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1、J IS JAPANESE I N DU STR I AL STANDARD Translated and Published by Japanese Standards Association Steel butt-welding pipe fittings for ordinary use (Amendment 1) JIS B 2311 : 1997 was amended on August 20,2001. This document describes the amended contents only. ICs 23.040.40 Descriptors : pipe fitti
2、ngs, pipework systems, welded joints, welded fittings Reference number : JIS B 2311 : 2001 (E) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:19:00 MSTNo reproduction or networking permitted without licen
3、se from IHS -,-,- B 2311 : 2001 Foreword This translation 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 Japanese I
4、ndustrial 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 of JIS B 2311 : 1997 has been prepared on August 20,
5、2001. Consequently, Annex (normative) in this amendment is added to JIS B 2311 : 1997. 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 Standards Board Technical Committee on
6、 Machine Elements JIS B 2311 : 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 20
7、02 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, without permission in writing from the publisher. Printed in Japan Copyright Japanese Standards A
8、ssociation Provided by IHS under license with JSALicensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:19:00 MSTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS B 2311 : 2001 Classification by shape Type Sub-class 45“ elbow Short Steel
9、 butt-welding pipe fittings for ordinary use (Amendment 1) Symbol Remarks 45E (SI Annex Attached Table 1 Annex (norm at ive) Pipe fittings of special shape Peculiar angle elbow Necked 90“ elbow Introduction This Annex applies together with the text of JIS B 2311 : 1997. Long 0 E (LI Annex Attached F
10、ig. 1 Short 8 E (SI Long 90E (LI N Annex Attached Table 2 The peculiar angle 8 is an angle up to 180“ excluding 45“, 90“ and 180“ specified by the purchaser. 1 Scope This Annex specifies the requirements for classification, shape and di- mensions, marking and report of pipe fittings with special sha
11、pe not covered by clause 3 of the text of this Standard. For other characteristics than those above-mentioned, the related requirements of the text shall apply. Short 2 Pipe fittings of special shape 90E (S) N 2 . 1 Table 1 of the text shall be classified and symbolized as given in Annex Table 1. Cl
12、assification The pipe fittings of special shape other than those defined in Necked 180“ elbow (double necked) Necked 45“ elbow Annex Table 1 Shape classification and symbols Long 180E (L) N Annex Attached Fig. 2 Short 180E (S) N Long 45E (L) KN Annex Attached Table 2 Short 45E (S) KN Necked 90“ elbo
13、w (single necked) Necked 180“ elbow Long 90E (L) KN Annex Attached Table 2 Short 90E (S) KN Long 180E (L) KN Annex Attached Fig. 3 Short 180E (SI KN Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:19:00 MS
14、TNo reproduction or networking permitted without license from IHS -,-,- 2 B 2311 : 2001 Classification by shape Annex Table 1 (concluded) Symbol Type Necked peculiar angle elbow (single necked) Sub-class Long e E (LI m Short e E (SI m Necked cap Necked reducer Concentric 1 . R (Cl 1N 1 - Eccentric 1
15、 R (E) 1N Necked tee Remarks Straight T (SI N Reducing T (R) N Annex Attached Fig. 4 The peculiar angle is an angle up to 180“ excluding 45“, 90“ and 180“ specified by the purchaser. Annex Attached Fig. 5 Annex Attached Fig. 6 Annex Attached Fig. 7 angle 89.4“ el .bow ., long: 89.4 E (L) 2 Refer to
16、a straight pipe added seamlessly onto the end face of pipe fittings as neck. Shape and dimensions For the shape and dimensions of 45“ elbows, short, Annex Attached Table 1 applies. For the shape and dimensions of necked 90“ elbows (double and single necked) and necked 45“ elbows (single necked), Ann
17、ex Attached Table 2 applies. Annex Attached Fig. 1 shows the shape of peculiar angle elbows. The peculiar angle 8 shall be subjected to the agreement between the parties concerned with delivery. The dimension of D shall be in accordance with Attached Table 3 of the text. The face-to-centre dimension
18、, 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 given in Attached Table 3 of the text. The shape and dimensions shall be as follows. Annex Attached Figs. 2 and 3 show the shape of necked 180“ elbows (double and s
19、ingle 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 3 of the text. Annex Attached Fig. 4 shows the shape of necked peculiar angle elbows (single necked). The peculiar angle, 8 , and the neck
20、length, N, shall be subjected to the agreement between the parties concerned with delivery. For the dimension of D, Attached Table 3 of the text shall apply. Annex Attached Fig. 5 shows the shape of necked caps. A designated neck length, N, may be added, on the agreement between the parties concerne
21、d with delivery, to the dimension given in Attached Table 3 of the text. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:19:00 MSTNo reproduction or networking permitted without license from IHS -,-,- 3 B
22、2311 : 2001 g) Annex 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 4 of the text. Annex Attached Fig. 7 shows the shape of necked tees. A designated
23、 neck length, N, may be added, on the agreement between the parties concerned with delivery, to the dimension given in Attached Tables 5 and 6 of the text. h) i) The dimensional tolerances and limited values shall be as follows: 1) The dimensional tolerances on short type 45“ elbows shall be as give
24、n in Attached Table 7 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 7 of the text applies. For the tolerance on the face-to-back dimension, including neck length, of 180“ elbows, th
25、at on the dimension K given in Attached Table 7 of the text applies. For the tolerance on the face-to-back dimension, including neck length, of necked caps, that on the dimension E given in Attached Table 7 of the text applies. For the tolerance on the face-to-face dimension, including neck length,
