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1、J I S B*83b3 88 4933688 0022582 b r . UDC 621.889.2 : 621.643.3 62-822 o o JAPANESE INDUSTRIAL STANDARD End Fittings and Adapters for Hydraulic Hose Assemblies JIS B 8363-1988 Translated and Published by Japanese Standards Association Printed in Japan 13 S Copyright Japanese Standards Association Pr
2、ovided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:27:30 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*8363 88 = 4333bO8 0822583 8 In the event of any doubt arising, the original Standard in Japan
3、ese is to be final authority. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:27:30 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S Es8363 84 P 4933688 00
4、22584 T W Taper external thread fittings for pipe Parallel external thread fittings for pipe UDC 621.889.2: 621.643.3: 62-822 R 1 G 2 JAPANESE INDUSTRIAL STANDARD J I S Straight Flanged head fittings Type I 450 900 End Fittings and Adapters for Hydraulic B 8363-1988 Hose Assemblies S 4 s 5 9s 1. Sco
5、pe This Japanese Industrial Standard specifies the end fittings, hereinafter referred to as the llfittingslf, and adapters for hose assemblies to be used for hydraulic equipment and hydraulic circuits using mineral working fluid. However, this standard is applicable to the fittings and adapters to b
6、e used for water based working fluid, synthetic system working fluid or medicated fluid, as agreed between the parties concerning acceptance. Flanged head fittings Type II Remark: The units and numerical values given in are in accordance with the customary Units, and are Standard values. 1 in this s
7、tandard Straight H 45O 4H 6 900 9H 2. Classification (Metric external screw thread fittings) (Metric internal screw thread female seat union fittings) 2.1 Types of Fittings The types of the fittings shall be classified as given in Table 1 according to shape. (Ml 7 (MF) 8 Table 1. Types of Fittings T
8、ype of fitting Attached figure Symbol IF l3 Parallel internal thread female seat union fittings for pipe Parallel internal thread male seat union fittings for pipe Remark: Those given in parentheses are ven for informative reference. Applicable Standards: See page 7. Copyright Japanese Standards Ass
9、ociation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:27:30 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S BS8363 88 E 4933608 0022585 L Shape Male to male adapter Male to male adapter 2 B 83
10、63-1988 Screw thread Taper external thread for pipe on one end, parallel external thread for pipe male seat on another end Taper external thread for pipe on one end, parallel external thread for pipe female seat on another end 2.2 Types of Adapters The types of the adapters shall be classified as Ma
11、le to femal union adapter Taper external thread for pipe on one end, parallel internal thread for pipe male seat union on another end 90 elbow 4 5 O elbow 4 5 O elbow 90 elbow Taper external thread for pipe on one end, parallel external thread for pipe female seat on another end Taper external threa
12、d for pipe on one end, parallel external thread for pipe male seat on another end Taper external thread for pipe on one end, parallel external thread for pipe female seat on another end Taper external thread for pipe on one end, parallel external thread for pipe male seat on another end Symbol A l A
13、2 A3 E l E 2 E 3 E 4 Attached figure 9 10 11 12 13 14 15 3. Performances 3 . 1 Pressure Resistances The pressure resistances for fittings and adapters shall be in accordance with the following: 3.1.1 Pressure Resistance for Fittings When the pressure resistance for fitting has been tested by the pre
14、ssure resistance tests specified in Table 2 of JIS B 8360, JIS B 8362 or JIS B 8364, neither leakage nor other abnormalities shall be caused. the maximum working pressure of Table 3. maximum pressure at which the fitting is capable of being used continuously. However, fittings shall not be used at p
15、ressure exceeding Furthermore, the maximum working pressure mentioned herein means that Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:27:30 MDTNo reproduction or networking permitted w
