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1、/ JPS B*8364 88 W 4733608 0022607 7 UDC 621.643.3-036 677.53 : 62-822 JIS JAPANESE INDUSTRIAL STANDARD Textile Reinforced Rubber Hose Assemblies for Hydraulic Use JIS B 8 3 6 4 - 1 9 8 8 Translated and Published by Japanese Standards Association Printed in Japan 9s Copyright Japanese Standards Assoc
2、iation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:54:15 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S 8*8364 88 4933608 0022608 9 In the event of any doubt arising, the original Standard i
3、n Japanese 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, 03/14/2007 20:54:15 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*83b4 88 W 493
4、3608 0022609 O UDC 621.643.3-036:677.53:62-822 JAPANESE INDUSTRIAL STANDARD J I S Textile Reinforced Rubber Hose B 8364-1988 Assemblies for Hydraulic Use 1. Scope This Japanese Industrial Standard specifies the textile reinforced rubber hose assemblies, hereinafter referred to as the “hose assemblie
5、s“ , for hydraulic apparatus and hydraulic circuit using mineral-based or aqueous based hydraulic oil ( l ) . Provided that the using temperature range of this hose assembly shall be -40C to + 100OC. Note (I) It means the soluble hydraulic oil, oil and water emulsion based hydraulic oil, water-glyco
6、l based hydraulic oil, water and the like for hydraulic use. hydraulic oil. Except the medical fluid and ester-based Remark: In this Standard the units and numerical values shown in are in accordance with the conventional units and are Standard values. 2. Classification and Symbols 2.1 Classificatio
7、n Hose assemblies are classified according to the maximum using pressure into Class A and Class B, and according to using textile reinforced rubber hose, hereinafter referred to as the “hose“ and joint metal fitting, hereinafter referred to as the “jointl are divided as given in Table 1. Further, th
8、e maximum using pressure means the maximum pressure capable of being used continuously. Applicable Standards: JIS B 8363-End Fittings and Adapters for Hydraulic Hose Assemblies JIS K 2213-Turbine Oils JIS K 6379-Textile Reinforced Rubber Hoses for Hydraulic Use Corresponding International Standard:
9、I SO 4079 Rubber products-Hoses and hose assemblies, textile reinforced, for hydraulic purposes Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:54:15 MDTNo reproduction or networking per
10、mitted without license from IHS -,-,- J I S B*8364 88 4933608 0022610 7 = Nominal symbol 2 B 8364-1988 Classifi- cation Maximum using pressure MPa kgf/crnZ) TA 5 I Symbol of of joint Designation Symbol Of and joint Class A 6.0 61) 5.2 53) -=4 TA 15 I I B 15 I 15 I B 19 1 19 I TB 5 1 I 2.6 27) TB 6 1
11、 B 32 32 TB 9 I TB 12 I TB 32 I Table 1. Classification I 5 A5 I 3.4 35) I A6 I I i 2.8 29) A 12 12 Remarks 1. 2. The classification of hoses and designation of hoses are in accordance with JIS K 6379. Designations and symbols of joints are in accordance with JIS B 8363. Further, the symbols in ( )
12、are shown for informative reference. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:54:15 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 B 8364-1988 2.2 Mar
13、king Symbols The marking symbols shall be in accordance with the following example. However, this does not specify the arrangement. * I Nominal symbol Examde: TA 6 Hose assembly length 600 G F T LSymbol of joint (parallel internal screw thread for pipe female seat union joint) Symbol of joint (paral
14、lel external screw thread joint for pipe) - Length of hose assembly (600 mm) 3. Performance The performance of hose assembly shall be tested according to 8., and, comply with the specifications of Table 2. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Em
15、ployees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:54:15 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*83b4 88 = 4733608 O022632 O 4 B 8364-1988 d Co 8 E a“ o c a O + I k hl a , a b a, o c a O + I k E 2 - c, M b - E t : a, ? Co c? Co cci O a, g5 $
16、 ? U 2 b : 03 h N Y Co m VI vi (d 4 u h c O O c , VI a, a a (d a, o c C u c, VI d .rl A . 6 M k a, s ho (d a, & b .-I c, cci A N v a, c , Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:
