BS ISO 6264-1998 en_3649 Hydraulic fluid power - Pressure-relief valves - Mounting surfaces《液压流体动力.减压阀.安装面》.pdf

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1、BRITISH STANDARD BS ISO 6264:1998 Hydraulic fluid power Pressure-relief valves Mounting surfaces ICS 23.100.30BSISO6264:1998 This British Standard, having been prepared under the directionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes into effect on

2、 15 May 1998 BSI 04-1999 ISBN 0 580 29881 7 National foreword This British Standard reproduces verbatim ISO6264:1998 and implements it as the UK national standard. It supersedes BS6494-3:1989 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee MCE/18, Flu

3、id power systems and components, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and Euro

4、pean developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Stand

5、ards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible f

6、or their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the ISO title page, page ii, pages 1 to 18, an inside back cover and a back cover

7、. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSISO6264:1998 BSI 04-1999 i Contents Page National foreword Inside front

8、 cover Foreword iii Introduction 1 1 Scope 1 2 Normative references 1 3 Definitions 1 4 Symbols 1 5 Tolerances 1 6 Dimensions 1 7 Port marking 2 8 Modular stack valves 2 9 Working pressure 2 10 Identification statement (Reference to this International Standard) 2 Annex A (informative) Bibliography I

9、nside back cover Figure 1 Mounting surface for pressure-relief valves with main ports of 4,5mm maximum port diameter (size 02) 3 Figure 2 Directly-operated pressure-relief valves with main ports of 4,5mm maximum port diameter (code: 6264-02-01-*-97) 4 Figure 3 Pilot-operated pressure-relief valves w

10、ith main ports of 4,5mm maximum port diameter (code: 6264-02-01-*-97) 4 Figure 4 Mounting surface for pressure-relief valves with main ports of 7,5mm maximum port diameter (size 03) 5 Figure 5 Directly-operated pressure-relief valves with main ports of 7,5mm maximum port diameter (code: 6264-03-04-*

11、-97) 6 Figure 6 Pilot-operated pressure-relief valves with main ports of 7,5mm maximum port diameter (code: 6264-03-04-*-97) 6 Figure 7 Mounting surface for pressure-relief valves with main ports of 14,7mm maximum port diameter (size 06) 7 Figure 8 Pilot-operated pressure-relief valves with main por

12、ts of 14,7mm maximum port diameter (code: 6264-06-07-*-97) 8 Figure 9 Mounting surface for pressure-relief valves with main ports of 14,7mm maximum port diameter (size 06) 9 Figure 10 Pilot-operated pressure-relief valve with main ports of 14,7mm maximum port diameter (code: 6264-06-09-*-97) 7 Figur

13、e 11 Mouting surface for pressure-relief valves with main ports of 23,4mm maximum port diameter (size 08) 11 Figure 12 Pilot-operated pressure-relief valves with main ports of 23,4mm maximum port diameter (code: 6264-08-11-*-97) 12 Figure 13 Mounting surface for pressure-relief valves with main port

14、s of 23,4mm maximum port diameter (size 08) 13 Figure 14 Pilot-operated pressure-relief with main ports of 23,4mm maximum port diameter (code: 6264-08-13-*-97) 14 Figure 15 Mounting surface for pressure-relief valves with main ports of32mmmaximum port diameter (size 10) 15 Figure 16 Pilot-operated p

15、ressure-relief valves with main ports of32mmmaximum port diameter (code: 6264-10-15-*-97) 16 Figure 17 Mounting surface for pressure relief valves with main ports of32mmmaximum port diameter (size 10) 17 Figure 18 Pilot-operated pressure-relief valves with main ports of32mmmaximum port diameter (cod

16、e: 6264-10-17-*-97) 18ii blankBSISO6264:1998 ii BSI 04-1999 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 commit

17、tees. 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 In

18、ternational Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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

19、 bodies casting a vote. International Standard ISO 6264 was prepared by Technical Committee ISO/TC131, Fluid power systems, Subcommittee SC 5, Control products and components. This second edition cancels and replaces the first edition (ISO6264:1987), of which it constitutes a technical revisions. An

20、nex A of this International Standard is for information only. Descriptors: Hydraulic fluid power, hydraulic transmission, hydraulic valves, pressure regulators, relief valves, mounting surfaces, form specifications, dimensions, dimensional tolerances, marking, codification.BSISO6264:1998 BSI 04-1999

