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 reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2010 SAE International All rights reserved. No part of this publication ma
3、y be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside US
4、A) 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/J1926/4_201008SURFACEVEHICLERECOMMENDEDPRACTICEJ1926-4 AUG2010 Issued 2009-07Revised 2010-08 Su
5、perseding J1926-4 JUL2009 Connector for Fluid Power and General UsePorts and Stud End with ASME B1.1 Threadsand O-Ring SealPart 4: External Hex and Internal Hex Inch Port Plugs Dimensions, Design, Test Methods and Requirements RATIONALEStandard has been revised to correct the Tolerances for Internal
6、 Hex Size S2in Table 2 which was previously defined in 4.2 as per ISO 4759-1. The ISO specification was for metric sizes only and did not satisfy the concerns of the C1 committee regarding the smaller size torque limitations.1. SCOPE This part defines performance requirements, dimensions, and design
7、s for 2 through 32 internal and external hex port plugs for use in SAE J1926-1 ports. Testing and usage through many years confirm the performance requirements of port plugs made from carbon steel. The port plugs were specified in SAE J514 without any performance requirements. They have been develop
8、ed and tested to gain a 4:1 working pressure rating for industrial applications. In fluid power systems, power is transmitted and controlled through a fluid (liquid or gas) under pressure within an enclosed circuit. In general applications, a fluid may be conveyed under pressure. Components are conn
9、ected through their threaded ports by stud ends on fluid conductor fittings to tubes and pipes or to hose fittings and hoses. For threaded ports and stud ends specified in new designs in hydraulic fluid power applications, only ISO 6149 shall be used. Threaded ports and stud ends in accordance with
10、ISO 1179, ISO 9974, and ISO 11926 are not to be used in new designs in hydraulic fluid power applications. Conformance to the dimensional information in this part of SAE J1926 does not guarantee rated performance. Each manufacturer should perform testing according to the specification contained in t
11、his part of SAE J1926 to assure that components comply with the performance ratings. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. SAE J
12、1926-4 Revised AUG2010 Page 2 of 132.1.1 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.sae.org.SAE J515 Specification for Hydraulic O-Ring Materials, Properties, and S
13、izes for Metric and Inch Stud Ends, Face Seal Fitting and Four-Screw Flange Tube Connections SAE J1926-3 Connections for General Use and Fluid PowerPorts and Stud Ends with ASME B1.1 Threads and O-Ring SealingPart 3: Light-Duty (L Series) Stud Ends 2.1.2 ASME Publications Available from the ASME, 22
14、 Law Drive, PO Box 2900, Fairfield, NJ 07007-2900, Tel: 973-882-1170, www.asme.org.ASME B1.1 Unified Inch Screw Threads (UN and UNR Thread Form) 2.1.3 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.a
15、stm.org.ASTM B 117 Method of Salt Spray (Fog) Test 2.1.4 ISO Publications Available from ANSI, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org.ISO 48 Rubber, vulcanized or thermoplasticDetermination of hardness (hardness between 10 IRHD and 100 IRHD) ISO 68-2 ISO Genera
16、l Purpose Screw ThreadsBasic profilePart 2: inch screw threads ISO 263 ISO inch screw threadsGeneral plan and selection for screws, bolts, and nutsDiameter range 0.06 to 6 in ISO 922 Corrosion tests in artificial atmosphereSalt spray tests ISO 1302 Technical drawingsMethod of indicating surface text
17、ure on drawings ISO 3601-3 Fluid power systems O-rings Part 3: Quality acceptance criteriaSecond edition ISO 4759-1 Tolerances for fastenersPart 1: Bolts screws and nuts with thread diameters between 1.6 (inclusive) and 150 mm (inclusive) and product grades A, B and C ISO 5598 Fluid power systems an
18、d componentsVocabulary ISO 5864 ISO inch screw threadsAllowances and tolerances ISO 9927 Corrosion tests in artificial atmospheresSalt Spray ISO 19879 Metallic tube connections for fluid power and general useTest methods for hydraulic fluid power SAE J1926-4 Revised AUG2010 Page 3 of 132.2 Related P
19、ublications The following publications are provided for information purposes only and are not a required part of this SAE Technical Report.2.2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-
