SAE J 514-2012 Hydraulic Tube Fittings《液压管道配件》.pdf

1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref

2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2012 SAE International All rights reserved. No part of this pub

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4、outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J514_201201SURFACEVEHICLESTANDARDJ514 JAN2012 Issued 1950-05Revised 2012-01Supersedi

5、ng J514 SEP2004 Hydraulic Tube Fittings RATIONALEOptional dual angle seat for 37 degree flare swivel connection is expanded to all sizes to provide consistent performance. Drill tolerance is changed according to ISO 2768-1, tolerance class m. 1. SCOPE This SAE Standard covers complete general and di

6、mensional specifications for 37 degree flared and flareless types of hydraulic tube fittings and O-ring plugs. Also included are pipe fittings and adapter unions for use in conjunction with these tube fittings. These fittings are intended for general application in hydraulic systems on industrial eq

7、uipment and commercial products. These fittings are capable of providing leakproof, full flow connections in hydraulic systems operating at working pressures as specified in Table 1 for respective sections. Since many factors influence the pressure at which a hydraulic system will or will not perfor

8、m satisfactorily, the values shown in SAE J1065 should not be construed as a guaranteed minimum. For any application, it is recommended that sufficient testing be conducted and reviewed by both the user and fitting manufacturer to assure that performance levels will be safe and satisfactory. SAE J51

9、4 Revised JAN2012 Page 2 of 54 TABLE 1 - WORKING PRESSURE RATINGS(d)CAPABLE OF 4 TO 1 MINIMUM BURST NomSAEDashSizeNomTube ODmmNomTube ODinStraightThread SizeNomPipeSizeRigid(a)SAE St. Threads Unions andBulkheadsMPaRigid(a)SAE St. Threads Unions and BulkheadspsiAdjustable(b)SAE St. Threads and Female

10、Swivels MPaAdjustable(b)SAE St. Threads and Female Swivels psiFittings(c)With PipeThreadsMPaFittings(c)With PipeThreads psi2 3.18 0.125 5/16-24 1/8 34.5 5000 34.5 5000 34.5 5000 3 4.76 0.188 3/8 -24 1/8 34.5 5000 34.5 5000 34.5 5000 4 6.35 0.250 7/16-20 1/8 34.5 5000 31 4500 34.5 5000 5 7.94 0.313 1

11、/2 -20 1/8 34.5 5000 27.5 4000 34.5 5000 6 9.52 0.375 9/16-18 1/4 34.5 5000 27.5 4000 27.5 4000 8 12.70 0.500 3/4 -16 3/8 31 4500 27.5 4000 21 3000 10 15.88 0.625 7/8 -14 1/2 24 3500 21 3000 21 3000 12 19.05 0.750 1-1/16-12 3/4 24 3500 21 3000 17 2500 14 22.22 0.875 1-3/16-12 3/4 21 3000 17 2500 17

12、2500 16 25.40 1.000 1-5/16-12 1 21 3000 17 2500 14 2000 20 31.75 1.250 1-5/8 -12 1-1/4 17 2500 14 2000 8 1150 24 38.10 1.500 1-7/8 -12 1-1/2 14 2000 10.5 1500 7 1000 32 50.80 2.000 2-1/2 -12 2 10.5 1500 8 1125 7 1000 (a) For fittings in Sections 1, 2, and 3. (b) For fittings in Sections 1 and 2. (c)

13、 For fittings in Sections 1, 2, and 4. (d) Working pressures given are for low carbon steel fittings only. Consult the manufacturer for values for other materials. The standard is divided into six sections as follows: Section 137 Degree Flare Tube Fittings Section 2Flareless Tube Fittings Section 3O

14、ring Plugs (for O-ring Ports see SAE J1926) Section 4Hydraulic Pipe Fittings (formerly SAE J926) Section 5Adapter Unions (formerly in SAE J516) Section 6Tables for Calculating Dimensions on Special Sizes 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this specifica

15、tion to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.

16、sae.org.SAE J343 Test and Test Procedures for SAE 100R Series Hydraulic Hose and Hose Assemblies SAE J405 Chemical Compositions of SAE Wrought Stainless Steels SAE J476 Dryseal Pipe Threads SAE J533 Flares for Tubing SAE J1065 Nominal Reference Working Pressures for Steel Hydraulic Tubing SAE J514 R

17、evised JAN2012 Page 3 of 54 2.1.2 ANSI Publication Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org.ANSI B1.20.1 American Standard Straight Pipe Thread for Mechanical Joints ANSI B1.20.3 Dryseal Pipe Threads (Inch) 2.

