BS 6537-1984 Specification for staple type connectors for hydraulic fluid power applications《液压流体设备用U型接头规范》.pdf

1、BRITISH STANDARD BS 6537:1984 Specification for Staple type connectors for hydraulic fluid power applications UDC 621.643.415:621.22BS6537:1984 This British Standard, having been prepared under the directionof the Mechanical Engineering Standards Committee, was published underthe authority of the Bo

2、ardofBSI and comes into effecton 31December1984 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference MEE/186 Draft for comment 83/74965 DC ISBN 0 580 14050 4 Committees responsible for this BritishStandard The preparation of this British Standard was entr

3、usted by the Mechanical Engineering Standards Committee (MEE/-) to Technical Committee MEE/186 upon which the following bodies were represented: Association of British Mining Equipment Companies Association of Hydraulic Equipment Manufacturers British Compressed Air Society British Hydromechanics Re

4、search Association British Steel Corporation British Telecommunications Department of Trade and Industry (National Engineering Laboratory) Electricity Supply Industry in England and Wales Federation of Manufacturers of Construction Equipment and Cranes Health and Safety Executive Institution of Mech

5、anical Engineers Machine Tool Industry Research Association Ministry of Defence National Coal Board The following bodies were also represented in the drafting of the standard, through subcommittees and panels: British Industrial Truck Association British Rubber Manufacturers Association British Stee

6、l Industry Engineering Equipment and Materials Users Association Hydraulic Press Manufacturers Association Amendments issued since publication Amd. No. Date of issue CommentsBS6537:1984 BSI 01-2000 i Contents Page Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Designation 1 3 Pres

7、sure rating 1 4 Component construction 1 5 Connector assemblies 2 Figure 1 Typical assemblies of swivel and fixed connectors 3 Figure 2 Details of male and female connectors 4 Figure 3 Toroidal sealing ring (“O”-ring) 6 Figure 4 Back-up ring 6 Figure 5 Round section staple: corrosion-resisting steel

8、 7 Figure 6 Square section staple: corrosion-resisting steel 8 Figure 7 Square section staple: spring steel 9 Figure 8 Examples of various typical connector configurations 10 Table 1 Range of nominal sizes and their pressure ratings 1 Table 2 Interface dimensions of male and female connectors 5 Tabl

9、e 3 Dimensions of “O”-rings 6 Table 4 Dimensions of back-up rings 6 Table 5 Dimensions of round section staples: corrosion-resisting steel 7 Table 6 Dimensions of square section staples: corrosion-resisting steel 8 Table 7 Dimensions of square section staples: spring steel 9 Table 8 Envelope dimensi

10、ons of various connector configurations 11 Publications referred to Inside back coverBS6537:1984 ii BSI 01-2000 Foreword This British Standard has been prepared under the direction of the Mechanical Engineering Standards Committee and is based upon initial proposals prepared by the National Coal Boa

11、rd. It relates to a series of metal connectors secured by staples to enable hydraulic engineers to connect rigid and flexible tubing to fluid power system components. The design of fittings specified in this standard has been proof tested in association with type 2 hoses specified in ISO DIS6805-2 1

12、) , which will be published as a British Standard, and in accordance with the test method described in BS5173-2. It is the duty of the designer and/or manufacturer to ensure that unspecified dimensions, materials and production processes are compatible with rated pressure and service conditions, e.g

13、. fluids to be employed, etc. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of

14、pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to12, an inside back cover and a back cover. 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.

15、 1) In preparation.BS6537:1984 BSI 01-2000 1 1 Scope This British Standard specifies the dimensions of the male to female interface of a range of staple type connectors and adaptors used with rigid and flexible tubing in fluid power systems, primarily in the mining and other heavy industries. Method

16、s and materials of construction to withstand specific pressures are also specified. The standard also illustrates and specifies leading dimensions for a basic range of connector types, examples of which are illustrated, having bodies which are forged, fabricated or machined from solid bar, but with

17、no restriction as to the form of additional connectors, including adaptors designed to interface with threaded systems. NOTEThe titles of the publications referred to in this standard are listed on the inside back cover. 2 Designation The connectors shall be designated by the nominal sizes listed in

18、Table 1 and subsequentTable 2 toTable 8. 3 Pressure rating The rated pressure for which each connector is suitable shall be as specified inTable 1. Table 1 Range of nominal sizes and their pressure ratings 4 Component construction 4.1 Assembly The connectors shall comprise the components shown assem