20、4970 (outside USA), www.sae.org.SAE J1926-1 Connections for General Use and Fluid PowerPorts and Stud Ends with ASME B1.1 Threads and O-Ring SealingPart 1: Threaded Port with O-Ring Seal in Truncated Housing SAE J1926-2 Connections for General Use and Fluid PowerPorts and Stud Ends with ASME B1.1 Th
21、reads and O-Ring SealingPart 2: Heavy-Duty (S Series) Stud Ends 2.2.2 ISO Publications Available from ANSI, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org.ISO 263 ISO inch screw threadsGeneral plan and selection for screws, bolts, and nutsDiameter range 0.06 to 6 in IS
22、O 1179 Pipe connections, threaded to ISO 228/1, for plain end steel and other metal tubes in industrial applicationsISO 3601-1 O-rings: Part 1: Inside diameters, cross-sections, tolerances and size identification code ISO 6149-1 Connections for fluid power and general usePorts and stud ends with ISO
23、 261 threads and O-ring sealingPart 1: Port with O-ring in truncated housing ISO 6149-2 Connections for fluid power and general usePorts and stud ends with ISO 261 threads and O-ring sealingPart 2: Heavy-duty (S series) stud endsDimensions, design, test methods and requirements ISO 6149-3 Connection
24、s for fluid power and general usePorts and stud ends with ISO 261 threads and O-ring sealingPart 3: Light-duty (L series) stud endsdimensions, design, test methods and requirements ISO 9974 Connections for general use and fluid powerPorts and stud ends with ISO 261 threads with elastomeric or metal
25、to metal sealing ISO 10683 FastenersNon-electrolytically applied zinc flake coatings ISO 11926-1 Connections for fluid power and general usePorts and stud ends with ISO 263 threads and O-ring sealingPart 1: Ports with O-ring seal in truncated housing ISO 11926-2 Connections for fluid power and gener
26、al usePorts and stud ends with ISO 263 threads and O-ring sealingPart 2: Heavy-duty (S series) stud endsDimensions, design, test methods and requirements ISO 11926-3 Connections for fluid power and general usePorts and stud ends with ISO 263 threads and O-ring sealingPart 3: Light-duty (L series) st
27、ud endsDimensions, design, test methods and requirements SAE J1926-4 Revised AUG2010 Page 4 of 133. DEFINITIONS For the purposes of this standard, the definitions given in ISO 5598 and the following definitions apply. 3.1 Plug A stud end with no through hole for fluid passage, used to contain hydrau
28、lic fluid. 4. DIMENSIONS 4.1 Plug Dimensions External hex and internal hex plugs shall conform to the dimensions shown in Figures 1 and 2 and given in Tables 1 and 2 respectively. 4.2 Hex Tolerances Hex tolerances across flats shall be in accordance with ISO 4759-1, product grade B. Minimum across c
29、orner dimensions are 1.092 times the nominal width across flats. The minimum side flat is 0,43 times the nominal width across flats. Unless otherwise specified or shown, hex corners shall be chamfered 15 to 30 to a diameter equal the width across flats, with a tolerance of 0/-0.4 mm. Hexagon toleran
30、ce for internal hexagon sockets shall be in accordance with the tolerances presented in Table 2. Minimum across corner hex dimensions are 1.14 times the minimum width across flats. 4.3 Screw Threads The screw threads on the plug shall be inch screw threads to ASME B1.1 tolerance class 2A or ISO 68-2
31、, ISO 263, and ISO 5864. External class 2A threads which are plated or coated may exceed 2A diameters but shall not exceed maximum 3A diameters. 5. REQUIREMENTS 5.1 Working Pressure and Working Temperatures External hex and internal hex plugs conforming to this part of SAE J1926 shall be suitable fo
32、r use at the working pressures given in Table 3 when used at 40 C and +120 C. For use at pressures and or temperatures outside this range, the manufacturer shall be consulted. 5.2 Performance External hex and internal hex plugs conforming to this part of SAE J1926 shall meet the burst and impulse pr
33、essures given in Table 3, and shall be capable of withstanding a vacuum of 6.5 kPa (0.065 bar) absolute pressure when tested in accordance with clause 7 6. O-RINGS Unless otherwise specified, for use at the pressure and temperature requirements of 5.1 and Table 3 and for testing, the O-rings shall b
34、e made of NBR (nitrile) with a hardness of (90 5) IRHD, measured in accordance with ISO 48. conform to the dimensions shown in SAE J515. meet or exceed the O-ring quality acceptance criteria for grade N of ISO 3601-3. Tolerances on O-ring dimensions shall be in accordance with SAE J515. SAE J1926-4
