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Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.
इंटरनेट मानक
“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda
“Invent a New India Using Knowledge”
“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru
“Step Out From the Old to the New”
“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan
“The Right to Information, The Right to Live”
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”
“Invent a New India Using Knowledge”
है”ह”ह
IS 9884 (1981): Dimensions for ferrous valves - face toface and end to end [MED 17: Chemical Engineering Plantsand Related Equipment]
_ : .,.:
UDC 621’646’2 : (609-1 ) : 008’78 .
Indian Standard
DIMENSIONS FOR FERROUS VALVES - FACE-TO-FACE AND END-TO-END
‘1. Scope- Covers face-to-face and centre-to-face dimensions of flanged valves, as well as end-to- end and centre-to-end dimensions of butt welding~end valves, to permit a degree of dimensional interchangeability.
2. Pressure Rating -The range of pressure rating is Class 125 - 150- 250 -3OO- 600 - 900 - 1500 and 2500.
3. Nominal Size- The range of nominal size in DN values is IO - 15 - 20 - 25 - 32* - 40 - 56 -65*-80-tOO-125- 150-200-250 -3OO-35O-4OO-45O-5OO-6OO-7OO-6OO-9OO - 1000.
4. Terminology
4.1 Face-to-Face Dimensions ( for Straight Pattern Valves ) -The distance, expressed in millimetres, between the two planes perpendicular to the valve axis located at the extremities of the body end ports as specified in Tables 1 to 4.
4.2 Centre-to-Face Dimensions ( for Angle Pattern Valves ) - The distance expressed in millimetres, between the plane located at the extremity of either body end port and perpendicular to its axis and the other body end port axis.
4.3 @d-to-End Dimensions (for Straight Pattern Valves) - The distance, expressed in millimetres, between the two planes perpendicular to the valve axis located at the root faces of the welding,lips.
4.4 Centre-to-End Dimensions ( for Angle Pattern Valves ) - The distance, expressed in millimetres, between the plane located at the root faces and perpendicular to its axis and the other body end port axis.,
5. Standard Facings
5.1 The face-to-face dimensions given in the tables are for valves having the standard facings as indicated below:
a) Plain flat face - Cl.125 cast iron valves.
b) I.6 mm raised face- Cl.250 cast iron valves, Cl.150, Cl, 300 steel valves.
c) 6’4 mm raised face - Cl.600, Cl.900, Cl.1500, Cl.2500 steel valves.
Face-to-face dimensions given in tables are inclusive of the raised face thicknesses,
6. Special Facings -When special facings *are required reference shall be made to Indian Standard ‘ Steel pipe flange and flanged fittings ( under preparation) ‘. Details of additional requirements in respect of ring joint end flanges are given in Appendix A to obtain new face-to-face dimensions for valves with such a joint.
7. Dimensions and Tolerances - The face-to-face or centre-to-face and end-to-end or centre-to-end, as appropriate, for the valves included in this Indian Standard shall be In accordance with Tables 1 to 5 and tolerances shall be in accordance with Table 6.
*Non-preferred sizes.
I .
INDIAN STANDARDS INSTIT~UTION MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MAR6
NEW DELHI 110002
IS : 9884 - 1981
TABLE 1 DlMENStONS FOR GATE VALVES
( Clauses 4.1 and 7~)
All dimensions in millimetres.
Nominal Size
(DR)
IO
16
20
25
32
40
50
65
80
100
150
200
250
300
350
400
450
500
600
700
800
900
1000
Face-to-Face and End-to-End Dimensions
Class Class Class Class Class Class Class Class 125/150 150 250 300 600 900 1500 2500
A B A A&B A&B A&B A&B A&B
102 102
108 108 140 140 165 264
117 117 152 152 190 273
127 127 165 165 216 254 254 808
140 140 178 178 229 279 279 349
165 166 190 190 241 305 305 384
178 216 216 216 292 368 368 451
190 241 241 241 330 419 419 508
203 283 283 283 358 381 470 678
229 305 305 305 432 457 546 673
267 403 403 403 559 610 705 914
292 419 419 419 660 737 832 1022
330 457 457 467 787 038 991 1270
356 502 502 502 838 965 1130 1422
381 572 572 762 889 1129 1257
406 610 610 c 838 991 1130 1384
432 660 660 914 1092 1219 1537
457 711 711 991 1194 1321 1664
508 813 787 1143 1397 1549 1949
610 991
660 -
711 1219
811
2
IS : 9884 - 1981
TABLE 2 DIMENSIONS FOR PLUG VALVE AND BALL VALVES
( Clauses 4.1 and 7 )
All dimensions in millimetres.
Uomina Size (DN)
I
IO 102 103
15 108 130
29 117 130
25 127 140
32 140 165
40 165 165
50 178 203
66 190 222
30 203 241
100 229 305
150 267 394
200 292 457
250 330 533
300 356 610
350 381 686
400 406 762
450 432 864
500 457 914
600 508 1067
Cl8 12E
Short A
Ll Medium
A
Class 150*/300*
B
267
305
330
356
457
521
559
635
762
838
914
991
1 143
Cl c"ot
Class Class 1501 250/300 250/300
Short Long A A&B A B
191
216
241
233
305
403
419
457
502
572
610
660
711
813
191
216
241
283
305
457
521
559
635
762 c
838
914
991
1 143
Class Class Class 900 1500 2500
A&B A & Bfi A & B$
Face-to-Face and End-to-End Dimensions
140
152
165
178
190
216
241
283
305
403
419
457
502
762
838
914
991
1 143
229
241
292
330
356
432
559
660
787
838
889
991
1092
1194
1397
254
279
305
368
419
381
457
610
737
838
965
159
248
254
279
305
368
419
470
546
705
832
991
1130
1130 1384
*For butt welding and plug valves only. DN 350 and above for class 300 butt welding end plug valves only.
tButt welding end ball valves only.
