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1、UDC 621.643.415: 614.843.2 1. JIS JAPANESE I NDUSTRIAL STANDARD Dimensions of Insert Type Couplings for Fire-Hose JIS B 99 I I -1968 . Translated and Published by Japanese Standards Association Printed in Japan Translation without guarantee In the event of any doubt arising, the original standard in
2、 Japanese is to be evidence -,-,- STD-JIS B 7733-ENGL L7b8 m 4733b08 OS44322 487 m UDC 621.643.415: 614.843.2 JAPANESE INDUSTRIAL STANDARD J I S Dimensions of Insert Type Couplings for Fire-Hose B 9911-1968 (Reaffirmed: 1984) 1. Scope This Japanese Industrial Standard specifies the dimensions of ins
3、ert type couplings( for fire-hose, hereinafter, referred to as the llcouplingslf. Note (I) The type in which a hose is mounted on the outsides of the tail end male and female of a coupling. 2. Names of Respective Parts The names of parts of the coupling shall be as given in the following: Locking ri
4、ng Rubber band D . . L L - - -.-.-IA - Rubber band Rubber packing Claw washer T a i l end female I I 3. Classification The couplings shal be classified, according to their nominal sizes, into four sizes of 40, 50, 65 and 75. 4. Dimensions The dimensions of parts of the coupling shall be in accordanc
5、e with the follow- ing: Reference Standards : JIS B 0202-Parallel Pipe Threads JIS B 0951-Knurling -,-,- 2 B 9911-1968 4.1 Tail End Female Unit: mm Fine .Dimension Nominal aon of Nominal size (dl 40 60 38. O 33. o 50 75 51. O 44.5 65 92 63.5 57. o 75 106 76.0 69.0 Unit: mm 44 57 16 a 56 74 19 a 7 82
6、 I 105 I 24 I 14 I 8 1 19.0 Remarks 1. Dimensions on which tolerances are not specified are recommend- ed dimensions. 2. The basic profiles, basic dimensions of the screw threads and the dimensional deviations and tolerances of the threads shall be as given i n Attached Tables 1 and 2. -,-,- STD-JIS
7、 B 7911-ENGL L9b8 = 4733b08 0544124 25T = Dl D Z -k + 0.2 * 0.3 40 60 65 57.5 46 50 75 81 72.5 59 65 92 99 89.5 73 75 106 I 114 1 103.5 86 3 B 9911-1968 1 L i La Min. : M i n . Min. 21 10 3 24 10 4 30 12 5 37 16 6 4.2 Locking Ring Unit: mm w Unit: mm Remarks 1. Dimensions on which tolerances are not
8、 specified are recomended dimensions. 2. The basic profiles, basic dimensions of the screw threads and the dimensional deviations and tolerances of the threads shall be as given in Attached Tables 1 and 2. STD- JIS D 11 l2 fl 4 B 9911-1968 12 4.3 Claw Washer f 0.2 40 57.5 44.5 50 72.5 57. O 65 89.5
9、71. O 75 103.5 84. o B 9911-ENGL 17b W 4733b08 054qL25 17b W - + 0.2 O + 0.1 + 1 + 0.2 - 3. O 4. O 4.5 10.8 o. 5 4.5 12.8 44 3. O o. 5 Unit: mm W Remark: Dimensions on which tolerances are not specified are recomended dimensions. STD-JIS B 9911-ENGL L9b 4733b 0549L2b O22 d D *0.2 + 0 . 2 O Nominal s
10、ize 40 52.5 4 0 . O 50 66.2 52. O 65 82. O 64.5 75 95.5 77.5 5 B 9911-1968 li la I1 tr ta t4 - 0.1 Min* 23 28 7. O 1.5 4 3. o 29 34 8. O 1.8 5 3.5 36 42 10.6 2. o 7 4.5 44 51 12.6 2.5 8 4.5 Min. - O - 0 . 1 - - o. 2 l l I 4.4 Claw 7 w chamfer, Section AA Unit: mm Remark: Dimensions on which toleranc
11、es are not specified are recomended dimensions. -,-,- 6 B 9911-1968 4.5 Push Ring Unit: mm W Unit: mm I Remarks 1. The hurling shall be the parallel cut of m O. 3 specified i n JIS B 0951. 2. Dimensions on which tolerances are not specified are recommend- ed dimensions. -,-,- 7 B 9911-1968 O - 0.2 4
12、.6 TailEndMale Min. O Min. - 0.2 * 0.2 O O - o. 2 - 1.5 Unit: mm 40 50 65 W 43.6 39. o 38. o 33. o 80 11.7 28.5 55.6 51. O 51. O 44.5 100 14.5 32.5 68.5 63.5 63.5 57. O 120 15.5 39. o Unit: mm Y Nnm 75 I 81.5 I 76.2 I 76.0 I 69.0 1 - 140 I 18.0 -1 45.0 -,-,- 8 B 9911-1968 d D 1 1 - - - 4 0 52. O 43.
13、6 7 50 66. O 55.6 9 65 79.5 68.5 10 75 95. O 81.5 12 4.7 Rubber Packing and Rubber Band lo 1 - Min. 17 6. O 19 6.5 24 7. o 31 7.5 nit: mm Remark: Dimensions on which tolerances are not specified are recommended dimensions. -,-,- STD-JIS B Ll-ENGL lbB 4933b08 0544330 553 m Nominal size of coupling 40
14、 50 65 75 9 B 9911-1968 Screw thread Basic dimension External thread (Tail end female) Nominal deSig- Threads Height of Root and nation per inch Pitch external crest Major diam- Pitch diam- Minor diam- of screw (per 25.4 eter d eter d? eter dl thread mm) thread radius Internal !bread ( , $ , ring) n
15、 P II Y Minor diam-Pitch diam- Major diam- eter d eter dZ .eter dl 60 16 1.5875 1.016 O. 218 60 58.984 57. %8 75 16 1.5875 1.016 O. 218 75 73.984 72.968 92 16 1.5875 1.016 O. 218 92 90.984 89. % 106 14 1.8143 1.162 O. 249 106 104.838 103.676 Attached Table 1. Basic Profiles and Basic Dimensions of S
16、crew Threads for Socket Fittings and Fasten*g Rings 1-I.- Centre line of screw thread The thick continuous line indicates the basic profile. Remark: The basic profile of the threads are in accordance with JIS B 0202. However, the basic dimensions and threads per inch are those of exclusive use for t
17、he insert type coupling for fire-hose. -,-,- 10 B 9911-1968 3 F i R a w 8 ccc a 9 $4 P) c Li P) c .- a P) 1 Li a l c E 6 a -,-,- STD-JIS B 9911-ENGL Lb8 m 4133b08 0544332 32b 11. B 9911-1968 o i o l 2 5 1 2 5 o 0 - W N 0 : - op19 I I n v -,-,- STD-JIS B 77LL-ENGL L7b8 4733b08 0545704 8 4 4 = ! I B 9
18、911-1968 Edition 1 Japanese Text Established by Minister of International Trade and Industry Date of Establishment: 1964- 02- O1 Date of Revision: 1968-01-01 Date of Reaffirmation: Date of Public Notice in Official Gazette: Investigated by : 1984- 03- O1 1984-03-01 Japanese Industrial Standards Committee Divisional Council on General Machinery Technical Committee on Jointing Metals for Fire Fighting Apparatuses This English translation is published by: Japanese Standards Association 1- 24, Akasaka 4, Minato- ku , Tokyo 107 Japan 0 JSA, 1986 Rinted i n Tokyo by Hohbuda Co.,Ud. -,-,-