18、1.3 ASTM Publication Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM B 117 Method of Salt Spray (Fog) Testing 3. GENERAL SPECIFICATIONS The following general specifications supplement the dimensional data

19、 contained in Tables 3 to 21 with respect to all unspecified detail. 3.1 Size Designations Fitting sizes are designated by the corresponding outside diameter of the tubing for the various types of tube ends and by the corresponding standard nominal pipe size for pipe thread ends. See SAE J846 for pr

20、oper coding and call-out. 3.2 Dimensions and Tolerances Except for nominal sizes and thread specifications, dimensions and tolerances are given in both SI Units and U.S. Customary as designated. Tabulated dimensions shall apply to the finished parts, plated or otherwise processed, as specified by th

21、e purchasers. Hex tolerances across flats are listed in Table 1A. The minimum across-corners dimensions of hexagons shall be 1.092 times the nominal width across flats, but shall not result in a side-flat width less than 0.43 times the nominal width across flats. The minimum across-corners dimension

22、s of external squares shall be 1.25 times the nominal width across flats, but shall not result in a side-flat width less than 0.75 times the nominal width across the flats. TABLE 1A - HEX TOLERANCES NominalHex SizeAcrossFlats mmOverNominalHex SizeAcrossFlats mmIncludeNominalHex Size Across FlatsinOv

23、erNominalHex Size AcrossFlats in IncludeTolerance(MinusOnly) mmTolerance(MinusOnly) in 19.05 0.750 0.3 0.012 19.05 25.40 0.750 1.000 0.4 0.016 25.40 34.92 1.000 1.375 0.5 0.020 34.92 AND UP 1.375 AND UP 0.8 0.031 Tolerance on all dimensions not otherwise limited shall be 0.4 mm (0.016 in). Fitting s

24、eats shall be concentric with straight thread pitch diameters within 0.25 mm (0.010 in) full indicator movement (FIM). Unless otherwise specified, tolerance on hole diameters designated drill in the dimensional tables shall be as tabulated in Table 1B: SAE J514 Revised JAN2012 Page 4 of 54 TABLE 1B

25、 DRILL TOLERANCES Drill Size Range mmDrill Size Range inTolerance, mmPlus Tolerance, mmMinusTolerance, in Plus Tolerance, inMinus0.00 6.00 0.000 0.236 0.1 0.1 0.004 0.004 over 6.00 30.0 0.237 1.181 0.2 0.2 0.008 0.008 over 30.0 over 1.181 0.3 0.3 0.012 0.012 Angular tolerance on axis of ends on elb

26、ows, tees, and crosses shall be 2.50 degrees for 1/8 to 3/8 in tube fittings or 1/8 and 1/4 pipe fittings; 1.50 degrees for 1/2 to 2 in O.D. tube fittings or 3/8 to 2 in pipe fittings. Where so illustrated and not otherwise specified, hexagon corners shall be chamfered 15 to 30 degrees to a diameter

27、 equal to the width across flats, with a minus tolerance of 0.4 mm (0.016 in); or where design permits, corners may be chamfered to the diameter of the abutting surface providing the length of chamfer does not exceed that produced by the 30 degree chamfer previously described. Alternatively, on conn

28、ections other than SAE straight thread, a 5 degree chamfer starting at the undercut diameter behind the threads or outside diameter of the threads shall be allowed, providing the hex width at corners is not reduced below that produced by the 30 degree chamfer previously described. 3.3 Passages Where

29、 passages in straight fittings are machined from opposite ends, the offset at the meeting point shall not exceed 0.4 mm (0.016 in). The cross-sectional area at the junction of passages in angle fittings shall not be less than that of the smallest passage. 3.4 Wall Thickness Unless otherwise designat

30、ed, the wall thickness at any point on fittings shall not be less than the thickness established by the specified dimensions, tolerances, and eccentricities for inner and outer surfaces. 3.5 Contour Details of contour shall be optional with manufacturer provided the tabulated dimensions are maintain

31、ed and serviceability of the fittings is not impaired. 3.6 Straight Threads Unified Standard Class 2A external and Class 2B internal threads with modified minor diameters, where specified, shall apply to plain finish (unplated) fittings of all types. For externally threaded parts with additive finis

32、h, the maximum diameters of Class 2A may be exceeded by the amount of the allowance, that is, the basic diameters (Class 2A maximum diameters plus the allowance) apply to an externally threaded part after plating. For internally threaded parts with additive finish, the Class 2B diameters and modifie

33、d minor diameters apply after plating. The pitch diameter tolerance shall be the same as the corresponding diameter-pitch combination and class of the Unified fine and 12 thread series. See SAE J475 (ISO R725). Where external threads are produced by roll threading and body is not undercut, the unthr

34、eaded portion of body adjacent to the shoulder may be reduced to the minimum pitch diameter. External threads shall be chamfered and internal threads shall be countersunk as specified in the dimensional tables. 3.7 Thread Eccentricity Tolerances The various thread elements of Class 2A external and C

35、lass 2B, modified, internal threads on tube fittings shall be concentric within the following limitations: SAE J514 Revised JAN2012 Page 5 of 54 3.7.1 External Thread (Screw) a. Where screw pitch diameter is maximum and screw major diameter is maximum, these two thread elements must be concentric. H