$For butt welding end plug valves only.
349
334
451
608
678
673
914
1022
1270
1 422
‘I
3
IS: 9884 - 1981
TABLE 3 DIMENSIONS FOR GLOBE VALVES AND CHECK VALVES (STRAIGHT PATTERN )
( Clauses 4.1 and 7 )
BUTT WELDING END I=! l-----B-----I
Nominal Size
(DN)
15
20
25
32
40
50
65
80
100
150
200
250
300
350
400
450
500
600
700
800
900
1 000
Class 125
A&B
I-
108
117
127
140
165
203
216
241
292
356
495
622
698
787
914
978
978 j
1 295
1 448
108
117
127
140
165
203
216
241
292
406*
495
622
698
787
914*
978
~978
1 295
1 448
Face-to-Face and End-to-End Dimensions
-- I
Class i Class Class Class 250 300 600 900
A&B A&B A&B A&B
__-
152 152 165
170 170 190
216 216 ~216 254
229 229 229 279
241 241 241 305
267 267 292 368
292 292 330 419
318 318 356 381
356 356 432 457
444 444 559 610
533 559 660 737
622 622 787 838
711 1 711 838 965
838 / 838 889 1 029
864 ~ 864 991 1 130
978 978 i 1092 I 1219
1016
1 346
1 I
1016 1194 ( 1321
1346 1397 1 549
1 499 j 1 499
1956 1 956 2 083 2 083
Class 150
A&B
Class 1500
A&B
254
279
305
388
419
470
546
705
832
991
1 130
1 257
1 384
1 537
1 664
1 943
Class 2500
A&B
264
273
308
349
384
451
508
578
673
9l4
1 022
1270
1 422
Note 1 - Face-to-face for class 150 Swing Check Valves for DN 150 is 356 and for DN 400 is 864.
Note 2 - Globe stop valves and globe lift check valves are generally not made in nominal sizes above 400 mm.
* For globe valves only.
4
IS : 9884 - 1981
TABLE 4 DIMENSIONS FOR GLOBE AND LIFT TYPE CHECK VALVES (ANGLE PATTERN )
( Clauses 4.1 and 7 )
Nominal Size
(DN)
15
20
25
32
40
50
-65
80
100
150
200
250
300
350
400
450
-
All dimensions in millimetres.
Class 125 D
57
84
70
76
83
102
108
121
146
178
248
311
349
394
457
483
7-
Centre-to-Face and Centre-to-End Dimensions
57
64
70
76
83
102
108
121
146
203
248
311
349
394
457
483
-i- Class
150 D&E
Class Class 250 300 D D&E
76
90
102
108
114
133
146
159
178
222
267
311
356
76
90
102
108
114
133
146
159
178
222
279
311
c 356
Class 600
D&E
83
95
108
114
121
146
165
178
216
279
330
394
419
I
--
Class Class Class 900 1500 2500
D&E D&E D&E
-
--
114
127
140
152
184
210
191
229
305
368
419
483
514
660
737
108
114
127
140
152
184
210
235
273
352
416
495
565
629
132
137
154
175
192
225
254
337
457
511
635
711
5
IS : 9884 - 1981
TABLE 5 DIMENSIONS FOR GLOBE VALVES AND CHECK VALVES ( SHORT PATTERN )
( Clause 7 )
BUTT WELDING END
All dimensions in millimetres.
Nominal Size (DN)
Class 600
End-to-End Dimensions
Short Pattern Class 1500
Class 900
Class 2500
B B B B
25 133 140 140 136
32 146 165 165 232
40 162 178 -178 232
50 178 216 216 279
66 216 264 254 330
80 254 305 305 368
100 305 356 406 457
150 457 508 559 610
200 684 660 711 762
250 711 787 884 914
300 818 914 991 1041
350 889 991 1067 1118 c
400 991 1092 1194 1245
450 1092 1348 1397
500 1194 1473
600 1397
Note 1 -This table is applicable to (a1 gate valves and DN 60 onwards for check valves, (b) globe Valves ln class 600 and class 900 only, and (c) pressure seal/flange less bonnet valves.
Note 2-These could be applied to valves with flanged bonnets at the option of the manufacturer.
6
IS : 9884 - 1981
TABLE 6 TOLERANCES
( Clause 7 )
All dimensions in millimetres.
.wFace-to-Face or Centre-to-Face Dimensions of Unlined Valves
Tolerance
Over Including
0 250 f2
250 500 zt3
500 800 f4
800 1 000 f5
1000 1 600 f6
1600 2 250 f6
Tolerance on centre-to-face dimension are one half (l/2) of those listed in Table 6.
APPENDIX A
( Clause 6 )
ADDITIONAL LENGTHS FOR VALVES WITH RING dOlNT FLANGES
A = the raised face flange face-to-face dimensions, I
For paraltel flanged valves the following values of X must be added to the raised face flange face-to-face dimensions for flanges suitable for octagonal section nor oval ring section ring joints, For angle pattern valves, one-half of the value X must be added to the dimensions for centre of valve body-to-raised faced dimensions.
Nominal Size
(DN)
Class 150 Class 300 Class 600 Class 900 Class 1500 Class 2500
X X X X X X
_____
EXPLANATORY NOTE
In the preparation of this standard assistance has been derived from ANSI & 1 6.10 and lSO/DlS 5752.
7
Printed at Arcee Press, New Delhi , India