17、54:15 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS B*8364 8 4933608 0022613 2 9 Nominal symbol Test pressure TA 5 6.8 69) TA 6 5 B 8364-1988 Minimum fracture test pressure 13.6 (139) 5.6 (571 I I 11.2 (1143 TA 15 4.8 (491 9.6 98) Table 4. Test Pressure and Minimum Fr
18、acture Test Pressure for Hose Assembly Class B Nominal symbol TB 5 Test pressure Minimum fracture test pressure 20.6 210) 41.2 (420) TB 6 TB 9 TB 12 TB 15 TB 19 TB 25 TB 32 4. Construction 4.1 Construction General The hose assembly shall consist of a hose complying with JIS K 6379 and joints complyi
19、ng with JIS B 8363 as shown in Fig. 1 and, have sufficient function as piping for hydraulic apparatus and hydraulic circuit without defects such as leakage, separation of joints, etc. Further, Fig. 1 is an example and does not specify the details of construction. 17.2 (175) 34.4 (351) 15.6 159) 31.2
20、 (318) 13.8 (141 27.6 (282) 12.0 (122) 24.0 (245) 10.4 106) 20.8 (212) 7.8 80) 15.6 1591 5.2 I 53) 10.4 (106) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:54:15 MDTNo reproduction or
21、networking permitted without license from IHS -,-,- J I S Bg8364 88 = 4933608 0022614 4 Designation of hose 6 B 8364-1988 Threaded joint Designation Of taper screw thread for Pipe screw thread for pipe (informative reference) Designation of parallel Designation Of metric screw thread Fig. 1. Example
22、 of Construction 9 12 15 19 25 Textile reinforced layer inner face Outer face rubber layer Attaching part nut rubber layer Attaching part R % PF % B R % PF % B R K PF K B R 1 PF 1 B L Free length of hose 4 I Length of hose assembly 32 Seat surface R 1% PF1% B M 42X 2 4.2 Combination of Hose and Join
23、t The combination of hose and joint shall be as follows: (1) The maximum using pressure of joint is not less than that of hose. (2) In the case of using threaded joint ER, G, F, C, (M), (MF), the combination is in accordance with that of Table 5. Table 5. Combination of Hose with Threaded Joints M 1
24、4X1.5 M 18X1.5 M 22X1.5 M 2 7 x 2 M 3 3 x 2 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:54:15 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*4364 8
25、8 4933608 0022615 b 7 B 8364-1988 5. Dimensions 5.1 Tolerance on Length of Hose Assembly assembly shall be in accordance with Table 6. The tolerance on length of hose Table 6. Tolerances on Lengths of Hose Assemblies Length of hose assembly Tolerances I Under 500 500 to 1000 excl. I + mm 1000 to 200
26、0 excl. 2000 to 5000 excl. + 1.0 % lo 5000 and over + 2.0 % lo 5.2 Dimensions of Joints after Fitting Dimensions of joints after fitting shall be in accordance with Fig. 2 and Table 7, except the flange head joints. Further, Fig. 2 is an example, and does not specify the details of shape of joint. F
27、ig. 2. Dimensions of Joint after Fitting Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:54:15 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*B364 B B
28、m 4933608 0022636 B m Designation of joint 8 B 8364-1988 Dimension of inner d (min.) diameter after fitting E (max.) L (max.) Table 7. Dimensions of Joints after Fitting 5 6 9 12 15 19 25 Unit: mm I 2 .o 24 36 3.0 26 41 5.0 30 49 7.5 35 54 11.0 38 56 13.5 43 61 18.5 55 69 32 24.0 60 85 I 6. Minimum
29、Bend Radius The minimum bend radius ( 3 ) of hose assembly shall be the value of Table 8. Further, the minimum bend radius shall be obtained from the circular arc of inside described by hose when the hose assembly is bent. Note ( 3 , The minimum bend radius is the minimum value of bend radius which
30、can be used without lowering of performance of hose assembly and is used for impact pressure and cold bend tests. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:54:15 MDTNo reproduction
31、 or networking permitted without license from IHS -,-,- J I S B*83b4 88 W 4933b08 0022bL T Nominal symbol TA 5 TA 6 TA 9 TA 12 TA 15 9 B 8364-1988 Minimum bend radius Nominal symbol Minimum bend radius 51 TB 5 64 TB 6 76 TB 9 102 102 TB 12 127 127 TB 15 140 76 Table 8. Minimum Bend Radius TB 19 152
32、203 Il TB 25 . I II TB 32 I 254 7. Appearance The appearance of hose assembly shall be as follows: (1) The hose shall be free from fissuring, flaws harmful to use, and defects such as bubble. (2) The joint shall be free from cracks, flaws harmful to use, cavities, and defects such as abnormal deform
33、ation. (3) The assembly part of hose and joint shall be free from defects such as exposure of reinforcing layer of hose. 8. Test Methods 8.1 Pressure-Resistance Test Apply the test pressure specified in Table 3 or Table 4 to the hose assembly to be subjected to the test, hereinafter referred to as t
