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1、 . . . . . . - . . . . . . . : : . - . . , _. . . . . . . . ., . . . . - . . . - - J I S B * L 3 72 4933b08 0025527 2 E UDC 621 A43.415: 614.843.3 JAPANESE I NDUSTRIAL STANDARD Classif cation and Dimensions JE B 99 I 3-1972 of Connections for Fire Department Nozzle-Tips Printed in Japan 13 S Transla
2、ted and Published by Japanese Standards Association Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or networking permitted without license from IHS -,-,- . .: .
3、 ._ . . . . . . . c . -.i. . -. . . . .-. . . . . . -. . . . .: , ? . . . . . . . . , . . . . . . . r . : . . . . . : . - . . . . . . :. . . . . I . . . . . ._ . . . .- . . . . . . . . . . . - - J I S B*K9l13 72 W 4933b08 0025528 4 W Translation without guarantee standard in Japanese is to be eviden
4、ce in the event of any doubt arising, the original Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS B*L
5、3 72 m 4933608 O025529 6 m UDC 621.643.415: 614.843.3 JAPANESE INDUSTRIAL STANDARD J I S Classification and Dimensions of Connections B 9913-1972 for Fire Department Nozzle-Tips (Reaffirmed: 1984) 1. Scope of connections for fire department nozzle-tips, hereinafter referred to as the “connections“ .
6、 This Japanese Industrial Standard specifies the classification and dimensions 2. Names of Respective Parts The names of respective parts of the connections shall be as given in the f ollowin g Figure. Figure Gasket Nozzle-body 3. Classification The connections shall be classified into four sizes of
7、 40, 50, 65 and 75 according to their nominal sizes. 4. Dimensions The dimension of parts of the connections shall be as given i n the following: Reference Stan dards : JIS B 0202-Parallel Pipe Threads JIS B 0261-Measuring Method for Parallel Screw Gauges JIS B 0951-Knurling JIS B 3102-Gauge Blanks
8、for Screw Thread Limit Gauges JIS G 4404-Alloy Tool Steels Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or networking permitted without license from IHS -,-,-
9、 2 B 9913-1972 40 50 65 75 Nozzle-tip W 36 32.5 4 4 43 44 26 32.5 16 2 10 1 . 5 16 12 1 3 45 41.5 54 53 54 33 41.5 18 2 12 1.5 18 14 1 3 55 51 65 64 65 42 51 . 20 2 14 1 . 5 20 16 1 3 68 64 79 78 79 54 64 24 2 18 1 . 5 24 20 1 3 Fine Nozzle- body Gasket Knurling Unit: mm - - - Remarks 1. 2. The scre
10、w threads shall be as given in Attached Tables 1 and 2. The knurling shall generally be the crossed-cut of m O. 3 specified in JIS B 0951. The dimensions on which their deviations are not specified are recommended dimensions. 3. Copyright Japanese Standards Association Provided by IHS under license
11、with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S 889733 72 = 4933608 13025533 4 3 B 9913-1972 External thread Attached Table 1. Basic Profiles and Basic Dimensions of Nozzl
12、e Threads In -6 I (The thick continuous line indicates the basic profile of thread.) Nominal size of connec- tion H = O. 960491 P II = O. 640327 P r = O . 137329P p =c4 n Nominal Number Height desk- Of of ex- nation threads Pitch temal of screw (per 25.4 thread thread mm),I P 11 40 I i i i I 2.1167
13、.I 50 2.1167 65 2.5400 1.626 75 I 68 I 10 I 2.5400 I 1.626 Root r O. 291 o. 291 o. 349 o. 349 P 9 7 8 a“ I d , = d - h D = d di = d - 211 D I = di Di =di Unit: mrn hlajor Pitch hlinor hfajor diameter diameter diameter diameter d 1 dl 1 d, 1 D 36.000 I 34645 I 33.290 I %:I 45.000 43.645 42.290 I I l
14、55.000 1 53.374 I 51.748 1 55.000 I I I I I 68.000 I 66.374 I 64.748 I 68.000 mal thread 66.374 1 64.748 Remark: The basic profiles of threads are in accordance with JIS B 0202. However the basic dimensions and threads per inch are those of exclusive use for connections for fire department nozzle-ti
15、ps. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*13 72 m 4933b08 0025532 b m 4 B 9913-1972 F i
16、Q) P- Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or networking permitted without license from IHS -,-,- aaunaalot 8 0 : InInW W E E ! rl O O O + .A g O a ,
17、O OD m 4 -3 O 2 O 43 O W O 2 O 2 O W _. 8 -3 ln N - 4 h I n v) n rl W a c, O z O v) v) W 1 . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or networking permit
18、ted without license from IHS -,-,- J I S B*9913 72 m 4933608 0025534 T m internai thread 6 B 9913-1972 dia- Nearly meter simple pitch diameter Appendix Plain plug gauge for working Plain plug gauge for inspection Limit Gauges for Threads of Connection of Fire Department Nozzle-Tips WM IM Table 10 1.