19、bled inFigure 1 and detailed in4.2 to4.5. 4.2 Female body (swivel or fixed), and male body 4.2.1 Dimensions. The interface dimensions of these components shall be in accordance withTable 2 andFigure 2. NOTE 1The dimensions specified inTable 2 are after-plating dimensions; actual machining dimensions

20、 will therefore have to take account of plating thicknesses in order to achieve the specified finished dimensions. NOTE 2Alternative fastening of swivel collars to that shown in Figure 2 may be used providing the performance meets, or exceeds, the values stated inTable 1 and that interchangeability

21、is not affected. 4.2.2 Material. The material used in the manufacture of these components shall be a wrought steel complying with section2.1 or section2.2 of BS 970-1:1983, having the following minimum mechanical properties: R m = 360 N/mm 2 2) R e = 250N/mm 22) HB= 103 The use of lead additives sha

22、ll be at the discretion of the manufacturer. NOTEType 220M07 carbon free cutting steel meets this requirement. 4.2.3 Manufacture. The components shall be: a) manufactured from forgings; b) machined from bar stock; or c) fabricated by welding, silver brazing or copper fusion. Forgings shall be normal

23、ized and de-scaled. Welding shall be carried out in accordance with the relevant requirements specified in BS5135. Fabrication by silver brazing and copper fusion shall be carried out in accordance with the relevant requirements of BS1723; copper fusion being performed in a controlled atmosphere. 4.

24、2.4 Surface treatment. The components shall be zinc plated and fully chromate passivated in accordance with the requirements of BS1706, classB (Zn3). NOTEA higher standard of protection may be necessary, if service conditions are severe. See also4.2.1 note 1. 4.2.5 Surface texture. The surface textu

25、re of the sealing surfaces shall not exceed the values shown inFigure 2, measured in accordance with BS1134-1. 4.3 “O”-ring seal 4.3.1 Dimensions. The dimensions and the tolerances of the “O”-ring seals shall be in accordance withTable 3 and Figure 3. Nominal size a Design dynamic pressure rating, c

26、 Metric Imperial b mm in bar 6.3 10 12.5 16 19 25 31.5 ! ) “ * # 1 1! 450 380 310 280 280 280 170 a Nominal size relates to the nominal bore of associated tubing or hoses. b Inch sizes listed for information only. c Based upon a minimum safety factor of 3:1 on burst pressure at55 C. 1bar = 10 5N/m 2

27、= 100kPa. 2) 1N/mm 2= 1 MPa.BS6537:1984 2 BSI 01-2000 4.3.2 Surface imperfections. The acceptable limits for surface imperfections shall be in accordance with BS6442. 4.3.3 Material. “O”-rings shall be manufactured from elastomeric materials that are compatible with the fluid contained by the seal a

28、nd have a hardness of90 5 IRHD. NOTE“O”-rings are normally supplied in nitrile rubber, but may also be produced in other elastomers. 4.4 Back-up ring 4.4.1 Dimensions. The dimensions of the back-up rings shall be in accordance withTable 4 and Figure 4. 4.4.2 Material. The back-up rings shall be manu

29、factured from acetal homopolymer, polyamide or PTFE. 4.5 Staple 4.5.1 Dimensions. The dimensions of the staples shall be in accordance withTable 5 andFigure 5 for round section staples or in accordance withTable 6 andTable 7, andFigure 6 andFigure 7 for square section staples. 4.5.2 Material. The st

30、aples shall be manufactured from the following materials. a) Round section, corrosion-resisting steel, bright drawn and heat treated to condition R to give a tensile strength, R m , of 700N/mm 2to 850N/mm 2(see note1). b) Square section, either: 1) corrosion-resisting steel, type 420S37 bright drawn

31、 and heat treated to condition R to give atensile strength, R m , of 700N/mm 2to 850 N/mm 2(see note 1); or 2) spring steel, type 070A72 bright drawn and heat treated to provide a hardness of45 5 HRC and a tensile strength, R m , of1480N/mm 2to 1520N/mm 2 . NOTE 1Steel type 420S45 (En56D), formerly

32、in BS970-4, is suitable. NOTE 2The chemical compositions of the above steel types are specified in the following standards: type 420S37 in BS 970-1:1983 (formerly EN 56C); type 070A72 in BS 970-5:1972 (formerly EN 42C grade 2). 4.5.3 Protective treatment. Spring steel staples shall be given a protec