21、 1 Introduction In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure within an enclosed circuit. Hydraulic valves are typical components in such systems. These devices control the flow direction, pressure or flow rate of liquids in the enclosed circui

22、t. 1 Scope This International Standard specifies the dimensions and other data relating to surfaces on which hydraulic pressure-relief valves are mounted in order to ensure interchangeability. It is applicable to mounting surfaces for hydraulic pressure-relief valves which represent current practice

23、; they are generally applicable to industrial equipment. 2 Normative references The following standards contain provisions which, through reference of this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are sub

24、ject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 468:1982, Su

25、rface roughness Parameters, their values and general rules for specifying requirements. ISO 1101:1983, Technical drawing Geometrical tolerancing Tolerancing of form, orientation, location and runout Generalities, definitions, symbols, indications on drawings. ISO 1219-1:1991, Fluid power systems and

26、 components Graphic symbols and circuit diagrams Part 1: Graphic symbols. ISO 1302:1992, Technical drawing Method of indicating surface texture. ISO 4401:1994, Hydraulic fluid power Four-port directional control valves Mounting surfaces. ISO 5598:1985, Fluid power systems and components Vocabulary.

27、ISO 5783:1995, Hydraulic fluid power Code for identification of valve mounting surfaces and cartridge valve cavities. 3 Definitions For the purposes of this International Standard, the definitions given in ISO5598 apply. 4 Symbols 4.1 For the purposes of this International Standard, the following sy

28、mbols apply: a) A, B, L, P, T and X designate ports; b) F 1 , F 2 , F 3 , F 4 , F 5and F 6designate threaded holes for fixing bolts; c) G designates pin holes; d) D designates the fixing screw diameter; e) r maxdesignates mounting surface edge radius. 4.2 The graphic symbols used in Figure 2, Figure

29、 3, Figure 5, Figure 6, Figure 8, Figure 10, Figure 12, Figure 14, Figure 16 and Figure 18 are in accordance with the graphic symbols of ISO1219-1. 4.3 The code system used in this International Standard is defined in ISO5783. 5 Tolerances 5.1 The following values shall be applied to the mounting su

30、rface, i.e. the area within the chain thick lines: surface roughness: R ak 0,84m (see ISO468 and ISO1302); surface flatness: 0,01mm over a distance of100mm (see ISO 1101); tolerance for diameters of locating pin holes:H12. 5.2 The following tolerances shall be respected along the x and y axes with r

31、espect to the origin: pin holes: 0,1mm; screw holes: 0,1mm; port holes: 0,2mm. For other dimensions, see the figures. 6 Dimensions 6.1 Mounting surface dimensions for hydraulic pressure-relief valves shall be selected from the figures specified in 6.2 to 6.6. 6.2 Mounting surface dimensions for pres

32、sure-relief valves with main ports of 4,5mm maximum port diameter (code: 6264-02-01-*-97) are given inFigure 1. 6.3 Mounting surface dimensions for pressure-relief valves with main ports of 7,5mm maximum port diameter (code: 6264-03-04-*-97) are given inFigure 4. 6.4 Mounting surface dimensions for

33、pressure-relief valves with main ports of 14,7mm maximum port diameter (code: 6264-06-09-*-97) are given inFigure 9.BSISO6264:1998 2 BSI 04-1999 6.5 Mounting surface dimensions for pressure-relief valves with main ports of 23,4mm maximum port diameter (code: 6264-08-13-*-97) are given inFigure 13. 6

34、.6 Mounting surface dimensions for pressure relief valves with main ports of 32mm maximum port diameter (code: 6264-10-17-*-97) are given inFigure 17. 7 Port marking 7.1 The port symbols for pressure-relief valves shall be selected from the figures specified in 7.2 to 7.8. 7.2 Symbols for directly-o

35、perated pressure-relief valves with main ports of 4,5mm maximum port diameter (code: 6264-02-01-*-97) are given inFigure 2. 7.3 Symbols for pilot-operated pressure-relief valves with main ports of 4,5mm maximum port diameter (code: 6264-02-01-*-97) are given inFigure 3. 7.4 Symbols for directly-oper

