JIS-B-2311-ERTA-1999-ENG.pdf
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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
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