34、he kample“, by water or oil at ordinary temperature, and after lapse of 1 min, examine the existence of leakage and other abnormalities. 8.2 Fracture Pressure Test The fracture pressure test shall be as follows: (1) The sample of which hose has a free length of not less than 300 mm and which has com
35、plied with the test of 8.1, shall be used. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:54:15 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS Bn8364 88 4
36、733608 0022618 I 10 B 8364-1988 (2) Apply the minimum fracture test pressure specified in Table 3 or Table 4 to the sample by water or oil at ordinary temperature, and examine the existence of abnormalities such as separation of joint, bursting of hose, etc. Provided that the time from beginning of
37、pressurizing until reaching the minimum fracture test pressure shall be not less than 1 min. Further, during this test, the sample shall be attached horizontally and its one end, made free. 8.3 Length-Variation Test The measurement of length variation rate shall be as follows: ( 1 ) Make the sample
38、straight state to fill its inside with water or oil, thereafter attach horizontally with one end made free, and attach mark lines so that the distance between the marked lines becomes, as a rule, not less than 500 mm in the axial direction at middle part of the sample. shall not be included. However
39、, in the distance between the marked lines the joint (2) After lapse of time of 1 min in the state where the maximum using pressure specified in Table 1 is applied to the sample, measure the distance between the marked lines. (3) Calculate the length variation rate (%) according to the following for
40、mula ( 1 ). . (1) L?-i1 x 1 O o A l =- Il where d l : variation rate of length (%) zi : distance between the marked lines before pressurizing (mm) z2: distance between the marked lines at pressurizing after lapse of time of 1 min (mm) 8.4 Impact Pressure Test The impact pressure test shall be carrie
41、d out according to the following exclusively for Class B, and it does not apply to Class A. (1) Use the sample complied with the test of 8.1. (2) Make the length of sample to have the free length of hose calculated according to formula (2) in the case where the sample is attached by bending by 180“
42、(Fig. 3 U Character Shape) or calculated according to formula (3) in the case where the sample is attached by bending by 90“ (Fig. 4 L Character Shape). . = A ( R +) +20 ( 2 ) . A( R +) +20 ( 3 ) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/11
43、11111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:54:15 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*8364 88 4933608 0022619 3 I (3 11 B 8364-1988 where I : free length of hose (mm) . at calculation round off to integer. R : minimum bend radius of Table 8
44、 (mm) B : maximum outer diameter of Table 3 of JIS K 6379 (mm) Fig. 3. U Character Shape Fig. 4. L Character Shape Bend a hose of designahn of not more than 25 so as to “ecome the minimum bend radius of Table 8 into U character shape or L character shape, or bend a hose of designation of 32 to L cha
45、racter shape, attach to the manifold of testing apparatus and fix the both ends. (4) Carry out the impact pressure test by using a testing apparatus which generates the impact of pressure wave form and frequency as shown in Fig. 5 and capable of measuring this impact pressure at inlet of manifold by
46、 using an electronic measuring apparatus. Taking the raising pressure speed of rising oflimpact pressure cycle as 350 to 700 MPa/s (3570 to 7140 kgf/cm2 1, and connect the point of 15 % of the maximum impact pressure and the point of 85 % of it by a straight line to obtain it. (5) For the test oil,
47、use Class 2 of JIS K 2213, IS0 VG 46 or the mineral oil equivalent thereto. (6) During the test, let the temperature of circulating oil be at 93 5 5“C, and apply 133 % of the maximum using pressure to the hose of designation of not more than 25, and 100 % of that to the hose of designation of 32 by 200, O00 times, and examine the existence of leakage, fracture, and other abnormalities. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:54:15 MDTNo reproduction or networking