7 8 Procurement information 8 9 Marking .8 10 Identification statement (reference to this
6、part of ISO 12151) .8 Bibliography . 16 2 DIN ISO 12151-3:2012-08 National foreword This standard has been prepared by Technical Committee ISO/TC 131 “Fluid power systems”, Subcommittee SC 4 Connectors and similar products and components”, Working Group WG 6 “Methods for connecting hose couplings an
7、d tubes to connectors”. The responsible German body involved in its preparation was the Normenausschuss Maschinenbau (Mechanical Engineering Standards Committee), Working Committee NA 060-36-40 AA Rohr- und Schlauch-leitungen sowie Verbindungselemente. Attention is drawn to the possibility that some
8、 of the elements of this document may be the subject of patent rights. DIN and/or DKE shall not be held responsible for identifying any or all such patent rights. The second edition of ISO 12151-3 cancels and replaces the first edition (ISO 12151-3:2004). ISO 12151 consists of the following parts, u
9、nder the general title Connections for hydraulic fluid power and general use Hose fittings: Part 1: Hose fittings with ISO 8434-3 O-ring face seal ends Part 2: Hose fittings with ISO 8434-1 and 8434-4 24 degree cone connector ends with O-rings Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flan
10、ge ends Part 4: Hose fittings with ISO 6149 metric stud ends Part 5: Hose fittings with ISO 8434-2 37 degree flared ends Part 6: Hose fittings with ISO 8434-6 60 degree cone ends Working Committee NA 060-36-40 AA decided to adopt only Part 2 and Part 3 as a national DIN ISO Standard. Where the Inter
11、national Standards referred to are not also DIN EN ISO or DIN ISO Standards with the same number, there are no national standards available. ISO 5598 already includes the German language version. Amendments This standard differs from DIN ISO 12151-3:2004-01 as follows: a) normative references have b
12、een updated, references to ISO 6162 have been replaced by references to the subsequent standards series ISO 6162-1 and ISO 6162-2. Referenced standards are now undated (see Clause 2); b) hose assemblies with intermediate sizes have been introduced for straight flange hose fittings (S) and 45 elbow f
13、lange hose fittings (E45) (see Tables 2 and 3). Previous editions DIN 20078-10: 1982-02 DIN 20078-12: 1982-02 DIN ISO 12151-3: 2004-01 3 DIN ISO 12151-3:2012-08 Introduction In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure within an enclosed circu
14、it. In general applications, the fluid can be conveyed under pressure. Components are connected through their ports by stud ends on fluid conductor connectors to tubes/pipes or to hose fittings and hoses. Connections for hydraulic fluid power and general use Hose fittings Part 3: Hose fittings with
15、ISO 6162-1 or ISO 6162-2 flange ends 4 DIN ISO 12151-3:2012-08 1 Scope This part of ISO 12151 specifies the general and dimensional requirements for the design and performance of flange hose fittings, made of carbon steel, for nominal hose inside diameters of 12,5 mm to 51 mm inclusive, in accordanc
16、e with ISO 4397, for use with ports and clamps in accordance with ISO 6162-1 and ISO 6162-2. NOTE 1 Materials other than carbon steel can be supplied as agreed between the manufacturer and user. NOTE 2 For hose fittings used in hydraulic and pneumatic braking systems on road vehicles (as defined in
17、the scope of ISO/TC 22/SC 2, Road vehicles), see ISO 4038, ISO 4039-1 and ISO 4039-2. These hose fittings (see Figure 1 for a typical example) are for use in hydraulic fluid power systems with hose that meets the requirements of the respective hose standards and in general applications with suitable
18、 hoses. Key 1 hose fitting 2 port, flanged head and clamp per ISO 6162-1 or ISO 6162-2 3 O-ring seal Figure 1 Typical example of hose fitting connection with ISO 6162-1 or ISO 6162-2 flange end 5 DIN ISO 12151-3:2012-08 2 Normative references The following referenced documents are indispensable for
19、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 4397, Fluid power systems and components Connectors and associated components Nominal outside diameter
20、s of tubes and nominal inside diameters of hoses ISO 5598, Fluid power systems and components Vocabulary ISO 6162-1, Hydraulic fluid power Flange connectors with split or one-piece flange clamps and metric or inch screws Part 1: Flange connectors for use at pressures of 3,5 MPa (35 bar) to 35 MPa (3