19、 This Appendix specifies the limit gauges to be used for the dimensional inspection (l) of threads of connections for the fire department nozzle-tips and gauges to be used for their checking. In the case where inspections for the flank of thread, shapes of crest and root, circularity of pitch diamet
20、er, surface roughness and other inspections are required, other measuring instruments shall be used. Note (l) 2. Types, Symbols, Shapes, Dimensions, Dimensional Deviations and Tolerances of Limit Gaupes for Screw Threads The types and symbols of the limit gauges for screw threads are given in Table
21、1, and the shapes, dimensions, dimensional deviations, hereinafter referred to as the “deviations“ and tolerances for the limit gauges are given in Tables 3 to 10, Table 1. Types and Symbols of Limit Gauges for Screw Threads Screw thread Items to be inspected inspected Virtual diameter 1 I pitch Nea
22、rly pitch diameter Pitch dia- External IA Virtual pitch Pitch Minor diameter I Type of limit gauge for screw thread No. of I 1 Table I GR 1 Table 3 GO screw ring gauge (common use for working and inspection) NOT GO screw ring gauge.for working I WR 1. Table 4 I I I IR I Table 5 NOT GO screw ring gau
23、ge for inspection IRound type I 1 1 ; 1 Plain caper gauge for working Flat type I l Table 6 1 Round type I 1:; 1 Plain calliper gauge for inspec tion Flat type I I I 1 GP I Table 7 GO screw plug gauge (common use for working and inspection) NOT GO screw plug gauge for working I . WP 1 Table 8 1 IP I
24、 Table 9 NOT GO screw plug gauge for inspection Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*13
25、 72 m 4933b08 0025535 II Limit gauge for screw thread to be checked 7 B 9913-1972 Number I of Table Type of check gauges 3. Types, Symbols, Shapes, Dimensions, Deviations and Tolerances of Check Gauges Go screw ring gauge (common use for working and inspection) Of the limit gauges for screw threads
26、given in Table 1, types and symbols of gauges for checking the screw ring gauges are given in Table 2, and their shapes, dimensions, deviations and tolerances are given in Tables 11 to 14. GF Table 11 Check plug for GO screw ring gauges Table 2. Types and Symbols of Gauges for Checking Check plug fo
27、r NOT GO screw ring gauges for working NOT GO screw ring gauge for working I I I W F Table 12 NOT GO screw ring gauge for inspection Check plug for NOT GO screw ring gauges for IF Table 13 inspection Go screw ring gauge (common use for working and inspection) GS4 Table 14 Wear check plug for GO scre
28、w ring gauges 4. Relative Positions of Tolerances for Screw Threads, Limit Gauges for Screw Threads and Gauges for Checking Limit Gauges . Regarding the principal dimensions of screw threads and of limit gauges for screw thread and check gauges, the relative positions of respective tolerances are sh
29、own in Fig. 1. 5. Material and Surface Roughness The material of the gauges shall be S Class 3 (SKS 3) of JIS G 4404, OP equivalent or better, and the hardness shall be Hv 660 to 780 (HRC 58 to 63). In addition, the surface roughness of the gauge shall generally be O. 4 S . 6. Inspection of Gauges T
30、he inspection methods of the gauges specified in this Appendix shail be carried out in accordance with JIS B 0261, and the results shall conform to the requirements of 2. to 5. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing
31、, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or networking permitted without license from IHS -,-,- I_ - _ J I S BM913 72 W q33b08 002553b 3 8 B 9913-1972 7. Temperature Condition of Measurement The numerical values of dimensions specified in this Appendix are related to a tempera
32、ture of 20%. 8. Decision on Acceptability In the case where a screw thread is inspected by using the limit gauges for screw threads in accordance with this Appendix, it shall be considered that the screw thread passes the dimensional inspection conducted in accordance with the gauges specified in th
