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1、IS JAPANESE I NDUSTRIAL STA N DA R D Translated and Published by Japanese Standards Association (JSRAE / JSA) Pipe flanges for refrigerants ICs 23.040.60; 27.200 Reference number : JIS B 8602 : 2002 (E) PROTECTED BY COPYRIGHT 13 S Copyright Japanese Standards Association Provided by IHS under licens
2、e with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 21:13:46 MDTNo reproduction or networking permitted without license from IHS -,-,- B 8602 : 2002 Foreword This translation has been made based on the original Japanese Industrial Standard revised by the Ministe
3、r of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee, as the result of proposal for revision of Japanese Industrial Standard submitted by the Japan Society of Refkigeration Air Conditioning Engineers (JSRAE)/ the Japanese Standards Association (JSA) w
4、ith the draft being attached, based on the provision of Article 12 Clause 1 of the Industrial Standard- ization Law applicable to the case of revision by the provision of Article 14. Consequently JIS B 8602 : 1999 is replaced with this Standard. Attention is drawn to the possibility that some parts
5、of this Standard may conflict with a patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have technical properties. The relevant Minister and the Japanese Industrial Standards Commi
6、ttee are not responsible for identifying the patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have the said technical properties. Date of Establishment: 1962-08-01 Date of Revisi
7、on: 2002-09-20 Date of Public Notice in Official Gazette: 2002-09-20 Investigated by: Japanese Industrial Standards Committee Standards Board Technical Committee on Industrial Machinery JIS B 8602 : 2002, First English edition published in 2003-02 Translated and published by: Japanese Standards Asso
8、ciation 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 JSA2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any m
9、eans, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for
10、Resale, 03/15/2007 21:13:46 MDTNo reproduction or networking permitted without license from IHS -,-,- B 8602 : 2002 Contents Scope Normative references Classification Shapes and dimensions Materials and processing . Appearance . Inspection Designation . Marking . Page 1 1 1 1 1 2 2 5 5 (i PROTECTED
11、BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 21:13:46 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS B 8602 : 200
12、2 Pipe flanges for refrigerants 1 Scope This Japanese Industrial Standard specifies the pipe flanges for piping and stop valves (hereafter referred to as “flanges”), to be used for refrigerating equip- ment and heat-pump equipment. Remarks : The pressure used in this Standard is gauge pressure. 2 No
13、rmative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the standards (including amendments) indicated below shall be applied. JIS B 1001 Diameter of clearance holes and counterbores
14、for bolts and screws JIS B 105 1 Mechanical properties of fasteners made of carbon steel and alloy steel- Part 1 :Bolts, screws and studs JIS B 1180 Hexagon head bolts and hexagon head screws JIS 3 2238 General rules for steel pipe flanges JIS G 0303 General rules for inspection of steel JIS G 4051
15、Carbon steels for machine structural use JIS H 3250 Copper and copper alloy rods and bars 3 Classification The flanges shall be classified into two types, the steel flange and copper alloy flange, and divided according to the refrigerants to be used mainly, type and shape of flanges, type of couplin
16、g? method of connection and maximum working pressure as given in Table 1 and Table 2. 4 Shapes and dimensions The shapes and dimensions of flanges shall be as fol- lows: a) The shapes and dimensions of respective portions shall be as shown in Attached Tables 1 to 14. b) c) The dimensional tolerances
17、 shall be as specified in JIS 3 2238. The bolt fastening surface shall be parallel to the flange coupling surface. 5 Materials and processing The materials and processing of flanges shall be as follows: a) The materials for steel flange are as follows: i) For steel flanges, S25C in JIS G 4051 suitab
