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1、INTERNATIONAL STANDARD ISO 6162-1 First edition 2002-12-01 Reference number ISO 6162-1:2002(E) ISO 2002 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 (350 bar), DN 1
2、3 to DN 127 Transmissions hydrauliques Raccordements bride avec demi-brides ou bride monobloc et vis mtriques ou en inches Partie 1: Raccordements bride pour utilisation des pressions de 3,5 MPa (35 bar) 35 MPa (350 bar), DN 13 DN 127 ISO 6162-1:2002(E) ii ISO 2002 All rights reserved PDF disclaimer
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5、e; 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 2002 All rights
6、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 ISOs member body in the country of the re
7、quester. 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.ch Web www.iso.ch Printed in Switzerland -,-,- ISO 6162-1:2002(E) ISO 2002 All rights reserved iii Contents Page 1Scope . 1 2Normative references . 1 3Terms and definition
8、s 2 4Material . 2 5General specifications 3 6Dimensions . 3 7Tolerances 3 8Finish 3 9Pressure/temperature requirements . 4 10Marking . 4 11Designation of flange connections and their parts . 4 12Identification statement (Reference to this part of ISO 6162) . 5 Annexes AEquivalent SAE O-rings 16 BEqu
9、ivalent inch screw strengths 17 Bibliography. 18 -,-,- ISO 6162-1:2002(E) iv ISO 2002 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 nor
10、mally 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
11、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 3. Draft International Standards adopted by the techn
12、ical 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 part of ISO 6162 may be the subject of patent right
13、s. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 6162-1 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 4, Connectors and similar products and components. This first edition of ISO 6162-1 together with
14、 the first edition of ISO 6162-2 cancel and replace the first edition of ISO 6162:1994, which has been technically revised. ISO 6162 consists of the following parts, under the general title Hydraulic fluid power Flange connectors with split or one-piece flange clamps and metric or inch screws: Part
15、1: Flange connectors for use at pressures of 3,5 MPa (35 bar) to 35 MPa (350 bar), DN 13 to DN 127 Part 2: Flange connectors for use at pressures of 35 MPa (350 bar) to 40 MPa (400 bar), DN 13 to DN 51 Annexes A and B of this part of ISO 6162 are for information only. ISO 6162-1:2002(E) ISO 2002 All
16、 rights reserved v 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. -,-,- INTERNATIONAL STANDARDISO 6162-1:20
17、02(E) ISO 2002 All rights reserved 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 (350 bar), DN 13 to DN 127 WARNING Users of this part of ISO 6162 shall ensure tha
18、t suitable material is chosen for the port to maintain the required working pressure, if carbon steel is not used. Also, the tube material and wall thickness depend on the selected working pressure and tube diameter. Tube dimensions shall be calculated in accordance with ISO 10763. 1Scope This part
19、of ISO 6162 specifies complete general and dimensional characteristics for flange heads, split flange clamps (FCS), one-piece flange clamps (FC) and ports applicable to four-screw, split and one-piece flange clamp type tube and hose connectors for use at pressures of ( 1) to (). It also specifies th
20、e dimensions of the seals to be used, as well as the grooves to house the seal. This part of ISO 6162 also recognizes the need to accommodate metric (type 1) screw fasteners, as well as to provide a means to use existing inch (type 2) screw fasteners. These connectors are intended for application in
21、 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 will reduce the ability of the flange connectors to retain the hydraulic fluid. This shall be taken into account in the design of
22、the hydraulic system. 2Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 6162. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, pa
23、rties to agreements based on this part of ISO 6162 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain
24、registers of currently valid International Standards. 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, bo
25、lts and nuts Diameter range 0.06 to 6 in ISO 273, Fasteners Clearance holes for bolts and screws 1); . 3,5 MPa 35 bar35 MPa 350 bar 1 bar=0,1 MPa=105Pa 1 Pa=1 N/m2 ISO 6162-1:2002(E) 2 ISO 2002 All rights reserved ISO 724, ISO general-purpose metric screw threads Basic dimensions ISO 898-1, Mechanic
26、al properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs ISO 2768-1, General tolerances Part 1: Tolerances for linear and angular dimensions without individual tolerance indications ISO 3601-1, Fluid power systems O-rings Part 1: Inside diameters, cross-section
27、s, tolerances and size identification code ISO 3601-3, Fluid power systems O-rings Part 3: Quality acceptance criteria ISO 5598, Fluid power systems and components Vocabulary ISO 8434-5, Metallic tube connections for fluid power and general use Part 5: Test methods for threaded hydraulic fluid power
28、 connections ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests ISO 10763, Hydraulic fluid power Plain-end, seamless and welded precision steel tubes Dimensions and nominal working pressures ASME/B1.1, Unified Inch Screw Threads (UN and UNR Thread Form) 3Terms and definitions For t
29、he purposes of this part of ISO 6162, the terms and definitions given in ISO 5598 apply. 4Material 4.1Split flange clamp halves (see Figure 3) and one-piece flange clamps (see Figure 4) shall be made from ferrous material with the following properties: For nominal flange size 13: minimum yield stren
30、gth: ; minimum elongation at fracture: ; and for all other nominal flange sizes: minimum yield strength: ; minimum elongation at fracture: . 4.2 Use flange heads made from ferrous material with: minimum yield strength: ; minimum elongation at fracture: . 4.3 Use hex head metric screws of property cl
31、ass 8.8 or 10.9, as specified in ISO 898-1, or equivalent inch screws (see annex B). 4.4 Unless otherwise specified, the O-rings shall be made of NBR (nitrile) with a hardness of () IRHD, measured in accordance with ISO 48, for use at the pressure and temperature requirements given in clause 9 and T
32、able 1 or Table 2, and for testing. The O-rings shall conform to the dimensions given in Table 4 and shall meet or exceed the O-ring quality acceptance criteria for grade N of ISO 3601-3. NOTEFor higher temperatures, use sealing materials that meet the higher requirements. 221 N/mm2 3 % 414 N/mm2 3
33、% 215 N/mm2 10 % 905 ISO 6162-1:2002(E) ISO 2002 All rights reserved 3 5General specifications 5.1 Select from Tables 1 or 2 and Table 3 either type 1 (metric) or type 2 (inch), split (FCS) or one-piece (FC) flange clamps and ports, depending on whether metric or inch screw fasteners are required. 5
34、.2 Use hexagon head screws, unless otherwise specified. Table 1 lists pressures and torques when property class 8.8 (in accordance with ISO 898-1) screws are chosen. These screws should be used for severe vibration applications, e.g. for rigid piping. Table 2 lists pressures and torques when propert
35、y class 10.9 (in accordance with ISO 898-1) screws are chosen. In this case, the surface pressure on the screw head and between flange clamp and flange head shall be considered. Hardened flat washers may be used. 5.3 If socket head cap screws are necessary and screws of property classes 8.8 or 10.9
36、are not available, use screws of property class 12.9 in accordance with ISO 898-1 (see annex B for equivalent inch screws). 6Dimensions The following specifications supplement the dimensional data contained in Tables 1 to 4 with respect to all unspecified details. a)Select the nominal matching flang
37、e size clamp for the matching port size from Figures 3 to 5 and Table 3. b)Select the size for flange heads, shown in Figure 6 and Table 4, in accordance with the size selected for the flange clamps and ports. NOTEThe flange head selection is not affected by the difference in metric or inch screw fa
38、steners. c)Use O-ring seals (see Figure 7) that conform to the dimensions in ISO 3601-1, which are repeated in Table 4 of this part of ISO 6162. For equivalent SAE O-rings, see annex A. d)Select metric or inch screws corresponding to the sizes and lengths indicated in Tables 1 or 2 and, depending up
39、on whether type 1 or type 2 flange clamps were chosen, as specified in 5.1 and 5.2. e)Designate both thread size and length of screws. f)Designate four-screw split-flange or one-piece flange connector sizes by the nominal flange diameter that corresponds to the maximum diameter of the bore through t
40、he flanged head. 7Tolerances All dimensions for flange clamps and flange heads which are not otherwise limited shall be in accordance with ISO 273, medium series, and ISO 2768-1, class m. NOTEDimensions and tolerances given in the Tables apply to the finished parts, plated or otherwise processed, as
41、 specified by the purchaser. 8Finish 8.1 The external surface on all flanges, except weld-on flange heads, shall be protected with an appropriate coating to pass a minimum salt spray test in accordance with ISO 9227, unless otherwise agreed upon by the supplier and purchaser. Weld-on flange heads sh
42、all be protected from corrosion by an oil film, phosphate coating or by other means that do not negatively affect weldability to meet a neutral salt spray test in accordance with ISO 9227, unless otherwise agreed upon by the supplier and purchaser. 8.2Flange clamps shall meet the requirements of a s
43、alt spray test in accordance with ISO 9227, unless otherwise agreed upon by the supplier and purchaser. 8.3Screws and washers shall meet the requirements of a salt spray test in accordance with ISO 9227. All screws of property class 10.9 shall be phosphate coated with an oil finish. 72-h 16-h 32-h 1
44、6-h ISO 6162-1:2002(E) 4 ISO 2002 All rights reserved 8.4 Any appearance of red rust during the above salt spray tests shall be considered failure, except for the following: all internal passages; edges such as hex points, serrations and crests of threads where there may be mechanical deformation of
45、 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, bending and other post-plate metal forming operations; areas where the parts are suspended or affixed in the test chamber and
46、 condensate can accumulate. 8.5 All connection components shall be free from hanging burrs, loose scale and slivers that might become dislodged in use, and from all other defects that might affect their serviceability. All machined surfaces shall have a surface roughness value of , except where othe
47、rwise specified. 8.6 A smooth sealing surface shall be provided. Annular tool marks up to a surface roughness value, , of shall be permitted. 8.7For more specific finish requirements, see Figures 1 to 6. 9Pressure/temperature requirements 9.1Testing shall be conducted in accordance with ISO 8434-5 t
48、o determine that flange connectors conforming to this part of ISO 6162 meet the specified pressure/temperature requirements. For flange connections of nominal sizes up to and including DN 51, the burst test and cyclic endurance tests shall be conducted. For flange connections of nominal sizes larger
49、 than DN 51, the supplier and purchaser shall agree upon the test requirements or calculation methods to be used to verify that the flange connectors meet requirements. 9.2Flange connectors complying with this part of ISO 6162 and made of carbon steel shall be suitable for use at the working pressures given in Tables 1 and 2 when used at fluid