33、is Appendix, when the GO screw gauge or the GO side of the limit plug gauge passes through without using excessive.force, the GO side of the plain calliper gauge passes through in any direction without using excessive force, the NOT GO screw gauge is not screwed beyond two turns of thread, the NOT G
34、O side of the screw plug gauge does not pass through, and the NOT GO side of the plain calliper gauge does not pass through in any direction. Furthermore, the GO screw gauge either for working or for inspection may be properly used by the users, and the product threads shall be deemed to be acceptab
35、le when these have passed by either of the gauges for working and for inspection, provided the gauges are within the tolerances and wear limits specified for those gauges. 9. Marking The gauge shall be marked with its nominal designations, threads per inch, gauge symbol, identification mark of manuf
36、acturer and the year and month of manufacture on an appropriate place. Example: FB 36 threads 12 GR xxx 71-8 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or n
37、etworking permitted without license from IHS -,-,- JIS B*13 72 m 4733608 0025537 5 m 9 B 9913-1972 Fig. 1. Explanatory Diagram of Relative Positions of Tolerances of Screw Threads, Limit Gauges for Screw Threads and Their Check Gauges Gauges for external thread (including check gauges) Gauges for pi
38、tch diameter Gauges for major diameter Plain calliper gauge for working GO NOT C C side side ? Remark: Plain calliper gauge for inspection 3 a 8 0 % .B 3 z “ a : .a gbp O .ti E2 GO NOT GO $2 side side M - Y U ;g 6.2 Diagrornatic indications of the tolerance ranges or wear allowances in Figure mean t
39、he following: Gauges for internal thread I XGX-l minor diameter f basic size nor diameter n Tolerance for screw ring gauge or plain calliper gauge Pitch diameter of internal thread or minor diameter tolerance Pitch diameter of external thread or major diameter tolerance Tolerance for screw I hiinimu
40、m wear allowance plug gauge or plain plug gauge ! 1.1 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or networking permitted without license from IHS -,-,- J I
41、S B*913 72 m 4933608 0025538 7 m Gauge Side . . (Tpierance for pitch diameter) x+ 10 B 9913-1972 Nominal designa- tion of FB 3 6 FB 45 FB 55 FB 68 Table 3. Shapes, Dimensions, Deviations and Tolerances of GO Screw Ring Gauges (Common Use for Working and Inspection) Gauge Symbol: GR - C s 8 %E ti Pit
42、ch diameter (2) dz Minor diameter cfl - Pitch P $ With regard to the wear limit of the pitch diameter, irrespective of the numerical value of Table. it shall be judged that the pitch diameter is within its wear limit, when the wear check plug for GO screw ring gauges specified in Table 14 does not p
43、ass through. In the pitch tolerance, the drunkenness of lead is also included. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:53:33 MDTNo reproduction or networking permitted without li
44、cense from IHS -,-,- NO+Id desg- nation of gauge FB 36 FB 45 FB 55 FB 68 .- -. ._ - _ - _ . . . . . . . . . . . ._ i . . -. . . . . . . Nominal Ncin.innl Threads size of designation er inch connec- of thread Pitch i:$-, 25.4 mm) p o This coincides with the numerical value (this is equal to the numer
45、ical value of the minor diameter U, of the external thread.) of the basic size of the minor diameter (DI) of the internal thread of the connection. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/1
46、5/2007 20:53:33 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS E*913 72 4933608 0025546 6 B 18 B 9913-1972 Table 11. Shapes, Dimensions, Deviations and T lerance of Check Plug for GO Screw Ring Gauges Gauge Symbol: GF (Tolernnce Tor major dimeter) x 3 (Lower deviation
47、1 for major diometer) x Screw Ring Gauge Side Gauge length -d (Lower deviation or pitch diameter) xl 2 (The thick continuous line indicates the basic profile of thread.) Unit: O . O01 mrn FB 68 2.5400 Pitch diameter (2) (12 Major dimeter d 66.374 71 I 6 136.000 I 34 I 5 0 I 16 I I I l I I 71. I 1 45.000 1 34 1 : . 16 84 55.000 42 60 18 84 68.000 42 18 10 25 Notes (2) In this Appendix, this means the simple pitchdiameter. (3 This coincides with the numerical value of the basic size of pitch di