26、of necked reducers, that on the dimension H given in Attached Table 7 of the text applies. 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 7 of the text applies. For the limited values for off angles an
27、d off planes, the tolerances on off angle, X, and off plane, Y, given in Attached Table 8 of the text shall apply respectively. 3) 4) 5) 6) 7) 2.3 Marking To be marked with the following information, besides those speci- fied in clause 12 of the text, except that the units of the angle and length ma
28、y be omitted. Where the space is too small to be marked, all the 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 sy
29、mbol N or KN and the designated neck length() Example : In the case of designated neck length 10 mm; N10 or KN10 For necked caps, reducers and tees The symbol N and the designated neck length b) c) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=HP Monitoring/
30、1111111164 Not for Resale, 02/01/2009 00:19:00 MSTNo reproduction or networking permitted without license from IHS -,-,- 4 B 2311 : 2001 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 Attached Table 2. 2.4
31、Report The shape to be stated on the detail sheets specified in clause 13 of the text may be represented as the following examples. a) 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
32、 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 T (R) N10 b) c) d) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:19:00 MST
33、No reproduction or networking permitted without license from IHS -,-,- 5 B 2311 : 2001 Nominal diameter A B 40 1 1 2 50 2 65 2 1 2 80 3 Annex Attached Table 1 Shape and dimensions of 45 elbows, short Outside Face-to-centre diameter dimension D H 48.6 15.8 60.5 21.0 76.3 26.3 89.1 31.6 Unit: mm 250 3
34、00 10 267.4 105.2 12 318.5 126.2 I 90 I 3 / z I 101.6 I 36.8 I 400 450 500 114.3 139.8 165.2 63.1 200 216.3 84.2 16 406.4 168.3 18 457.2 189.4 20 508.0 210.4 I I I J 550 600 650 22 558.8 231.5 24 609.6 252.5 26 660.4 273.5 I 350 1 14 I 355.6 1 147.3 I 700 750 28 711.2 294.6 30 762.0 315.6 800 850 90
35、0 32 812.8 336.7 34 863.6 357.7 36 914.4 378.7 950 1 O00 1050 38 965.2 399.8 40 1016.0 420.8 42 1066.8 441.9 I 1100 1150 1200 44 1117.6 462.9 46 1168.4 484.0 48 1219.2 505. O Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=HP Monitoring/1111111164 Not for Resa
36、le, 02/01/2009 00:19:00 MSTNo reproduction or networking permitted without license from IHS -,-,- 6 B 2311 : 2001 45“ elbow 90“ elbow Annex Neck length Attached D 34.0 Table Long Short Long Short N 15.8 - 38.1 25.4 16 2 Shape and dimensions 42.7 of 19.7 - 47.6 31.8 16 necked 60.5 76.3 89.1 elbows 31
37、.6 21.0 76.2 50.8 16 39.5 26.3 95.3 63.5 18 47.3 31.6 114.3 76.2 18 - $ D J Necked 90“ elbows (double necked) 101.6 114.3 139.8 Necked 45“ elbows (single necked) 55.3 36.8 133.4 88.9 18 63.1 42.1 152.4 101.6 18 78.9 52.6 190.5 127.0 20 Necked 90“ elbows (single necked) Unit: mm 165.2 1 - 3 I2 94.7 6
38、3.1 228.6 152.4 22 300 12 267.4 318.5 Outside I Face-to-centre dimension 157.8 105.2 381.0 254.0 30 189.4 126.2 457.2 304.8 30 I H I F I Remarks 1 For the neck length, N, any other dimensions than those above-mentioned may be taken by the agreement between the parties concerned with delivery. 2 Thos
39、e with a nominal diameter not listed in the above table but being within the range of Attached Table 3 of the text may be necked by the agreement between the parties concerned with delivery. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=HP Monitoring/1111111
40、164 Not for Resale, 02/01/2009 00:19:00 MSTNo reproduction or networking permitted without license from IHS -,-,- Annex Attached Fig. 1 Peculiar angle elbows Annex Attached Fig. 3 Necked 180“ elbows (single necked) 7. B 2311 : 2001 2 I 2 $0 t I Annex Attached Fig. 2 Necked 180“ elbows (double necked
41、) Annex Attached Fig. 4 Necked peculiar angle elbows (single necked) Annex Attached Fig. 5 Necked caps vu N _ - H N - - c- Concentric type 1 Eccentric type 1 Annex Attached Fig. 6 Necked reducers Straight Reducing Annex Attached Fig. 7 Necked tees Copyright Japanese Standards Association Provided by
42、 IHS under license with JSALicensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:19:00 MSTNo reproduction or networking permitted without license from IHS -,-,- o Errata for JIS (English edition) are printed in Srundardizunon Joumd, published monthly by the Japanese Standards Association,
43、and also provided to subscribers of JIS (English edition) in Monthly Informurion. Errata will be provided upon request, please contact: Standardization Promotion Department, Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN TEL. 03-3583-8002 FAX. 03-3583-0462 10% Recyc
44、ied paper Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:19:00 MSTNo reproduction or networking permitted without license from IHS -,-,- J IS JAPANESE INDUSTRIAL. STANDARD Translated and Published by Japa
45、nese Standards Association Steel butt-welding pipe fittings for ordinary use ICs 23.040.40 Descriptors : steels, welding, pipe fittings, pipework systems, forge welding, welded joints, welded fittings Reference number : JIS B 2311 : 1997 (E) 10 s Copyright Japanese Standards Association Provided by
46、IHS under license with JSALicensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:19:00 MSTNo reproduction or networking permitted without license from IHS -,-,- B 2311: 1997 This translation has been made based on the original Japanese Industrial Standard revised by the Minister of Internat
47、ional Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industrial Standardization 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 S
48、tandards Committee Divisional Council on Machine Elements JE B 2311: 1997, First English edition published in 1998-04 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 1998 All rights reserved. Unless oth