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1、J IS JAPANESE I N DUSTR IAL STANDARD Translated and Published by Japanese Standards Association Steel butt-welding pipe fittings (Amendment 1) JIS B 2312 : 1997 was amended on August 20,2001. This document describes the amended contents only. ICs 23.040.40 Descriptors : pipe fittings, pipework syste
2、ms, welded joints, welded fittings Reference number : JIS B 2312 : 2001 (E) 6s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/04/2007 21:58:13 MSTNo reproduction or networking permitted withou
3、t license from IHS -,-,- B 2312 : 2001 Foreword This translat,m has been made based on the original Japanese Industrial Standard revised by the Minister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee, as the result of proposal for revision of Japa
4、nese Industrial Standard submitted by the Japan Pipe Fittings Association (JPFA)/the Japanese Standards Association (JSA) with the draft being attached, based on the provision of Article 12 Clause 1 of the Industrial Standardization Law. This Amendment (August 20, 2001) supplements Annex 2 after Ann
5、ex of JIS B 2312 : 1997. Consequently, the former Annex is re-numbered as Annex 1. Date of Establishment: 1982-10-15 Date of Amendment: 2001-08-20 Date of Public Notice in Official Gazette: 2001-08-20 Investigated by: Japanese Industrial Standards Committee Standard Board Technical Committee on Mach
6、ine Elements JIS B 2312 : 2001, First English edition published in 2002-04 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JSA 2002 Al
7、l rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan Copyright Japanese Standards Associ
8、ation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/04/2007 21:58:13 MSTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS B 2312 : 2001 Classification by shape Type Sub-class 45“
9、 elbow Short Steel butt-welding pipe fittings (Amendment i) Symbol Remarks 45E (S) Annex 2 Attached Table 1 Annex 2 (normative) Pipe fittings of special shape Short Introduction This Annex 2 supplements the contents not specified in IS0 3419 Non- alloy and alloy steel butt-welding fittings and IS0 5
10、251 Stainless steel butt-welding fittings published in 1981 as the Japanese Industrial Standard, and is applied to- gether with JIS B 2312 : 1997. 90E (S) N 1 Scope This Annex 2 specifies the requirements of classification, shape and di- mensions, marking and report for pipe fittings with special sh
11、ape not defined in clause 3 of the text. For the other characteristics than those above-mentioned, the relating requirements of the text shall apply. Necked 180“ elbow (double necked) 2 Pipe fittings of special shape Long 180E (L) N Annex 2 Attached Fig. 2 Short 180E (S) N 2.1 Table 1 of the text sh
12、all be classified and symbolized as given in Annex 2 Table 1. Classification The pipe fittings of special shape other than those defined in Necked 90“ elbow (single necked) Necked 180“ elbow Annex 2 Table 1 Shape classification and symbols Long 90E (L) KN Annex 2 Attached Table 2 Short 90E (S) KN Lo
13、ng 180E (L) KN Annex 2 Attached Fig. 3 Short Peculiar angle elbow 1 I e E (L) 1 Annex 2 Attached Fig. 1 The peculiar angle 8 is an angle up to 180“ excluding 45“, 90“ and 180“ specified by the purchaser. e E (s) 180E (S) KN Necked 90“ elbow I Long I 90E (L) N I Annex 2 Attached Table 2 Annex 2 Attac
14、hed Table 2 45E (S) KN Necked 45“ elbow (single necked) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/04/2007 21:58:13 MSTNo reproduction or networking permitted without license from IHS -,-,
15、- 2 B 2312 : 2001 Classification by shape Type Sub-class Necked peculiar angle Long elbow (single necked) Short Necked cap - Necked reducer Concentric Eccentric Necked tee Straight Reducing Annex 2 Table 1 (concluded) Symbol Remarks 0 E (L) KN 8 E (s) CN R (C) N R (E) N T (S) N T (R) N Annex 2 Attac
16、hed Fig. 4 The peculiar angle 8 is an angle up to 180“ excluding 45“, 90“ and 180“ specified by the purchaser. Annex 2 Attached Fig. 5 Annex 2 Attached Fig. 6 Annex 2 Attached Fig. 7 Shape and dimensions The shape and dimensions shall be as follows. For the shape and dimensions of 45“ elbows, short,
17、 Annex 2 Attached Table 1 applies. For the shape and dimensions of necked 90“ elbows (double and single necked) and necked 45“ elbows (single necked), Annex 2 Attached Table 2 applies. Annex 2 Attached Fig. 1 shows the shape of peculiar angle elbows. The pecu- liar angle 8 shall be subjected to the
18、agreement between the parties concerned with delivery. The dimension of D shall be in accordance with Attached Table 5 of the text. The face-to-centre dimension, S, of elbows with a peculiar angle 8 shall be obtained from S = F x tan (8/2). Where, F is the face-to-centre dimension of 90“ elbows (FI
19、given in Attached Table 5 of the text. Annex 2 Attached Figs. 2 and 3 show the shape of necked 180“ elbows (double and single necked). On the agreement between the parties concerned with delivery, a designated neck length, N, may be added to the dimensions given in Attached Table 5 of the text. Anne
20、x 2 Attached Fig. 4 shows the shape of necked peculiar angle elbows (single necked). The peculiar angle, 8, and the neck length, N, shall be subjected to the agreement between the parties concerned with delivery. For the dimension of D, Attached Table 5 of the text shall apply. Annex 2 Attached Fig.