35、Revised AUG2010 Page 5 of 137. TEST METHODS Port plug tests shall be conducted in accordance with ISO 19879 for burst, cyclic endurance (impulse) and vacuum. The qualification test torques given in Table 5 shall be used in testing. Test results shall be reported on the test data form in ISO 19879. 8
36、. DESIGNATION OF PORT PLUGS For ordering information see SAE J846 and Appendix B for detailed ordering examples. 9. MANUFACTURE 9.1 Construction Plugs may be made from low carbon steel by forging, cold forming, or machined from bar stock. 9.2 Workmanship Workmanship shall conform to the best commerc
37、ial practice to produce high quality plugs. Plugs shall be free from visual contaminants, all hanging burrs, loose scale and slivers which might be dislodged in use, and any other defects that might affect the function of the parts.9.3 Surface Finish Unless otherwise specified, surface finish on all
38、 surfaces shall be Ra 6.3 m. 9.4 Plating The external surfaces and threads of all carbon steel parts shall be plated or coated with a suitable material that passes a 96 h salt spray test in accordance with ASTM B 117 or ISO 9227. Any appearance of red rust during the 96 h salt spray test shall be co
39、nsidered failure, except for the following: a. All internal fluid passages. b. Edges such as hex points, serrations and crests of threads where there may be mechanical deformation of the plating or coating typical of mass-produced parts or shipping effects. c. Areas where the parts are suspended or
40、affixed in the test chamber where condensate can accumulate. Parts manufactured to this standard shall not be cadmium plated. Hexavalent chromate coatings are not preferred for commercial and industrial usage due to environmental reasons. Internal fluid passages shall be protected from corrosion dur
41、ing storage and shipping. Changes in plating may affect torque and require re-qualification, when applicable 10. PROCUREMENT INFORMATION The purchaser should supply a description of the plug using the designation in accordance with clause 8 when making an inquiry or placing an order. Deviations from
42、 the requirements of this part of SAE J1926, such as materials, pressures and temperatures, shall be agreed upon by the supplier and the purchaser. 10.1 Plug Protection By a method agreed between manufacturer and user, the face of the port plug, threads shall be protected by the manufacturer from ni
43、cks and scratches which would be detrimental to the fittings function. Paper caps and plugs are not permitted.SAE J1926-4 Revised AUG2010 Page 6 of 1310.2 Marking Port plugs shall be permanently marked with the manufacturers name or trademark 11. IDENTIFICATION STATEMENT (REFERENCE TO THIS PART OF S
44、AE J1926-4) Use the following statement in test reports, catalogues and sales literature when electing to comply with this standard. “Port plugs conform to SAE J1926-4, Connector for Fluid Power and General UsePorts and Stud End with ASME B1.1 Threads and O-Ring SealPart 4: External Hex and Internal
45、 Hex Inch Port PlugsDimensions, Design, Test Methods and Requirements.”aLdd4911S1L121Lba = Optional drill (Included angle should be 118 minimum) b = Stud end in accordance with SAE J1926-3 FIGURE 1 - EXTERNAL HEX PORT PLUG (090109A) TABLE 1 - DIMENSIONS OF EXTERNAL HEX PORT PLUGS Dimensions in milli
46、meters DashSized1(1) Thread Inchd9L4ref.L110.5L12Max S1(2) InchHexTol. 2 5/16 -24 2.4 0.1 7.5 15.2 12.4 11.11 3 3/8 -24 3.2 0.1 7.5 15.2 11.7 12.70 4 7/16 -20 5.2 0.1 9.1 17 12.4 14.26 5 1/2 -20 6 0.1 9.1 17 11.7 15.88 6 9/16 -18 7.6 0.2 10 18.5 11.5 17.46 8 3/4 -16 10.8 0.2 11.1 20.3 10.9 22.22 10
47、7/8 -14 12.8 0.2 12.7 23.6 12.8 25.40 12 1 1/16 -12 16.7 0.2 15.1 27.7 15.7 31.75 14 1 3/16 -12 18.3 0.2 15.1 27.7 15.2 34.93 16 1 5/16 -12 22.3 0.2 15.1 28.4 14.7 38.10 20 1 5/8 -12 27.8 0.2 15.1 30.5 15.2 47.63 24 1 7/8 -12 34.3 0.3 15.1 32.3 15 53.98 32 2 1/2 -12 46.2 0.3 15.1 36.3 14.2 69.85 1.
48、Thread size 5/16 through 7/8 are UNF-2A, sizes 1 1/16 through 2 1/2 are UN-2A. 2. Hex tolerance per ISO 4759-1, product Grade B. For metric hex see ISO 11926-4. SAE J1926-4 Revised AUG2010 Page 7 of 13d10LL LL416151314S 2LL17d112db 11daca = Optional, Socket undercut d14diameter X L17widthb = Socket
49、countersink 90 X d11dia.c = Stud end in accordance with SAE J1926-3 FIGURE 2 - INTERNAL HEX PORT PLUG (090109B) TABLE 2 - DIMENSIONS OF INTERNAL HEX PORT PLUGS Dimensions in millimeters d1(1)Thread Inchd100.15d110.25d12+0.13 0 d14Optional+0.25 L4ref.L13min.L14min.L15+0.000.25L16ref.L17Optional0.5S2HexTol 5/16 -24 11.1 4 3.18 4 7.5 2 4 2.