21、50 bar), DN 13 to DN 127 ISO 6162-2, Hydraulic fluid power Flange connectors with split or one-piece flange clamps and metric or inch screws Part 2: Flange connectors for use at pressures of 35 MPa (350 bar) to 40 MPa (400 bar), DN 13 to DN 51 ISO 6605, Hydraulic fluid power Hoses and hose assemblie
22、s Test methods ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests ISO 19879, Metallic tube connections for fluid power and general use Test methods for hydraulic fluid power connections 3 Terms and definitions For the purposes of this document, the terms and definitions given in IS
23、O 5598 apply. 4 Performance requirements 4.1 Hose assemblies shall meet the performance requirements specified in the appropriate hose specification without leakage or failure. 4.2 The working pressure of the hose assembly shall be the lower of the pressures given for its flange style (pressure seri
24、es) and size in ISO 6162-1 or ISO 6162-2, and in the relevant hose specification. 4.3 The hose-fitting portion of a hose assembly shall be tested in accordance with ISO 19879, and the complete hose assembly shall be tested in accordance with ISO 6605. 5 Designation of hose fittings 5.1 Hose fittings
25、 shall be designated by an alphanumeric code to facilitate ordering. They shall be designated by the words “Hose fitting”, followed by a space, followed by “ISO 12151-3”, followed by a spaced hyphen, then the shape symbol (see 5.2), followed by another spaced hyphen, the style letter L for 2,5 MPa t
26、o 35 MPa (25 bar to 350 bar) flanges or the style letter S for 40 MPa (400 bar) flanges in accordance with ISO 6162-1 or ISO 6162-2, followed by the flange size from ISO 6162-1 or ISO 6162-2, a multiplication symbol () and the hose size (nominal hose inside diameter in accordance with ISO 4397). EXA
27、MPLE A 45 elbow hose fitting, with a medium drop length (E45M) with a 40 MPa (400 bar) flanged head (S) 32 mm nominal flange size and 31,5 nominal ID hose, is designated as follows: Hose fitting ISO 12151-3 - E45M - S32 31,5 5.2 The letter symbols as given in Table 1 shall be used. 6 DIN ISO 12151-3
28、:2012-08 Table 1 Letter symbols used in the designation of hose fittings Connection end type Symbol 2,5 MPa to 35 MPa (25 bar to 350 bar) L Style 40 MPa (400 bar) S Straight S 45 elbow, short E45S 45 elbow, medium E45M 90 elbow, short ES Shape 90 elbow, medium EM 22,5 elbow, medium E22M 30 elbow, sh
29、ort E30S 30 elbow, medium E30M 60 elbow, short E60S 60 elbow, medium E60M 67,5 elbow, short E67S Deprecated fitting angles 67,5 elbow, medium E67M 6 Design 6.1 Hose fitting dimensions shown in Figures 2 to 8 shall conform to those given in Tables 2 to 8 and to the relevant dimensions in ISO 6162-1 o
30、r ISO 6162-2. 6.2 Angular tolerances on axes of ends of elbows shall be 3 for all sizes. 6.3 Details of contour shall be as chosen by the manufacturer, provided that the dimensions given in Tables 2 to 8 are maintained. 7 Manufacture 7.1 Construction Hose fittings may be made by forging or cold form
31、ing, machined from barstock or manufactured from multiple components. 7.2 Workmanship Workmanship shall conform to the best commercial practice to produce high quality hose fittings. Hose fittings shall be free from visual contaminants, all hanging burrs, loose scale and slivers that can be dislodge
32、d in use, and any other defects that can affect the functioning of the parts. All machined surfaces shall have a surface roughness value of Ra u 6,3 m, except where otherwise specified. 7.3 Finish The external surface and threads of all carbon steel parts shall be plated or coated with a suitable ma
33、terial that passes a 72 h neutral salt spray test in accordance with ISO 9227, unless otherwise agreed upon by the 7 DIN ISO 12151-3:2012-08 manufacturer and the user. Any appearance of red rust during the salt spray test on any area, except those noted below, shall be considered failure: all intern
34、al fluid passages; edges, such as hex points, serrations and crests of threads, where there can be mechanical deformation of the plating or coating typical of mass-produced parts or shipping effects; areas where there is mechanical deformation of the plating or coating caused by crimping, flaring, b
