1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO 6162-1:2012 Hydraulic fluid power Flange connections with split or one-piece flange clamps and metric or inch screws Part 1: Flange connectors, ports and mounting surfa
2、ces for use at pressures of 3,5 MPa (35 bar) to 35 MPa (350 bar), DN 13 to DN 127BS ISO 6162-1:2012 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 6162-1:2012. It supersedes BS ISO 6162-1:2002 which is withdrawn. The UK participation in its preparation was e
3、ntrusted to Technical Committee MCE/18/-/4, Connectors and associated components. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its
4、correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012 ISBN 978 0 580 66845 6 ICS 23.100.40 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy
5、and Strategy Committee on 31 December 2012. Amendments issued since publication Date Text affectedBS ISO 6162-1:2012 ISO 2012 Hydraulic fluid power Flange connections with split or one-piece flange clamps and metric or inch screws Part 1: Flange connectors, ports and mounting surfaces for use at pre
6、ssures of 3,5 MPa (35 bar) to 35 MPa (350 bar), DN 13 to DN 127 Transmissions hydrauliques Raccordements bride avec demi- brides fendue ou bride monobloc et vis mtriques ou en inches Partie 1: Brides, orifices et surfaces de montage pour utilisation des pressions de 3,5 MPa (35 bar) 35 MPa (350 bar)
7、, DN 13 DN 127 INTERNATIONAL STANDARD ISO 6162-1 Second edition 2012-12-15 Reference number ISO 6162-1:2012(E)BS ISO 6162-1:2012ISO 6162-1:2012(E) ii ISO 2012 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2012 All rights reserved. Unless otherwise specified, no part of this publication may be
8、 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 ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 4
9、1 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in SwitzerlandBS ISO 6162-1:2012ISO 6162-1:2012(E) ISO 2012 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope 1 2 Normative references . 1 3 Terms and definitions . 2 4 Material . 2 5 Select
10、ion 3 6 Dimensions and tolerances 4 7 Corrosion protection 4 8 Pressure/temperature requirements 5 9 Marking . 5 10 Designation of flange connections and their parts 5 Annex A (informative) Recommended assembly procedures and screw torque levels for flange connections conforming to ISO 6162-1 .18 An
11、nex B (informative) O-ring designation codes and dimensions .20 Bibliography .21BS ISO 6162-1:2012ISO 6162-1:2012(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Stand
12、ards 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 ta
13、ke 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 i
14、s 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 possibili
15、ty 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 6162-1 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 4, Connectors and similar products and c
16、omponents. This second edition cancels and replaces the first edition (ISO 6162-1:2002), which has been technically revised. It also incorporates the Technical Corrigendum ISO 6162-1:2002/Cor.1:2004. In this second edition, property class 8.8 screws in accordance with ISO 898-1 have been deleted to
17、avoid the potential problem of a user using these screws in an application that requires screws conforming to the requirements of property class 10.9. ISO 6162 consists of the following parts, under the general title Hydraulic fluid power - Flange connections with split or one-piece flange clamps an
18、d metric or inch screws: Part 1: Flange connectors, ports and mounting surfaces for use at pressures of 3,5 MPa (35 bar) to 35 MPa (350 bar), DN 13 to DN 127 Part 2: Flange connectors, ports and mounting surfaces for use at a pressure of 42 MPa (420 bar), DN 13 to DN 76 iv ISO 2012 All rights reserv
19、edBS ISO 6162-1:2012ISO 6162-1:2012(E) Introduction In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure within an enclosed circuit. Components are interconnected through their ports and associated fluid conductor connector ends. ISO 2012 All rights r
20、eserved vBS ISO 6162-1:2012BS ISO 6162-1:2012Hydraulic fluid power Flange connections with split or one- piece flange clamps and metric or inch screws Part 1: Flange connectors, ports and mounting surfaces for use at pressures of 3,5 MPa (35 bar) to 35 MPa (350 bar), DN 13 to DN 127 WARNING Users of