18、le for welding and brazing is used. The flanges of this material shall be of the maximum working tem- perature 150 O C and not be used under the temperature -60 O C . The inspection is carried out in accordance with JIS G 0303 to ensure that the materials are 440 N/mm2 in tensile strength (400 N/mm2
19、 for those of steel diameter, distance between opposite sides, or thickness of main part is over 100 mm up to and including 200 mm) and 265 N/mm2 or more in yield point. 2) PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/11
20、11111001, User=Wing, Bernie Not for Resale, 03/15/2007 21:13:46 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 B 8602 : 2002 b) The steel flanges are processed as follows: i) Hub flange may be processed by machining from hot rolled steel rod or forged steel ingot. The ax
21、is of the completed flange shall be in parallel with the longitudinal axis of the original steel rod or steel ingot (this does not mean that they have to be coaxial). With the exception of the case in i ) , the hub flange is not allowed to be machined from steel rod. 2) c) The material for copper al
22、loy flange shall be (33771 in JIS H 3250 suitable for brazing. The flanges using this material shall be of the maximum working tem- perature 150 “C and not be used under the temperature -80 “C. Bolts The bolts shall be of the materials specified in JIS B 1051, and shall be those specified in JIS B 1
23、180. Strength divisions shall be shown as given in Attached Tables 1 to 13. d) 6 Appearance The appearance of flanges shall be smooth, and be free from de- fects detrimental to use such as flaws, cracks and burrs. 7 Inspection The inspection shall be as follows: a) The shape and dimensional inspecti
24、on shall be carried out by direct measure- ments, limit gauge, and other methods, and the results shall conform to the requirements of 4. b) The appearance inspection shall be carried out visually and the results shall conform to the requirements of 6. PROTECTED BY COPYRIGHT Copyright Japanese Stand
25、ards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 21:13:46 MDTNo reproduction or networking permitted without license from IHS -,-,- Y B 8602 : 2002 Symbolfortype Shape of flange Table 1 Classification of steel flan
26、ges and maximum working pressure ATK ATM RTH RTK RTM RSK RSM RBH RBK RBM Square Round Rhombic Square Round Square Round Rhombic Square Round Ammonia I Refrigerant I used I Type of coupling Method of connection I Fluorocarbon Butting Butting Plugging Welding Welding Welding Brazing 10 % 5.00 - 5.00 5
27、.00 5.00 5.00 5.00 5.00 5.00 5.00 15 1 / 2 5.00 - 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 20 3 1 4 5.00 - 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 25 1 3.45 - - 5.00 5.00 5.00 5.00 - 5.00 5.00 I 32 I 1% I 3.45 I - - , 4.30 I 5.00 , 4.30 I 5.00 I - I 4.30 I 5.00 I Material I JISG4051 S25C I 65 80 (90)
28、 2%“ 3.45 - I 3.45 4.30 3.45 4.30 - 3.45 4.30 3 3.45 - - 3.45 4.30 3.45 4.30 - 3.45 4.30 (3%) 3.45 - - 3.45 4.20 3.45 4.30 - 3.45 4.30 Nominal size FI 125 150 200 250 Maximum working pressure MPa - 3.45 - 3.00 - - 3.45 - 3.45 - - 3.00 - - 3.45 - 3.45 - - - 5 6 8 - 3.00 - - 3.45 - 3.45 - 3.00 - 3.00
29、- - - - - - - - - 10 I 40 I 1 % I 3.45 I - I - I 4.30 I 4.30 I 4.30 I 4.30 I - I 4.30 I 4.30 I I 50 I 2 I 3.45 I - I - I 4.30 I 4.30 I 4.30 I 4.30 I - I 4.30 1 4.30 T r T 1 3.45 I - I - 1 3.45 I 3.45 I 3.45 I 3.45 I - 1 3.45 1 3.45 Informative Remarks 1 The flanges which use ammonia as refrigerant m
30、ay be used for fluoro- carbon and the flange of fluorocarbon may be used for ammonia. 2 90A should not be used. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 21:13:
31、46 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 B 8602 : 2002 Type of coupling Method of connection Table 2 Classification of copper alloy flanges and maximum working pressure Plugging Brazing Refrigerant I used 20 2 5 Fluorocarbon 3 / 4 3 . 0 0 3.45 3.00 4 . 3 0 4 . 3
32、 0 1 - - 3.00 3 . 4 5 4 . 3 0 Icmbolfortype I RBHC I RBKC I RBMC I Shape offlange I Rhombic I Square I Round I Matenal I JIS H 3250 C3771 IKminal size I Maximum working pressure MPa I 10 I 3 / 8 I 3.00 1 3.45 I 3 . 0 0 I 4 . 3 0 1 4 . 3 0 I 15 I 1 4 I 3.00 1 3.45 I 3.00 I 4 . 3 0 I 4 . 3 0 I +. Info