33、tive coating, i.e. phosphate in accordance with BS3189. 5 Connector assemblies 5.1 Construction All connectors shall be a combination of the components specified in clause4. 5.2 Assembly The connector assembly shall comprise any suitable combination of female body (swivel or fixed) and male body, ex

34、amples of which are shown in Figure 8. NOTEIf connectors with configurations different to those shown inFigure 8 are required they should still comply with5.1 and5.3. 5.3 Envelope dimensions The maximum envelope dimensions for the connector assemblies shall comply with the relevant dimensions specif

35、ied inTable 8.BS 6537:1984 BSI 01-2000 3 Figure 1 Typical assemblies of swivel and fixed connectorsBS6537:1984 4 BSI 01-2000 Figure 2 Details of male and female connectorsBS6537:1984 BSI 01-2000 5 Table 2 Interface dimensions of male and female connectors (seeFigure 1 andFigure 2) Dimension Nominal

36、size Dimension Nominal size 6.3 10 12.5 16 19 25 31.5 6.3 10 12.5 16 19 25 31.5 mm mm mm mm mm mm mm mm mm mm mm mm mm mm A 0.25 24.4 25.4 25.4 25.4 25.4 34.75 31.75 T 0.1 15.5 15.5 16.0 16.0 16.0 20.1 20.1 B 3.55 3.94 4.31 4.64 4.64 4.69 4.69 U 7.7 7.5 7.7 7.5 7.7 7.5 7.7 7.5 7.7 7.5 9.7 9.5 9.7 9.

37、5 C 7.63 7.50 7.63 7.50 7.63 7.50 7.63 7.50 7.63 7.50 10.63 10.50 7.63 7.50 V 14.95 14.82 19.93 19.80 23.93 23.80 25.93 25.80 28.93 28.80 38.92 38.79 45.92 45.79 D 14 14 14 14 14 19 16 W 9.94 9.81 13.93 13.80 17.93 17.80 20.94 20.81 23.94 23.81 30.93 30.80 37.93 37.80 E 0.25 11.25 11.60 11.90 12.30

38、12.30 15.70 12.70 X 6.87 6.74 10.86 10.73 14.06 13.93 17.06 16.93 20.05 19.92 27.05 26.92 34.03 33.90 F 20.55 20.45 24.83 24.63 28.47 28.34 31.87 31.74 38.50 38.37 50.28 50.15 52.17 52.04 Y 4.7 4.5 7.2 7.0 9.9 9.7 13.2 13.0 15.7 15.5 21.5 21.3 27.2 27.0 G 0.05 14.00 18.00 22.00 24.95 29.65 38.20 43.

39、95 Z 8.5 13.5 17.5 19.5 22.5 30.0 37.0 H 0.05 17.00 20.95 24.95 27.95 34.45 44.05 47.95 AA 0.25 29 29 29 29 29 35 35 J 0.05 13 18 22 24 27 36 43 BB 0.25 11 11 11 11 11 11 11 K (before crimping) 17.40 17.25 21.33 21.20 25.34 25.21 28.34 28.21 34.80 34.60 44.32 44.20 48.34 48.21 CC 5 5 5 5 5 6 6 L min

40、. 17.9 21.9 25.9 28.9 35.4 44.9 48.9 DD 0.15 5 5 5 5 5 7 7 M (before crimping) 24.00 23.87 30.00 29.87 32.60 32.47 36.00 35.87 43.00 42.87 55.00 54.87 56.17 56.04 EE 10.3 10.3 9.8 9.8 9.8 10.8 10.8 N 10.05 10.01 14.05 14.01 18.05 18.01 21.05 21.01 24.05 24.01 31.06 31.01 38.06 38.01 FF 25 32 35 38 4

41、5 55 60 P 15.15 15.07 20.15 20.07 24.15 24.07 26.15 26.07 29.15 29.07 39.18 39.08 46.18 46.08 GG 27 27 32 32 41 50 55 Q 11.0 10.8 11.4 11.2 11.7 11.5 12.1 11.9 12.1 11.9 15.1 14.9 12.1 11.9 HH 0.1 3.1 3.1 3.6 3.6 3.6 3.6 3.6 R 0.25 6.2 6.2 6.2 6.2 6.2 9.2 6.2 JJ 0.13 6.0 6.0 6.0 6.0 6.0 8.5 8.5 S 0.

