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GB/T 12221-2005 English PDF (GBT12221-2005)

GB/T 12221-2005 English PDF (GBT12221-2005)

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GB/T 12221-2005: Metal valves -- Face to face, end to end, center to face and center to end dimensions

This Standard specifies the basic series of face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of flanged joint valves, welded end valves, wafer type connection valves, female thread connection valves, male thread connection valves, and the permissible variations of structural dimensions.
GB/T 12221-2005
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 23.060
J 16
Replacing GB/T 12221-1989, GB/T 15188.1~15188.4-1994
Metal Valves - Face to Face, End to End, Center
to Face and Center to End Dimensions
(ISO 5752.1982, Metal Valves for Use in Flanged Pipe Systems -
Face-to-face and centre-to-face Dimensions, MOD)
ISSUED ON. FEBRUARY 21, 2005
IMPLEMENTED ON. AUGUST 1, 2005
Issued by. General Administration of Quality Supervision,
Inspection and Quarantine of the People's Republic of
China;
Standardization Administration of the People's
Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Definitions ... 5
4 Structure Dimensions and Tolerances ... 6
Foreword
This Standard modifies and adopts ISO 5752.1982 "Metal Valves for Use in Flanged Pipe Systems - Face-to-face and centre-to-face Dimensions". Compared with ISO 5752.1982, the main differences in this Standard are as follows.
?€? Structure and drafting rules of this Standard are in accordance with GB/T 1.1-2000;
?€? This Standard adopts some definitions in Chapter 2 of ISO 5752.1982;
?€? Chapter 4 "Terminology" of ISO 5752.1982 was deleted from this Standard. Compared with GB/T 12221-1989, the main changes in this Standard are as follows. ?€? Standard name is changed; the scope of application is extended from flange connection to welded end, wafer type, female thread and male thread.
?€? Add the basic structural lengths of welded ends, wafer type valves, female threads and male threads, AND structural length dimensions of various valves; ?€? Valve dimensions with flanged joint adopt ISO 5752.1982;
?€? Basic series dimensions in Table 1 of original standard were modified. series 6 and 17 (no available data) were deleted; series 25, which is not applicable to flanged joint, was placed to the basic series dimensions of wafer type
connecting valves;
?€? Dimension list of same-type series gate valves in Table 2 of original standard was deleted.
This Standard replaces GB/T 12221-1989 "Metal Valves for Use in Flanged Pipe Systems - Face-to-Face, and Center-to-Face Dimensions" and GB/T 15188.1 ~ 15188.4-1994 "Face-to-Face, Centre-to-Face, End-to-End and Centre-to-End Dimensions of Valves".
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of the National Technical Committee on Valves of Standardization Administration of China (SAC/TC 188).
Drafting organizations of this Standard. Hefei General Machinery Research Institute, Hubei Hongcheng General Machinery Co., Ltd., Shanghai Research Institute of General Machinery Co., Ltd., CNNC SUFA Technology Industry Co., Ltd., Zhejiang Wuzhou Valve Co., Ltd. AND Shenyang Shengshi High and Medium Pressure Valve Co., Ltd.
Drafting staffs of this Standard. Wang Xiaojun, Wang Hongyun, Kong Biaolong, Chen Jianping, Zheng Zuhui, Zheng Yunhai, Liu Xiaochun and Ye Qin.
The previous editions replaced by this Standard are as follows.
?€? GB/T 12221-1989, GB/T 15188.1 ~ 15188.4-1994.
Metal Valves - Face to Face, End to End, Center to
Face and Center to End Dimensions
1 Scope
This Standard specifies the basic series of face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of flanged joint valves, welded end valves, wafer type connection valves, female thread connection valves, male thread connection valves, and the permissible variations of structural dimensions.
This Standard is applicable to the face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of gate valves, stop valves, ball valves, butterfly valves, plug valves, diaphragm valves and check valves with nominal pressure (PN) ??? 42.0 MPa and nominal diameter of DN 3 mm ~ DN 4 000 mm.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this Standard. For dated references, the subsequent amendments or revisions of these publications do not apply. However, parties who enter into agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below.
GB/T 1047 Pipework Components - Definition and Selection of DN (Nominal Size) (GB/T 1047-2005, ISO 6708.1995, MOD)
GB/T 1048 Pipework Components - Definition and Selection of PN (GB/T