33、rmative - - 3 . 0 0 3.45 4.30 3 . 0 0 - 3.45 - - I 1 3 . 0 0 I 1 3.45 3.00 3.45 3.00 3.45 Table 1 : Remarks 1 These shall not be used for ammonia. 2 90A should not be used. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/11
34、11111001, User=Wing, Bernie Not for Resale, 03/15/2007 21:13:46 MDTNo reproduction or networking permitted without license from IHS -,-,- 5 B 8602 : 2002 8 Designation The products shall be designated by the number or title of this Standard, symbol indicating the type, and the symbol indicating the
35、maximum working pressure and nominal size. For the brazed type, the outside diameter of pipe ap- plied to brazing shall be suffixed. Example : Pipe flange RTMlOOA for refrigerant RTM 3.45-100A T I T L - - - - Nominal size Maximum working pressure Symbol indicating type JIS B 8602 RTM5-25A-32 RTM 5-2
36、5A-32 Outside diameter of pipe to be brazed Nominal size Maximum working pressure Symbol indicating type 9 Marking The flange shall be marked with the following information indelibly on the outside surface. a) Symbol indicating type b) Maximum working pressure c) Nominal size d) Manufacturers name o
37、r abbreviation PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 21:13:46 MDTNo reproduction or networking permitted without license from IHS -,-,- 6 B 8602 : 2002 Atta
38、ched Table 1 Welding neck pipe square flanges, Type ATK hl 4 of groove Note * The grade of surface finish indicates the case of die forging. However, for other cases 7 is to be specified. Unit: mm 2 Strength divisions of bolt shall be as specified in JIS B 1051. There is no unit for strength divisio
39、n of bolt. 3 Bore diameter h of bolt shall be in accordance with JIS B 1001. 4 90A should not be used. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 21:13:46 MDTNo
40、reproduction or networking permitted without license from IHS -,-,- 7 B 8602 : 2002 Attached Table 2 Welding neck pipe round flanges, Type ATM Note * The grade of surface finish indicates the case of die forging. However, for other cases 7 is to be specified. Unit: mm Remarks 1 Designation of screw
41、thread of bolt shall be in accordance with JIS B 1180. 2 Strength divisions of bolt shall be as specified in JIS B 1051. There is no unit for strength division of bolt. 3 Bore diameter h of bolt shall be in accordance with tJIS B 1001. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association
42、Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 21:13:46 MDTNo reproduction or networking permitted without license from IHS -,-,- 8 B 8602 : 2002 Attached Table 3 Welding neck pipe rhombic flanges, Type RTH of groove Note * The g
43、rade of surface finish indicates the case of die forging. However, for other cases is to be specified. t Unit : mm Remarks 1 Designation of screw thread of bolt shall be in accordance with JIS B 1180. 2 Strength divisions of bolt shall be as specified in JIS B 1051. There is no unit for strength div
44、ision of bolt. 3 Bore diameter h of bolt shall be in accordance with JIS B 1001, PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 21:13:46 MDTNo reproduction or networ
45、king permitted without license from IHS -,-,- 9 B 8602 : 2002 Attached Table 4 Welding neck pipe square flanges, Type RTK Details of groove Note * The grade of surface finish indicates the case of die forging. However, for other cases 7 is to be specified. unit: mm Remarks 1 Designation of screw thr
46、ead of bolt shall be in accordance with JIS B 1180. 2 Strength divisions of bolt shall be as specified in JIS I 3 1051. There is no unit for strength division of bolt. 3 Bore diameter h of bolt shall be in accordance with JIS B 1001. 4 90A should not be used. PROTECTED BY COPYRIGHT Copyright Japanes
47、e Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 21:13:46 MDTNo reproduction or networking permitted without license from IHS -,-,- 10 B 8602 : 2002 Dimensions of flange Desig- Bolt hole Nomind Out- Bore Hub
48、 size side diam- nation diam- eterof Tongue and groove Thickness ofScrein eter of flange flance thread Outside Division M a x i - diam- mum eterof Of work- appii- strength ing cable ofbolt pres- 4.6 or 4.8 sure MPa 5.00 5.00 5.00 5.00 5.00 4.30 4.30 4.30 4.30 4.20 3.45 - - - - - - - - - - (90) 100 (3/J 210 91.2 101.6 113 6 110 130 6 109 131 5 145 27 19 52 M