21、 5 shows the shape of necked caps. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/04/2007 21:58:13 MSTNo reproduction or networking permitted without license from IHS -,-,- 3 B 2312 : 2001 A d
22、esignated neck length, N, may be added, on the agreement between the parties concerned with delivery, to the dimension given in Attached Table 5 of the text. fied in clause-15 of the text, except that the units of the angle and length may be omitted. Where the space is too small to be marked, all th
23、e markings of a), b) and c) may be omitted by the agreement between the parties concerned with delivery. a) For peculiar angle elbows The designated angle Example : In the case of the designated angle 89.4“; 89.4 For necked elbows The symbol N or KN and the designated neck length(1) Example : In the
24、 case of designated neck length 10 mm; N10 or KN10 b) Annex 2 Attached Fig. 6 shows the shape of necked reducers. A designated neck length, N, may be added, on the agreement between the parties concerned with delivery, to the dimension given in Attached Table 6 of the text. Annex 2 Attached Fig. 7 s
25、hows the shape of necked tees. A designated neck length, N, may be added, on the agreement between the parties concerned with delivery, to the dimension given in Attached Tables 7 and 8 of the text. The dimensional tolerances and limited values shall be as follows: i) The dimensional tolerances on s
26、hort type 45“ elbows shall be as given in Attached Table 9 of the text. 2) For the tolerance on the face-to-centre dimension (including neck length, if necked) of elbows, that on the dimension (H, F) given in Attached Table 9 of the text applies. 3) For the tolerance on the face-to-back dimension, i
27、ncluding neck length, of 180“ elbows, that on the dimension K given in Attached Table 9 of the text applies. 4) For the tolerance on the face-to-back dimension, including neck length, of necked caps, that on the dimension (E, EI) given in Attached Table 9 of the text applies. 5) For the tolerance on
28、 the face-to-face dimension, including neck length, of necked reducers, that on the dimension H given in Attached Table 9 of the text applies. 6) For the tolerance on the face-to-centre dimensions, including neck lengths, of necked tees, that on the dimensions (C, M ) given in Attached Table 9 of th
29、e text applies. 7) For the limited values for off angles and off planes, the tolerances on off angle, X, and off plane, Y, given in Attached Table 10 of the text shall apply respectively. Marking To be marked with the following information, besides those speci- Copyright Japanese Standards Associati
30、on Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/04/2007 21:58:13 MSTNo reproduction or networking permitted without license from IHS -,-,- 4 B 2312 : 2001 c) For necked caps, reducers and tees The symbol N and the designated neck l
31、ength Example : In the case of the designated neck length 10 mm; N10 Note (1) Neck length designated other than the neck length, N, given in Annex 2 Attached Table 2. 2.4 the text may be represented as the following examples. a) Report The shape to be stated on the detail sheets specified in clause
32、16 of In the case of peculiar angle 89.4“ elbow, long, single necked with des- ignated length 10 mm 89.43 (L) KN10 In the case of necked cap with neck length 10 mm CN10 In the case of necked eccentric reducer with neck length 10 mm R (E) N10 In the case of necked reducing tee with neck length 10 mm
33、T (R) N10 b) cl d) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/04/2007 21:58:13 MSTNo reproduction or networking permitted without license from IHS -,-,- 5 B 2312 : 2001 50 65 80 Annex 2 At
34、tached Table 1 Shape and dimensions of 45“ elbows, short 2 60.5 21.0 2 1 2 76.3 26.3 3 89.1 31.6 unit: mm Face-to-centre 40 48.6 15.8 200 250 300 8 216.3 84.2 10 267.4 105.2 12 318.5 126.2 I 90 1 312 I 101.6 I 36.8 I 650 I 26 660.4 I I 1 273.5 I I I 125 1 5 139.8 I 52.6 1 1 I I I 1 I 150 1 6 I 165.2
35、 1 63.1 I 355.6 147.3 406.4 168.3 457.2 189.4 508.0 210.4 558.8 231.5 I 600 I 24 I 609.6 I 252.5 I Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/04/2007 21:58:13 MSTNo reproduction or network
36、ing permitted without license from IHS -,-,- 6 B 2312 : 2001 Nominal diameter Outside Face-to-centre dimension diameter 45“ elbow 90“ elbow Neck length H F Short N A B D Long Short Long 25 1 34.0 15.8 - 38.1 25.4 16 Annex 2 Attached Table 2 Shape and dimensions of necked elbows 32 40 F N - 1 1 4 42.