21、 this part of ISO 6162 should ensure that suitable material is chosen for the port to maintain the required working pressure, if carbon steel is not used. In addition, flanged head material and wall thickness depend on the selected working pressure and the d 8diameter. 1 Scope This part of ISO 6162
22、gives general and dimensional specifications for flanged heads, split flange clamps (FCS and FCSM), one-piece flange clamps (FC and FCM), ports and mounting surfaces applicable to four- screw, split and one-piece flange clamp type tube connectors and hose fittings for use at pressures of 3,5 MPa (35
23、 bar 1) ) to 35 MPa (350 bar). It also specifies the dimensions of the seals to be used, as well as the grooves that house the seals. This part of ISO 6162 also recognizes the need to accommodate metric screw fasteners (type 1), as well as to provide a means to use existing inch screw fasteners (typ
24、e 2). These connections are intended for application in hydraulic systems on industrial and commercial products where it is desired to avoid the use of threaded connectors. Surges of pressure higher than the nominal ratings can reduce the ability of the flange connections to retain the hydraulic flu
25、id. This needs to be taken into account in the design of the hydraulic system. 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 ref
26、erenced document (including any amendments) applies. ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD) ISO 261, ISO general-purpose metric screw threads General plan ISO 263, ISO inch screw threads General plan and selection for screws, bol
27、ts and nuts Diameter range 0,06 to 6 in ISO 724, ISO general-purpose metric screw threads Basic dimensions ISO 725, ISO inch screw threads Basic dimensions ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs with specified property class
28、es Coarse thread and fine pitch thread ISO 1302, Geometrical Product Specification Indications of surface texture in technical product documentation ISO 2768-1, General tolerances Part 1: Tolerances for linear and angular dimensions without individual tolerance indications 1) 1 bar = 0,1 MPa = 10 5P
29、a; 1 Pa = 1 N/m 2 . INTERNATIONAL STANDARD ISO 6162-1:2012(E) ISO 2012 All rights reserved 1BS ISO 6162-1:2012ISO 6162-1:2012(E) ISO 3601-1, Fluid power systems O-rings Part 1: Inside diameters, cross-sections, tolerances and designation codes ISO 3601-3, Fluid power systems O-rings Part 3: Quality
30、acceptance criteria ISO 4017, Hexagon head screws Product grades A and B ISO 4762, Hexagon socket head cap screws ISO 5598, Fluid power systems and components Vocabulary ISO 7089, Plain washers Normal series Product grade A ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests ISO 198
31、79, Metallic tube connections for fluid power and general use Test methods for hydraulic fluid power connections ANSI/ASME B18.3, Socket Cap, Shoulder, and Set Screws, Hex and Spline Keys (Inch Series) ASTM A574, Standard Specification for Alloy Steel Socket-Head Cap Screws SAE J429, Mechanical and
32、Material Requirements for Externally Threaded Fasteners 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5598 apply. 4 Material 4.1 Split flange clamps (see Figure 3) and one-piece flange clamps (see Figure 4) shall be ferrous material with the follow
33、ing properties in the finished condition: For nominal flange size DN 13: minimum yield strength: 220 MPa minimum elongation at fracture: 3 % and for all other nominal flange sizes: minimum yield strength: 415 MPa minimum elongation at fracture: 3 %. 4.2 Flanged heads shall be ferrous material with t
34、he following properties in the finished condition: minimum yield strength: 215 MPa minimum elongation at fracture: 10 %. 4.3 Unless otherwise specified, one of the following screw options shall be used: a) hexagon head screws conforming to ISO 4017 of property class 10.9 (minimum) in accordance with
35、 ISO 898-1, or b) socket head screws conforming to ISO 4762 of property class 10.9 (minimum) in accordance with ISO 898-1, or c) inch hexagon head screws conforming to SAE J429 of grade 8 (minimum), or 2 ISO 2012 All rights reservedBS ISO 6162-1:2012ISO 6162-1:2012(E) d) inch socket head screws conf
36、orming to the product specifications of ANSI/ASME B18.3 and made of material conforming to ASTM A574. 4.4 Unless otherwise specified, the O-rings shall be made of NBR (nitrile) with a hardness of (90 5) IRHD, measured in accordance with ISO 48, for use at the pressure and temperature requirements gi
37、ven in Clause 8 and Table 1 or Table 2, and for testing. The O-rings specified in Tables 1 and 2 shall conform to the dimensions given in ISO 3601-1 for the relevant size code, conform to tolerance class A in ISO 3601-1 and shall meet or exceed the O-ring quality acceptance criteria for grade N of I
38、SO 3601-3. If the flange connection is expected to be used at temperatures higher than specified in Clause 8, O-rings made of materials that meet the higher temperature requirements shall be used. NOTE Connectors conforming to this part of ISO 6162 contain elastomeric seals. Unless otherwise specifi
39、ed, connectors are made and delivered with elastomeric seals for use within the specified working temperature range with petroleum base hydraulic fluids. The use of these connectors and elastomeric seals with other hydraulic fluids might result in a reduced working temperature range or might render
40、the connectors unsuitable for the application. Upon request, manufacturers may supply connectors with elastomeric seals which are intended for use with non-petroleum base hydraulic fluid and which meet the specified working temperature range of the connectors. 4.5 The surface pressure between the sc
41、rew head and the flange clamp should be considered. The use of hardened washers is recommended; however, flange connections conforming to previous editions of ISO 6162- 1 might not accommodate the use of this type of washer. Washers, if used, shall conform to ISO 7089 (HV 300) type A and be sized fo
42、r the corresponding screw. Plain washers conforming to ANSI/ASME B18.22.1, type B narrow series HV 300, may be substituted when using type 2 screws; see Tables 1 and 2 for exceptions. 5 Selection 5.1 Ensure that the flange connection needs to conform to ISO 6162-1, taking into account the maximum wo
43、rking pressure and the dimensional differences between ISO 6162-1 and ISO 6162-2. Parts shall not be interchanged between flange connections that conform to ISO 6162-1 and 6162-2. 5.2 For new design, select the flange connector size by the nominal flange size that corresponds to the maximum diameter
44、 of the bore through the flanged head (dimension d 2 ) or the flange pad (dimension d 1 ). 5.3 Match the nominal flange sizes for the clamp, port, and flanged head. 5.4 Select either type 1 (for use with either metric or inch screws) or type 2 (for use with inch screws only), split (FCS or FCSM) or
45、one-piece (FC or FCM) flange clamps and ports, depending on whether metric or inch screw fasteners are required. Type 2 (inch) flange ports and assemblies shall not be used for new designs in hydraulic fluid power. NOTE The selection of the flanged head and O-ring is not affected by the difference i
46、n metric or inch screw fasteners. 5.5 Select screws, O-rings, and washer sizes corresponding to the nominal flange size and from the tables corresponding to type 1 (Table 1) or type 2 (Table 2). 5.6 To match an existing pad, measure the bolt pattern (dimensions l 7and l 10 ), and determine screw typ
47、e to select the proper flanged head and clamp. To avoid interchange between flange connections conforming to ISO 6162-1 and ISO 6162-2, the pattern should be measured with an accuracy of 1 mm or less. 5.7 To match an existing flanged head, measure the diameter (dimension d 10 ) and thickness (dimens
48、ion l 14 ) with an accuracy of 0,5 mm or less. 5.8 Select a one-piece flange clamp (FC or FCM) or a split flange clamp (FCS or FCSM). ISO 2012 All rights reserved 3BS ISO 6162-1:2012ISO 6162-1:2012(E) 6 Dimensions and tolerances 6.1 Dimensions of type 1 flange assemblies, including screws, shall be
49、in accordance with Figure 1 (for split flange clamp) or Figure 2 (for one-piece clamp) and Table 1. Dimensions of type 2 flange assemblies, including screws, shall be in accordance with Figure 1 (for split flange clamp) or Figure 2 (for one-piece clamp) and Table 2. 6.2 Dimensions of split flange clamps shall be in accordance with Figure 3 and Table 3. Dimensions of one-piece flange clamps shall be in accordance with Figure 4 and Table 3. A maximum draft angle of 6 fr