36、ated pressure-relief valves with main ports of 7,5mm maximum port diameter (code: 6264-03-04-*-97) are given inFigure 5. 7.5 Symbols for pilot-operated pressure-relief valves with main ports of 7,5mm maximum port diameter (code: 6264-03-04-*-97) are given inFigure 6. 7.6 Symbols for pilot-operated p

37、ressure-relief valves with main ports of 14,7mm maximum port diameter (code: 6264-06-09-*-97) are given inFigure 10. 7.7 Symbols for pilot-operated pressure-relief valves with main ports of 23,4mm maximum port diameter (code: 6264-08-13-*-97) are given in Figure 14. 7.8 Symbols for pilot-operated pr

38、essure-relief valves with main ports of 32mm maximum port diameter (code: 6264-10-17-*-97) are given inFigure 18. 8 Modular stack valves For modular stack valves, the mounting surfaces and ports marking defined in ISO4401 shall be used. 9 Working pressure For indication of the maximum limit of the w

39、orking pressure, see note 1 in Figure 1, Figure 4, Figure 9, Figure 13 and Figure 17. 10 Identification statement (Reference to this International Standard) It is strongly recommended that manufacturers use the following statement in test reports, catalogues and sales literature when electing to com

40、ply with this International Standard: “Mounting surface dimensions conform to ISO6264:1998, Hydraulic fluid power Pressure-relief valves Mounting surfaces.”BSISO6264:1998 BSI 04-1999 3 1)The minimum thread depth is 1,5 times the screw diameter, D. The recommended full thread depth is 2 D + 6mm to fa

41、cilitate interchangeability of valves and to reduce the number of fixing screw lengths. The recommended engagement of fixing screw thread for ferrous mountings is 1,25 D. 2)The dimensions specifying the area within the chain thick lines are the minimum dimensions for the mounting surface. The corner

42、sof the rectangle may be radiused to a maximum radius, r max , equal to the thread diameter of the fixing screws. Along each axes the fixing holes are at equal distances to the mounting surface edges. 3)This dimension gives the minimum space required for a valve with this mounting surface. The dimen

43、sion is also the minimum distance from centreline to centreline of two identical mounting surfaces placed on a manifold block. The valve manufacturers attention is drawn to the fact that no part of the width of the complete valve assembly shall exceed this dimension. 4)Blind hole in the mounting sur

44、face to accommodate the locating pin on the valves. The minimum depth is 4mm. NOTE 1The supplier shall stipulate the maximum working pressure for subplates and manifold blocks. NOTE 2See Figure 2 and Figure 3 for graphic symbols. Axis P A T B F 1 F 2 F 3 F 4 G ? 4,5 max. ? 4,5 max. ? 4,5 max. ? 4,5

45、max. M5 M5 M5 M5 ? 3,4 x 12 4,3 12 19,7 0 24 24 0 26,5 y 20,25 11,25 2,25 11,25 0 0,75 23,25 22,5 4,75 Figure 1 Mounting surface for pressure-relief valves with main ports of 4,5mm maximumport diameter (size 02)BSISO6264:1998 4 BSI 04-1999 Option according to ISO 5783 0 1 Description External drain

46、Internal drain Pressure-relief valves Pressure-relief valves with by-pass check valve Figure 2 Directly-operated pressure-relief valves with main ports of 4,5mm maximum portdiameter (code: 6264-02-01-*-97) Option according to ISO 5783 2 Description External drain Pressure-relief valves Pressure-reli

47、ef valves with by-pass check valve 1)Port for remote-controlled pilot; it may be blocked if not needed. Figure 3 Pilot-operated pressure-relief valves with main ports of 4,5mm maximum portdiameter (code: 6264-02-01-*-97)BSISO6264:1998 BSI 04-1999 5 1)The minimum thread depth is 1,5 times the screw d

48、iameter, D. The recommended full thread depth is 2 D + 6mm to facilitate interchangeability of valves and to reduce the number of fixing screw lengths. The recommended engagement of fixing screw threadfor ferrous mountings is 1,25 D. 2)The dimensions specifying the area within the chain thick lines

49、are the minimum dimensions for the mounting surface. The cornersof the rectangle may be radiused to a maximum radius, r max , equal to the thread diameter of the fixing screws. Along each axes the fixing holes are at equal distances to the mounting surface edges. 3)This dimension gives the minimum space required for a valve with this mounting surface. The dimension is also the minimum distance from centreline to centreline of two identical mounting surfaces placed on a manifold bloc

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