36、owever, if the screw major diameter is out-of-round, undersize, these two thread elements may be eccentric at the point of out-of-roundness, a full indicator reading amount equal to the screw major diameter tolerance.b. Where screw pitch diameter is minimum and screw major diameter is maximum, these

37、 two thread elements may be eccentric a full indicator reading amount equal to the screw pitch diameter tolerance. c. Where screw pitch diameter is maximum and screw major diameter is minimum, these two thread elements may be eccentric a full indicator reading amount equal to the screw major diamete

38、r tolerance. d. Where screw pitch diameter is minimum and screw major diameter is minimum, these two thread elements may be eccentric a full indicator reading amount equal to the sum of the screw pitch diameter tolerance and the screw major diameter tolerance. 3.7.2 Internal Thread (Nut) a. Where nu

39、t pitch diameter is minimum and nut minor diameter is minimum, these two thread elements must be concentric. However, if the nut minor diameter is out-of-round, oversize, the two thread elements may be eccentric at the point of out-of-roundness, a full indicator reading amount equal to the nut minor

40、 diameter tolerance. b. Where nut pitch diameter is maximum and nut minor diameter is minimum, these two thread elements may be eccentric a full indicator reading amount equal to the nut pitch diameter tolerance. c. Where nut pitch diameter is minimum and nut minor diameter is maximum, these two thr

41、ead elements may be eccentric a full indicator reading amount equal to the nut minor diameter tolerance. d. Where nut pitch diameter is maximum and nut minor diameter is maximum, these two thread elements may be eccentric a full indicator reading amount equal to the sum of the nut pitch diameter tol

42、erance and the nut minor diameter tolerance. 3.8 Pipe Threads Pipe threads, unless there is specific authorization to the contrary, shall conform to the Dryseal American Standard Taper Pipe Thread (NPTF). Specifications are given in detail in SAE J476 (ANSI B1.20.3). The length of full form external

43、 thread shall not be shorter than L2plus one pitch (thread). Where external pipe threads are produced by roll threading, the diameter of the unthreaded shank adjacent to shoulder may be reduced to the E2pitch diameter for brass fittings and to the root diameter on steel fittings. External pipe threa

44、ds shall be chamfered from the diameters tabulated below to produce the specified length of chamfer or partial thread. Internal pipe threads shall be countersunk 90 degrees, included angle, to the diameters tabulated in Table 2: SAE J514 Revised JAN2012 Page 6 of 54 TABLE 2 - PIPE THREAD CHAMFER DIA

45、METERS NominalPipeThread SizeExternalThread ChamferDiaMax mmExternalThread ChamferDiaMax inExternalThread ChamferDiaMinmmExternalThread ChamferDiaMininExternalThread Length ofChamferor PartialThread MinmmExternalThread Length ofChamferor PartialThread MininExternalThread Length ofChamferor PartialTh

46、read Max mmExternalThread Length ofChamferor PartialThread Max inInternalThread Counter-sink Dia MinmmInternalThreadCounter-sink DiaMininInternalThreadCounter-sink DiaMax mmInternalThreadCounter-sink DiaMax in1/8 8.1 0.32 7.6 0.30 0.94 0.037 1.40 0.055 10.7 0.42 11.2 0.44 1/4 10.7 0.42 10.2 0.40 1.4

47、2 0.056 2.13 0.084 14.0 0.55 14.5 0.57 3/8 14.0 0.55 13.5 0.53 1.42 0.056 2.13 0.084 17.5 0.69 18.0 0.71 1/2 17.3 0.68 16.8 0.66 1.80 0.071 2.72 0.107 21.6 0.85 22.1 0.87 3/4 22.6 0.89 22.1 0.87 1.80 0.071 2.72 0.107 26.9 1.06 27.4 1.08 1 28.4 1.12 27.7 1.09 2.21 0.087 3.30 0.130 34.0 1.34 34.8 1.37

48、 1-1/4 37.1 1.46 36.3 1.43 2.21 0.087 3.30 0.130 42.7 1.68 43.4 1.71 1-1/2 43.2 1.70 42.4 1.67 2.21 0.087 3.30 0.130 48.8 1.92 49.5 1.95 2 55.1 2.17 54.4 2.14 2.21 0.087 3.30 0.130 60.7 2.39 61.5 2.42 Tabulated diameters conform with Appendix A of SAE J476. 3.9 Material Unless otherwise specified, f

49、ittings and ferrules shall be made from carbon steel. Flareless type ferrules in Figures 28 and 29 shall be made from SAE 1010, 1112, 1113, 1213, 12L14, or 1215 steel and cyanide hardened to a depth of 0.03 to 0.05 mm (0.0010 to 0.0019 in). Stainless steel fittings shall be made from AISI Type 300 Series stainless steel of good quality.1Flareless type ferrules in Figures 28 and 29 shall be made from sta