35、ending and other post-plate metal forming operations; areas where the parts are suspended or affixed in the test chamber where condensate can accumulate. Internal fluid passages shall be protected from corrosion during storage. NOTE Cadmium plating is deprecated due to environmental concerns. Change
36、s in plating can affect assembly torques and require requalification, when applicable. 7.4 Fitting protection By a method agreed between the supplier and purchaser, the face of the flange hose fittings shall be protected by the manufacturer from nicks and scratches that can be detrimental to the fun
37、ctioning of the hose fitting. Passages shall be securely covered to prevent the entrance of dirt or other contaminants. Covers that contribute to contamination shall not be used. 8 Procurement information The following minimum information should be supplied by the purchaser when making an inquiry or
38、 placing an order: description of hose fitting using designation in accordance with Clause 5; material of hose fitting if other than carbon steel; hose type and size; fluid being conveyed; working pressure; working temperature (ambient and of the fluid). 9 Marking Hose fittings shall be permanently
39、marked with the manufacturers name or trademark. 10 Identification statement (reference to this part of ISO 12151) It is strongly recommended to manufacturers who have chosen to conform to this part of ISO 12151 that the following statement be used in test reports, catalogues and sales literature: “
40、Flange hose fittings conform to ISO 12151-3, Connections for hydraulic fluid power and general use Hose fittings Part 3: Hose fittings with ISO 6162-1 or ISO 6162-2 flange ends.” 8 DIN ISO 12151-3:2012-08 NOTE 1 Connection details and O-rings in accordance with ISO 6162-1 or ISO 6162-2. NOTE 2 Metho
41、d of attachment of hose fitting to hose is optional. Figure 2 Straight flange hose fittings (S) Table 2 Dimensions of straight flange hose fittings (S) Dimensions in millimetres d10,25 Hose fitting size S-L S-S Nominal flange size Nominal hose inside diameterd2d3a min. L1bmax. 13 12,5 30,2 31,8 13 1
42、2,5 8 100 19 12,5 38,1 41,3 19 12,5 8 120 19 19 38,1 41,3 19 19 14 140 25 19 44,45 47,6 25 19 14 150 25 25 44,45 47,6 25 25 19 150 32 25 50,8 54 32 25 19 163 32 31,5 50,8 54 32 31,5 25 175 38 31,5 60,35 63,5 38 31,5 25 182 38 38 60,35 63,5 38 38 31 200 51 38 71,4 79,4 51 38 31 220 51 51 71,4 79,4 51
43、 51 42 240 aMinimum diameter at any point through the hose fitting prior to assembly to the hose. The diameter after assembly shall not be less than 0,9d3. bDimension L1is measured after assembly. 9 DIN ISO 12151-3:2012-08 NOTE 1 Connection details and O-rings in accordance with ISO 6162-1 or ISO 61
44、62-2. NOTE 2 Method of attachment of hose fitting to hose is optional. Figure 3 45 elbow flange hose fittings (E45) Table 3 Dimensions of 45 elbow flange hose fittings (E45) Dimensions in millimetres d10,25 L23 Hose fitting size E45S-L E45M-L E45S-S E45M-S Nominal flange size Nominal hose inside dia
45、meterd2d3amin. E45S-LcE45S-ScE45M-L E45M-S L3bmax. 13 12,5 30,2 31,8 13 12,5 8 19 105 19 12,5 38,1 41,3 19 12,5 8 26 125 19 19 38,1 41,3 19 19 14 26 145 25 19 44,45 47,6 25 19 14 32 175 25 25 44,45 47,6 25 25 19 28c32 175 32 25 50,8 54 32 25 19 32c38 188 32 31,5 50,8 54 32 31,5 25 32c38 200 38 31,5
46、60,35 63,5 38 31,5 25 38c44 222 38 38 60,35 63,5 38 38 31 38c44 240 51 38 71,4 79,4 51 38 31 52c56 270 51 51 71,4 79,4 51 51 42 52c56 290 aMinimum diameter at any point through the hose fitting prior to bending and/or assembly to the hose. The diameter after bending and/or assembly shall not be less
47、 than 0,9d3. bDimension L3is measured after assembly. cShort-drop (E45S-L and E45S-S) hose fittings might not be manufactured by preferred methods with ratings suitable for use with high-pressure spiral-wire hose, which is typically used at working pressures of 28 MPa (280 bar), 21 MPa (210 bar), 17
48、,5 MPa (175 bar) or 14 MPa (140 bar) and higher in hose sizes 25, 31,5, 38 and 51, respectively. Use preferred medium-drop (E45M-L or E45M-S) hose fittings or consult manufacturer for availability. 10 DIN ISO 12151-3:2012-08 NOTE 1 Connection details and O-rings in accordance with ISO 6162-1 or ISO 6162-2. NOTE 2 Method of attachment of hose fitting to hose is optional. Figure 4 90 elbow flange