1048-2005, ISO 7268.1996, MOD)
3 Definitions
3.1 Through way type of valves face to face, end to end, center to face and center to end dimensions
The distance between the two planes perpendicular to the valve axis, located at the extremities of the valve-body end ports.
3.2 Angle type of valves face to face, end to end, center to face and center to end dimensions [Translator. for ease of reading, hereafter ?€?face to face, end to end, center to face and center to end dimensions?€? is abbreviated as structure dimensions] 4.3.5 The basic series of female thread valves?€? structure dimensions are given in Table 5. Table 5 Female Thread Valves?€? Structure Dimensions ?€? Basic Series
Dimensions in millimetres
Nominal size
DN
Basic series
N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13 N14 N15 N16 N17 N18
Structure dimensions
?€? ?€? ?€? ?€?
?€? ?€?
?€? ?€? ?€?
?€? ?€? ?€? ?€? ?€? ?€?
10 48 56 80 80 80 80 80 80
15 42 50 52 56 60 65 65 65 68 80 90 90 90 90 90 90 90 90
20 45 60 60 67 65 70 75 85 78 90 100 100 100 100 100 100 100 100
25 52 65 70 78 75 80 90 110 86 110 115 120 110 120 120 110 120 120
32 55 75 80 88 85 90 105 120 100 130 130 140 120 130 140 120 140 130
40 60 85 86 104 95 100 120 140 106 150 150 170 135 140 170 135 170 150
50 70 95 104 120 110 110 140 165 130 170 180 200 170 170 200 155 180 170 ?€? ?€?
120 130 165 203
?€? ?€? ?€? ?€? ?€? ?€? 80 90 130
?€? ?€? ?€?
100 110 145 ?€? 300 ?€?
Note 1. It is applicable to through way type and angle type valves.
Note 2. Tolerances of structure dimensions is ??1.6 mm.
4.3.8 Wafer knife gate valves?€? structure dimensions are given in Table 8. Table 8 Wafer Knife Gate Valves?€? Structure Dimensions
Dimensions in millimetres
Nominal size
DN
Nominal pressure PN ??? 2.0 MPa
Structure dimensions
65 ?€?
Basic series J16 J17 J18
Note. Tolerances of structure dimensions is ??1.6 mm.
4.3.9 Welded end gate valves?€? structure dimensions are given in Table 9. Table 9 Welded End Gate Valves?€? Structure Dimensions
Dimensions in millimetres
Nominal size
DN
Nominal pressure PN (MPa)
1.0 ~ 2.0 2.5 ~ 5.0 6.3 10.0 15.0, 16.0 25.0 32.0, 42.0
Structure dimensions
Short Long Short Long Short Long Short Long
102 ?€? ?€?
?€? ?€? ?€? ?€? ?€?
15 108 140 165 165 264
20 117 152 190 190 273
25 127 165 216 133 216 140 254 140 254 186 308
32 140 178 229 146 229 165 279 165 279
40 165 190 241 152 241 178 305 178 305 384
50 216 216 292 178 292 216 368 216 368 279 451
65 241 241 330 216 330 254 419 254 419 330 508
80 283 283 356 254 356 305 381 305 470 368 578
100 305 305 406 305 432 356 457 406 546 457 673
125 381 381 457 381 508 432 559 483 673 533 794
300 502 635 850 502 635 850 502 850 762 838 965 1130 1422
350 572 762 980 572 762 980 762 980 826 889 1029 1257
400 610 838 1100 610 838 1100 838 1100 902 991 1130 1384
?€? ?€? ?€?
978 1092 1219
500 711 991 711 991 1054 1194 1321
550 ?€? 1092 ?€? 1092 1143 1295 ?€?
600 813 1143 813 1143 1232 1397 1549
1245 1308 1448
700 1346 1346 1397 1549
750 1397 1397 1524 1651
800 1524 1524 1651 1778
850 1626 1626 1778 1930
900 2083 2083 1880 2083
Basic
series H16 H17 H18 H16 H17 H18 H2 H18 H3 H5 H7 H9 H11
4.3.13 Welded end plug valves?€? structure dimensions are given in Table 13. Table 13 Welded End Plug Valves?€? Structure Dimensions
Dimensions in millimetres
Nominal
size
DN
Nominal pressure PN (MPa)
1.0 ~
2.0 2.5, 4.0, 5.0 6.3 10.0 15.0 25.0
32.0,
42.0
Structure dimensions
Short Long Short Long
?€? ?€?
?€? ?€?
?€? ?€? ?€?
25 190 216 216 254 254 308
32 ?€? 229 229 279 279 349
40 241 241 241 305 305 384
50 267 267 283 292 292 368 368 451
65 305 305 330 330 330 419 419 508
80 330 330 387 356 356 381 470 578
100 356 356 457 406 559 432 457 546 673
125 381 381 ?€? 457 ?€? 508 559 673 794
150 457 457 559 495 711 559 610 705 914
200 521 521 686 597 845 660 737 832 1022
250 559 559 826 673 889 787 838 991 1270
300 635 635 965 762 1016 838 965 1130 1422
889 ?€? 1257
400 838 902 991 1130 1384
450 914 978 1092 ?€? 1537
500 991 1054 1194 1321 1664
Table 17 Wafer Type Swing Check Valves?€? Structure Dimensions
Dimensions in millimetres
Nominal size
DN
Nominal pressure PN (MPa)
1.0 ~ 2.0 2.5 ~ 5.0 6.3 10.0 15.0, 16.0 25.0 32.0, 42.0
Structure dimensions
50 60 60 60 60 70 70 70
65 66 66 66 66
100 79 79 102 102 105
150 98 98 137 137 159 159 159
200 127 127 161 161 206 206 206
250 146 146 213 213 241 248 254
300 181 181 229 229 292 305 305
350 184 222 273 273 356 356
400 190 232 305 305 384 384
450 203 264 362 362
500 219 292 368 368 533
600 222 317 394 438 495 559
750 305 368 460 505
?€? ?€? 900 368 483 635 635
1200 524 629 ?€? ?€?
Basic ser...

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