16、ithout license from IHS -,-,- J I S B*8363 88 W 4933608 0022586 3 W 3 B 8363-1988 Table 3. Maximum Working Pressures of Fitting Unit: MPakgf/cm2) I Designation of fitting Symbol of fitting 5, 6 9 I 12 15 19 25 32 8, 9 20 -45 17.0 (2091 (173) R , G, F, C, (MI( 1 34.5 352 27.5 280 1 (MF) 1 38, 50 10.5
17、 107 1 20.5209) I 24.CrC2451 24.0 34.5 - 34.5 352) s, 4 s ) 9 s - 352 1 H, 4H, 9 H 245 1 Note ( ) The symbols in parentheses are given for informative reference. a 3.1.2 Pressure Resistances for Adapters When the pressure resistance for adapter has been tested in accordance with the method of 8.3.2
18、at the test pressure of 2 times the pressure given in Table 4, neither leakage nor other abnormalities shall be caused. However, adapters shall not be used at pressure exceeding the maximum working pressure of Table 4. Table 4. Maximum Working Pressure of Adapters Unit: MPa kgf/cm2 Designation of ad
19、apter I Maximum working pressure 6 I 34.5 352 1 9 I 12 19 27.5 f280 1 25 20.5 (209 1 32 17.0 (173 1 50 I 3.2 Fastening Torques When the union fitting and union adapter have been tested by the method 8.4 with the test torques of 2 times the fastening torques specified in Table 5, neither breakage nor
20、 harmful deformation , nor the leakage from union part nor other abnormalities shall be caused. ceeding the fastening torque of Table 5. Further, the union fitting and union adapter shall not be used with ex- Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS
21、 Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:27:30 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS B883b3 88 W 4933b08 0022587 5 9 38 12 15, 19 25 32 59 118 137 167 206 5, 6 8, 9 25 49 Designation of fitting (or adapter) Fastening torque (2.6)
22、5.0) 6.0) ( i 2 . o ) WO) 17.0)21.01 4 B 8363-1988 50 245 (25.01 Table 5. Fastening Torques U nit : N * m k af - m 1 Type of thread Taper pipe threads Dimensions and dimensional tolerances To be in accordance with JIS B 0203. 4. Dimensions Parallel pipe threads 4.1 Dimensions of Fittings The dimensi
23、ons of fittings shall conform to Attached Figs. 9 to 8. To be in accordance with Grade B of Appendix of JIs 0202. 4.2 Dimensions of Adapters The dimensions of adapters shall conform to Attached Figs. 9 to 15. Metric fine screw threads 4.3 Dimensions and Dimensional Tolerances for Screw Threads The d
24、imen- sions and dimensional tolerances for screw threads shall be in accordance with Table 6. To be in accordance with JIS B 0207 and Grade 2 of JIS B 0211. 5. Appearances The fittings and adapters shall be free from such defects as crackings, harmful flaws in use, cavities and abnormal deformations
25、. 6. Surface Treatment The fittings and adapters shall generally be treated with the coating of Class 1 Grade 2 (MF Zn 11) specified in JIS H 8610, or rust prevention equal 01 superior thereto. In the case where plating is to be processed, the corrosion resistance test shall be carried out in accord
26、ance with 8.5, and the generation of red rust shall not exist. have been removed due to application of fastening and other rust prevention treatment, it shall be as agreed between the parties concerning acceptance. Regarding the places where the protective coatings of plating 7. Materials The materi
27、als of the fittings and adapters shall generally be Class B (SGDB) specified in JIS G 3108, or that complying with 3. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:27:30 MDTNo reproduc
28、tion or networking permitted without license from IHS -,-,- 8. Testing Methods pipe threads Metric fine screw O 5 B 8363-1988 To be in accordance with that for Grade B threads of JIS B 0254. To be in accordance with that for Grade 2 threads 8 . 1 Measurements of Dimensions The measurements of the di
29、mensions shall be carried out by direct measurement or limit gauges. 8.2 Measurements of Thread Accuracy The measurement of the thread accuracy shall be carried out by means of the limit gauge for screw threads shown in Table 7 or inspecting tools having accuracy equal or superior thereto. Table 7.