37、7 19.7 - 47.6 31.8 16 1 1 2 48.6 23.7 15.8 57.2 38.1 16 Necked 90“ elbows (double necked) 65 80 Necked 45“ elbows (single necked) 2 1 2 76.3 39.5 26.3 95.3 63.5 18 3 89.1 47.3 31.6 114.3 76.2 18 Necked 90“ elbows (single necked) Unit: mm 100 125 4 114.3 63.1 42.1 152.4 101.6 18 5 139.8 78.9 52.6 190
38、.5 127.0 20 150 200 I 50 I 2 I 60.5 1 31.6 1 21.0 1 76.2 1 50.8 I 16 I 6 165.2 94.7 63.1 228.6 152.4 22 8 216.3 126.3 84.2 304.8 203.2 25 300 I 12 318.5 I I 90 I 3 I 101.6 1 55.3 I 36.8 I 133.4 I 88.9 I 18 I 189.4 126.2 457.2 304.8 30 I 250 I 10 I 267.4 I 157.8 I 105.2 I 381.0 I 254.0 I 30 I Copyrig
39、ht Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/04/2007 21:58:13 MSTNo reproduction or networking permitted without license from IHS -,-,- Annex 2 Attached Fig. 1 Peculiar angle elbows Annex 2 Attache
40、d Fig. 3 Necked 180“ elbows (single necked) Annex 2 Attached Fig. 5 Necked caps 7. B 2312 : 2001 Annex 2 Attached Fig. 2 Necked 180“ elbows (double necked) Annex 2 Attached Fig. 4 Necked peculiar angle elbows (single necked) Concentric type Eccentric type Annex 2 Attached Fig. 6 Necked reducers Stra
41、ight Reducing Annex 2 Attached Fig. 7 Necked tees Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/04/2007 21:58:13 MSTNo reproduction or networking permitted without license from IHS -,-,- Erra
42、ta for JIS (English edition) are printed in Standardization JoumZ, published monthly by the Japanese Standards Association, and also provided to subscribers of JIS (English edition) in MonthZy Information. Emta will be provided upon request, please contact: Standardization Promotion Departmend Japan
43、ese Standards Association 4-1-24, Alcasaka, Minato-ku, Tokyo, 107-8440 JAPAN TEL. 03-3583-8002 FAX. 03-3583-0462 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/04/2007 21:58:13 MSTNo reproduct
44、ion or networking permitted without license from IHS -,-,- J IS JAPANESE IN DUSTRIAL STANDARD Translated and Published by Japanese Standards Association Steel butt-welding pipe fittings ICs 23.040.40 Descriptors : steels, welding, pipe fittings, nickel steels, chromium steels, seamless pipes, pipewo
45、rk systems, forge welding, welded joints, welded fittings Reference number : JIS B 2312 : 1997 (E) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/04/2007 21:58:13 MSTNo reproduction or network
46、ing permitted without license from IHS -,-,- B 2312: 1997 This translation has been made based on the original Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industrial S
47、tandardization Law: Date of Establishment: 1982-10-15 Date of Revision: 1997-08-20 Date of Public Notice in Official Gazette: 1997-08-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Machine Elements JIS B 2312: 1997, First English edition published in 1998-02 Transl
48、ated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JSA 1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm