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1、Y STD-JIS B 2290-ENGL 1998 6 4933608 0562621 077 E J IS JAPANESE INDUSTRIAL STANDARD Translated and Published by Japanese Standards Association JIS B 229011998 Vacuum technology- Flange dimensions ICs 23.160 Descriptors : flanges, pipes, vacuum devices, collars (mechanical components), rotating Refe
2、rence number : JIS B 2290 : 1998 (E) flanges, clamping flanges, bolting 9s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:33:40 MDTNo reproduction or networking permitted without licens
3、e from IHS -,-,- B 2290 : 1998 (IS0 1609 : 1986) Foreword 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
4、tandardization Law. Consequently JIS B 2290 : 1968 is replaced with JIS B 2290 : 1998. Y Date of Establishment: 1957-03-29 Date of Revision: 1998-04-20 Date of Public Notice in Official Gazette: 1998-04-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on General Machine
5、ry T I S B 2290:1998, First English edition published in 2000-04 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN 4 In the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JSA2000 All rights
6、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 Association Pro
7、vided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- STD*JIS B 2290-ENGL L99B 4933h08 OCbZbZ3 94T JAPANESE INDUSTRIAL STANDARD JIS B 2290: 1998 (IS0 1609 :
8、 1986) Vacuum technology-Flange dimensions I b) whether the sealing rings used with the flanges be elastomer O-rings or metal sealing rings, provided that they are compatible with the linear sealing loads given in 4. 2 Normative references The following standards contain provisions which through ref
9、erence in this Standard, constitute provisions of this Standard. The most recent editions of the standards indicated below shall be applied. JIS B 1256 Plain washers JIS B 8365 Dimensions of clamped-type vacuum couplings JIS Z 8601 Preferred numbers IS0 273 IS0 1127 Stainless steel tubes-Dimensions,
10、 tolerances and conventional masses per unit length IS0 4200 Plain end steel tubes, welded and seamless-General tables of dimen- sions and masses per unit length Fasteners-Clearance holes for bolts and screws 3 Dimensions 3 . 1 General 3 . 1 . 1 The dimensions of the flanges or collars shall conform
11、 to those specified in tables 1 to 3. These dimensions are for finished products and do not include allow- ance for machining. Flanges or collars with nominal bores of 10 to 40 inclusive, given in tables 1 to 3, accept the corresponding quick-release couplings specified in JIS B 8365. Relevant dimen
12、sions and tolerances are specified in 5. 4 3 . 1 . 2 The selection of materials shall be compatible with the requirements for flanges and collars used in vacuum technology and with the dimensions given in tables 1 to 3. Copyright Japanese Standards Association Provided by IHS under license with JSAL
13、icensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- STD*JIS B 2 B 2290 : 1998 (IS0 3.1.3 In order to 2270-ENGL 1978 m 4933608 05b2b24 B8b Im 1609 : 1986) ensure the interchangeability of vac
14、uum components, the flanges shall be aligned so that the bolt holes are spaced equidistantly about and off the symmetrical plane of the component. 3.2 Nominal bore 3.2.1 The tables 1 to 3 provide a series of values of nominal bores intended to iden- tify the flanges or collars. 3.2.2 These values fo
15、llow the progression of the R10 series of preferred numbers (see JIS Z 8601) from which only the term 12.5 has been eliminated. 3.2.3 The values of nominal bore belonging to the R5 series of preferred numbers are as follows: 10, 16, 25, 40, 63, 100, 160, 250, 400, 630, 1 O00 3.2.4 The nominal bores
16、63 and 160 given in tables 1 to 3 correspond to practical diameters of 70 mm (or 65 mm) and 153 mm respectively. 3.3 derived from the bolt diameters, D, in accordance with IS0 273-medium series. Diameter of bolt holes, C The values for the diameter of bolt holes, C, are 3.4 is the same for both bolt
17、ed and rotatable flanges. Bolt diameter, D For a flange of given nominal bore, the bolt diameter, D, 3.5 Mating face 3.5.1 Definition The mating face of the flange is the area in the form of a ring, the surface finish and the flatness of which make the sealing of the joint possible. 3.5.2 Limits The
18、 minimum mating face is defined by diameter E in table 1 and S in table 2, and by diameter F in tables 1 and 2. 3.5.3 Profile The flange sealing face shall be flat and no part of the flange shall project in relation to this plane. 3.8 Width of the collar onto which the clamp hooks, G The value for t
19、he width depends on the system of clamps used and should not be greater than 2.5 mm. 3.7 Outside diameter of bolted and rotatable flanges, H The dimensions given for the outside diameter are compatible with the requirement that the bolt washers (JIS B 1256) shall not project beyond the outer circumf
20、erence of the flange. 3.8 for a given bolt stress are derived from the values of the number of bolt holes, n. Number of bolt holes, n The linear sealing loads tabulated in table 4 of 4 . L 3.9 Inner diameter for the contact area of clamps, U So as to take into ac- count the diversity of the clamping
21、 systems which may be used, for example on col- lars with welding necks, the maximum inner diameter of the annulus reserved for contact with the clamps is defined by diameter U. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Win
22、g, Bernie Not for Resale, 03/14/2007 19:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 B 2290 : 1998 (IS0 1609 : 1986) Table 1 Dimensions of bolted flanges n holes of 0 C Nominal bore * I? 16 20 / / / / 25 32 50 80 125 40 63 1 O 0 160 200 SOO / 250 320 400 / 630 80
23、0 1 O00 B - 4.0 45 50 55 70 80 90 110 125 145 175 200 260 310 395 480 580 720 890 1 090 - - C H13 - 6.6 6.6 6.6 6.6 9 9 9 9 9 9 11 11 11 11 14 14 14 14 14 14 - X - 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 Bolts - D 6 6 6 6 8 8 8 8 8 8 10 10 10 10 12 12 12 12 12 12 - - - n 4 4 4 4 4 4 4 4 8 8
24、8 8 12 12 12 16 16 20 24 32 - - - E“ - 30 35 40 45 55 65 75 95 110 130 155 180 240 290 370 450 550 690 860 1 060 - F“ 12.2 17.2 22.2 26.2 34.2 41.2 52.2 70 83 102 127 153 213 261 318 400 501 65 1 800 1 O00 Unit : mm - H 55 60 65 70 90 100 110 130 145 165 200 225 285 333 425 510 610 750 920 1120 - -
25、A 4 1516 - 8 8 8 8 8 12 12 12 12 12 16 16 16 16 20 20 20 24 24 24 - Notes * See 3 . 2 . It should be noted that the nominal bores recommended above 1 O00 are: 1 250,1600,2 O00 and 2 500. * See 3 . 5 . 2 . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Emp
26、loyees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- STDmJIS B 2290-ENGL 1998 m 4933b08 OCb2hZh 659 = 4 B 2290 : 1998 (IS0 1609 : 1986) Table 2 Dimensions of collars for clamped or rotatable flanges Nominal
27、 bore * 10 I 16 20 / 25 32 50 80 125 4 0 63 100 160 200 / 250 320 400 500 630 F* 12.2 17.2 22.2 26.2 34.2 41.2 52.2 70 83 102 127 153 213 261 318 400 501 65 1 - L js16 6 6 6 6 6 10 10 10 10 10 10 10 10 10 15 15 15 20 - - P H14 3 3 3 3 3 5 5 5 5 5 5 5 5 5 7.5 7.5 7.5 10 - 7 B10 1 1 1 1 1 1.5 1.5 1.5
28、1.5 1.5 2.5 2.5 2.5 2.5 2.5 4 4 5 - - S* * hl 1 30 35 40 45 55 65 75 95 110 130 155 180 240 290 370 450 550 690 - - Un - U“ - 15 20 25 30 41) 50 60 80 95 115 140 165 225 275 355 435 535 660 - : mm - W hll 28 33 38 43 53 62 72 92 107 127 150 175 235 285 365 44.2 542 680 - - Notes * See 3 . 2 . It sho
29、uld be noted that the nomi- nal bores recommended above 630 are: 800, 1000, 1250, 1600, 2 O00 and 2 500. * See 3.5.2. * See 3 . 9 . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:33:40
30、MDTNo reproduction or networking permitted without license from IHS -,-,- STDmJIS B 2270-ENGL 1998 I 4733608 0562627 575 5 B 2290 : 1998 (IS0 1609 : 1986) Table 3 Dimensions of rotatable flanges with retaining rings Unit: mm Nominal bore * 16 20 25 32 50 80 125 / / 40 63 1 O0 / 160 zoo 250 320 500 4
31、00 630 - B 40 45 50 55 70 80 90 110 125 145 175 200 260 310 395 480 580 720 - - C H13 - 6.6 6.6 6.6 6.6 9 9 9 9 9 9 11 11 11 11 14 14 14 14 - X 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 1 1 1 2 2 2 2 - Bolts D 6 6 6 6 8 8 8 8 8 8 10 10 10 10 12 12 12 12 - - n 4 4 4 4 4 4 4 4 8 8 8 8 12 12 12 16 16 20 - H - 55 6
32、0 65 70 90 100 110 130 145 165 200 225 285 335 425 5 10 610 750 - K“ - 2 2 2 2 2 3 3 3 3 3 5 5 5 5 5 8 8 10 - - M is16 - 8 8 8 8 8 12 12 12 12 12 16 16 16 16 20 20 20 24 - 9- - 3 3 3 3 3 5.5 5.5 5.5 5.5 5.5 6.5 6.5 6.5 6.5 8.5 10 10 12 - - T H11 - 30.1 35.1 40.1 45.1 55.5 65.5 75.5 95.5 110.5 130.5
33、155.7 180.7 240.7 290.7 370.8 450.8 550.8 691 - V H14 - 32.1 37.1 42.1 47.1 57.5 68.5 78.5 98.5 113.5 133.5 160.7 185.7 245.7 295.7 375.8 458.8 558.8 701 - Y B 10 - 1 1 1 1 1 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 4 4 5 - Notes * See 3 . 2 . It should be noted that the nominal bores recommended abo
34、ve 630 are: 800, 1000, 1 250, 1600, 2 O00 and 2 500. In the absence of a standard for the drawn wire used for the rings, the following tolerances are suggested: * kO.02 mm for K = 2 mm t 0.025 mm for K = 3.5 mm and 5 mm f0.03 mm for K = 8 mm * In no case should the surface of the rotatable flange pr
35、otrude past the collar face when assembled. The diameter of the retaining ring shall be compatible with dimen- sion V. Remarks : Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:33:40 MDT
36、No reproduction or networking permitted without license from IHS -,-,- 6 B 2290 : 1998 (IS0 1609 : 1986) Nominal bore II1II1 10 I 16 20 32 50 / / 25 40 63 80 125 500 800 100 160 200 320 / 250 400 630 1 o00 4 Linear sealing loads Fig. 1 shows the detail of a bolt assembly with O-ring, the values give
37、n in table 4 have been calculated for each bolted flange under the following conditions of use. 0 is the resulting linear load, in newtons per millimetre, exerted on a unit length of an elastomer O-ring by the uniform tightening of n bolts to a stress of 200 N/mm2, the mean diameter of the sealing r
38、ing, before compression, being equal to (dl + d2) mm. d Linear sealing load shall be calculated according to the following formula. 200 ns o = n (di + dz) where, s : cross-sectional area of the core of the bolt (mm2) di : inside diameter of the sealing ring (mm) dz : cross-sectional diameter of the
39、sealing ring before compression (mm) lypical values of Q Nimm 185 154 132 116 177 146 124 96 164 138 184 157 174 143 162 179 1 4 6 150 14.4 156 Table 4 Linear sealing loads Fig. 1 Detail of a bolt assembly with O-ring 5 Bores for vacuum flanges and required outside tube diameters Bores for vacuum fl
40、anges and required nominal diameter of tube shall be as given in table 5 and table 6. Bores for vacuum flanges shall be as given in table 5, and bore for vacuum flange with recess shall be as given in table 6. l Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=
41、IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- STD=JIS B 2290-ENGL 1998 E 4933608 0562629 368 7 B 2290 : 1998 (IS0 1609 : 1986) Table 5 Bores for vacuum Table 6 Bores for vacuum flanges flanges
42、 with recess Unit : mm Unit : mm Nominal bore 10 16 I 20 / 25 32 125 = , , O 320 ,o, 40 50 80 63 1 O0 160 250 400 630 800 1 O00 A* 10 16 21 24 34 41 51 70 83 102 127 153 213 261 318 400 501 651 800 1 O00 Note * Dimension A is given for guidance only and depends on the tube and the method of welding.
43、 Nominal bore 25 40 22.2 41.2 52.2 Note * Tolerance for Al: +0.2 mm O This recess permits the use of centrally located sealing ring carriers. 6 Method for tubes of vacuum flanges from IS0 1127 or, for diameters greater than 600 mm, from IS0 4200. The values given in table 7 are taken Copyright Japan
44、ese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- 8 B 2290 : 1998 (IS0 1609 : 1986) Table 7 Tubes for vacuum flanges Unit:
45、mm Nominal bore P 16 20 / 25 32 100 .) N I 50 63 125 / 160 zoo 250 320 / / 4.00 soo 630 800 lo00 U?X outsidi iameter“ 14 20 25 28 38 u.5 57 76.1 88.9 108 133 159 219.1 267* 323.9 4 0 6 . 4 508 660.4 812.8 1016 hbe thick. ness * 2 2 2 2 2 2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.6 5 6.3 8 Notes *
46、The values of the outside diameters and thickness of the tube are included for guidance only. * Although this value is not mentioned in IS0 1127, it was adopted instead of 273 with a view to allow- ing the seal positioning. Copyright Japanese Standards Association Provided by IHS under license with
47、JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- STDOJIS B 2290-ENGL 1998 m 4933608 05b2633 Tlb E B 2290 : 1998 (IS0 1609 : 1986) 9 Annex (informative) Flanges for maintenance Introdu
48、ction This Annex describes dimensions of vacuum flanges used for the pur- pose of maintenance specified in JIS B 2290 : 1968 Vacuum flanges because the said flanges have been used and infiltrated into many users in the industries, and does not constitute a part of this Standard. 1 Dimensions 1.1 in Annex table 1. Standard dimensions Standard dimensions of the flange shall be