30、Limit Gauges for Screw Threads Type of threads Taper pipe threads Limit gauge for screw threads To be in accordance with JIS B 0253. threads of JIS B 0252. 8.3 Pressure Resistance Tests 8.3.1 Pressure Resistance Test of Fittings The pressure resistance test of fittings shall be in accordance with th
31、e methods specified 8.1 of JIS B 8360, JIS B 8362 or JIS B 8364. 8.3.2 Pressure Resistance Test of Adapters The pressure resistance test of adapters shall be carried out by pressurizing with water or oil at an ordinary temperature up to the test pressure of 2 times the maximum working pressure speci
32、fied in Table 4, and after a lapse of 1 min the presence of leakage and other abnormalities shall be examined. 8.4 Fastening Torque Test The fastening torque test of the union fitting and union adapter shall be carried out in accordance with the following: (1) Attach the adapter for testing( 2, to a
33、 sample and after it has been fastened up to the test torque of two times the fastening torque specified in Table 5 by means of a torque wrench specified in JIS B 4650, and release. Repeat this procedure five times, ascertain that the union nut can be turned easily with hand, and examine the presenc
34、e of breakage, harmful deformation, and other abnormalities on each part of the fitting. Note ( 2 ) The shape and dimensions of the adapter for testing shall generally conform to the adapter as appropriate, and its material shall be S 25 C of JIS G 4051 or that having quality equal or superior there
35、to. (2) After the testing of (i), carry out the testing of 8.3. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:27:30 MDTNo reproduction or networking permitted without license from IHS
36、-,-,- J I S B*83b3 88 W 4733608 O022589 9 6 B 8363-1988 8.5 Salt Spray Test In the salt spray test, carry out testing for 24 h in accordance with JIS Z 2371 or the method in accordance with that, as appropriate, and examine the presence of generation of red rust on the base metal of the fitting and
37、adapter. have been removed due to application of fastening shall be excluded. However, places of which protection coatings 9. Inspection 9.1 Type Inspection The type inspection shall be carried out on the following inspection items, and the results shall conform to 3., 4. , 5. and 6. (i) Appearance
38、(2) Surface treatment (3) Dimensions (4) Pressure resistance (5) Fastening torque 9.2 Acceptance Inspection The acceptance inspection shall be carried out on the following inspection items, and the results shall conform to 4. and 5. (i) Appearance (2) Dimensions The inspection on (i) Appearance shal
39、l be the 100 % inspection, and on (2) Dimensions shall be the sampling inspection. However, the sampling inspection system shall be as agreed between the parties concerning acceptance. 10. Packaging In packaging the fittings and adapters, their interior shall be cleansed, and dust preventive measure
40、s shall be executed so as to prevent intrusion of dirts, dusts and the like. 11. Designation The fittings and adapters shall be designated by the number of Standard, symbols and designation of fitting and adapter. Example: JIS B 8363 R-6 12. Markings 12.1 Marking on Product The fittings and adapters
41、 shall be marked with the following information. (1) Manufacturers name or its abbreviation Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:27:30 MDTNo reproduction or networking permitt
42、ed without license from IHS -,-,- J I S B*B363 B B 4933688 0022590 5 E 7 B 8363-1988 12.2 Marking on Package The fittings and adapters shall be marked with the following information. (1) (2) (3) Symbols of fittings and adapters Designations of fittings and adapters Manufacturers name or its abbrevia
43、tion Applicable Standards : JIS B 0202-Parallel Pipe Threads JIS B 0203-Taper Pipe Threads JIS B 0207-Metric Fine Screw Threads JIS B 0211-Limits of Sizes and Tolerances for Metric Fine Screw Threads JIS B 0252-Limit Gauges for Metric Fine Screw Threads JIS B 0253-Gauges for Taper Pipe Threads JIS B
44、 0254-Screw Thread Limit Gauges for Parallel Pipe Threads JIS B 4650-T.orque Wrenches JIS B 8360-Wire Reinforced Rubber Hose Assemblies for Hydraulic Use JIS B 8362-High Pressure Thermoplastic Hose Assemblies for Hydraulic Use JIS B 8364-Textile Reinforced Rubber Hose Assemblies for Hydraulic Use JI
45、S G 3108-Rolled Carbon Steel for Cold-Finished Steel Bars JIS G 4051-Carbon Steels for Machine Structural Use JIS H 8610-Electroplated Coatings of Zinc on Iron and Steel JIS Z 2371-Methods of Salt Spray Testing Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=I
46、HS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:27:30 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*83b3 88 E 4933b08 0022591 7 E 8 B 8363-1988 Attached Fig. 1. Taper External Thread Fittings for Pipe (R) Screw thread Unit: mm H (Reference
47、) 5 Symbol- designation Screw thread A (Min.) B (Min.) Reference1 C d (Min.) RM 0 -0.27 R- 5 9.71 13 6 2.5 17 19 19.6 21.9 R- 6 RM 9.71 13 6 3.5 R- 8 10.05 15 6 5. o 19 22 21.9 25.4 0 -0.33 10.05 15 6 5.5 R- 9 R-12 8 8. o 13.16 14.53 14.53 18 19 19 11.5 30 32 36 34.6 37. o 41.6 R-15 10 10 R% 14. O R
48、-19 41.6 47.3 36 41 0 -0.39 R -25 R 1 16.79 21 10 19.5 46 50 53.1 57.7 24 13 25. O 19.10 19.10 23.38 R -32 R -38 57. 7 63.5 69.3 14 31. O 24 28 0 -0.46 17 65 70 75. o 80.8 41. O R-50 R 2 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:27:30 MDTNo reproduction or networking permitted without license from IHS -,-,