42、25 25 32 35 38 45 60 a 60 KK max. 1.5 1.5 1.5 1.5 1.5 2.1 2.1 a 55 mm for fixed female body. + 0.25 0 + 0.3 0 + 0 0.2 + 0 0.2 + 0 0.3 + 1 0 + 0 1BS6537:1984 6 BSI 01-2000 Table 3 Dimensions of “O”-rings Table 4 Dimensions of back-up rings Figure 3 Toroidal sealing ring (“O”-ring) Nominal size “O”-ri

43、ng dimensions Internal diameter B Internal diameter tolerance Section diameter A 0.08 mm mm mm 6.3 10 12.5 16 19 25 31.5 6.00 10.00 13.00 16.00 19.00 25.00 33.00 0.15 0.20 0.20 0.20 0.25 0.25 0.30 2.00 2.00 2.50 2.50 2.50 2.50 2.50 Figure 4 Back-up ring Nominal size Internal diameter External diamet

44、er mm mm 6.3 10 12.5 16 19 25 31.5 6.8 10.8 14.0 17.0 20.0 27.0 34.0 10.0 14.0 18.0 21.0 24.0 31.0 38.0 A + 0.1 0 B + 0.1 0BS6537:1984 BSI 01-2000 7 Table 5 Dimensions of round section staples: corrosion-resisting steel Figure 5 Round section staple: corrosion-resisting steel Nominal size A 0.5 B 0.

45、25 C 0.13 D E F G Wire diameter ref. mm mm mm mm mm mm mm 6.3 34.0 17 9.0 6.8 19.2 3.0 4.78 4.72 20 9.5 10 37.0 18 14.0 11.8 24.2 3.0 4.78 4.72 20 10.0 12.5 44.0 20 18.0 15.5 28.2 3.5 4.78 4.72 20 8.5 16 44.0 20 20.0 17.5 30.2 3.5 4.78 4.72 20 9.5 19 54.5 28 23.0 20.5 33.2 4.0 4.78 4.72 20 9.0 25 71

46、.0 35 30.5 27.0 44.7 5.0 6.40 6.35 20 9.5 31.5 75.5 36 37.5 34.0 51.7 5.0 6.40 6.35 20 9.5+ 0.5 0+ 0.5 0+ 1.0 0BS6537:1984 8 BSI 01-2000 Table 6 Dimensions of square section staples: corrosion-resisting steel Figure 6 Square section staple: corrosion-resisting steel Nominal size A 1.0 B 1.0 C 0.5 D

47、E F G sq H 0.25 ref. mm mm mm mm mm mm mm mm 6.3 36 25.5 9 8 20 3 3.93 4.07 2.5 15 28 10 41 26.0 14 13 25 3 3.93 4.07 2.5 15 20 12.5 49 30.0 18 17 29 3 3.93 4.07 2.5 15 16 16 51 31.0 20 19 31 3 3.93 4.07 2.5 15 16 19 56 34.5 23 22 34 3 3.93 4.07 2.5 15 16 25 71 42.0 30 29 45 5 5.92 6.08 3.5 15 16 31

48、.5 79 46.5 37 36 52 5 5.92 6.08 3.5 15 16+ 0.5 0+ 0.5 0+ 1.0 0BS6537:1984 BSI 01-2000 9 Table 7 Dimensions of square section staples: spring steel Figure 7 Square section staple: spring steel Nominal size A 0.5 B 0.5 C 0.25 D E F G sq H 0.25 ref. mm mm mm mm mm mm mm mm 6.3 34 18.5 9 7.5 17.9 3 3.93

49、 4.07 4 10 6 10 38 19.0 14 12.5 22.9 3 3.93 4.07 4 10 8 12.5 44 21.0 18 16.5 26.9 3 3.93 4.07 4 10 6 16 45 21.0 20 18.5 28.9 3 3.93 4.07 4 10 5 19 51 24.5 23 21.0 31.4 3 3.93 4.07 4 10 5 25 68 34.0 30 28.0 42.0 5 5.92 6.08 6 6 5 31.5 77 38.5 37 35.0 49.0 5 5.92 6.08 6 6 3+ 0.5 0+ 0.5 0+ 2.0 0BS6537:1984 10 BSI 01-2000 *