17
Cast iron RubberLined
Glass
PlasticLined
%Open
Cv Kv Cv Kv
Cv Kv Cv
Kv
DN
100
B O D Y M A T E R I A L / L I N I N G
100
90
80
70
60
50
40
30
20
10
0
315
302
289
277
264
220
176
132
88.20
44.10
0
270
259
248
237
226
189
151
113
76
38
0
252
247
242
229
209
184
151
113
68
28
0
216
212
207
196
179
158
129
97
50
24
0
336
322
309
295
282
235
188
141
94.10
47.00
0
288
276
265
253
242
201
161
121
81
40
0
270
259
248
237
226
189
151
113
75.60
37.80
0
231
222
213
203
194
172
129
97
65
32.40
0
Cast iron RubberLined
Glass
PlasticLined
%Open
Cv Kv Cv Kv
Cv Kv Cv
Kv
DN
125
B O D Y M A T E R I A L / L I N I N G
100
90
80
70
60
50
40
30
20
10
0
420
403
386
369
352
294
235
176
117
59
0
360
345
331
316
302
252
201
151
100
49
0
363
348
333
319
304
254
203
152
101
51
0
311
298
285
273
261
218
174
130
87
44
0
440
422
404
387
369
308
246
184
123
62
0
377
362
346
332
316
264
211
158
105
53
0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Cast iron RubberLined
Glass
PlasticLined
%Open
Cv Kv Cv Kv
Cv Kv Cv
Kv
DN
150
B O D Y M A T E R I A L / L I N I N G
100
90
80
70
60
50
40
30
20
10
0
605
580
556
532
508
423
338
254
169
85
0
519
497
477
456
435
363
290
218
145
73
0
484
474
465
440
402
353
290
218
131
53
0
415
406
399
377
345
303
249
187
112
45
0
630
604
579
554
529
441
352
264
176
88
0
540
518
496
475
453
378
302
226
151
75
0
505
484
464
444
424
353
282
212
141
71
0
433
414
398
381
363
303
242
182
121
61
0
Cast iron RubberLined
Glass
PlasticLined
%Open
Cv Kv Cv Kv
Cv Kv Cv
Kv
DN
200
B O D Y M A T E R I A L / L I N I N G
100
90
80
70
60
50
40
30
20
10
0
1300
1248
1196
1144
1092
910
728
546
364
182
0
1114
1070
1025
981
936
780
624
468
312
156
0
1309
1256
1204
1151
1099
916
733
549
366
183
0
1122
1077
1032
987
942
785
628
471
314
157
0
1320
1267
1214
1161
1108
924
739
554
369
184
0
1131
1086
1041
995
950
792
633
475
316
158
0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Cast iron
RubberLined
Glass
%Open
Cv
Kv
Cv
Kv
Cv
Kv
DN
250
B O D Y M A T E R I A L / L I N I N G
Cv
is flow inUSgpm through valve at
∆
Pof 1psi
Kv
is flow inm
3
/hr through valve at
∆
Pof 1bar
Note: DifferingCv &Kv rating can be derived, depending on the
method used for testing. The tables above are based on British
Standards 1042 and EN 605314/IEC 534.2.3 and show flow in
US gallons per minute and cubicmetres per hour.
100
90
80
70
60
50
40
30
20
10
0
1980
1900
1821
1742
1663
1386
1108
831
554
277
0
1697
1629
1561
1493
1425
1188
950
712
475
237
0
2000
1920
1840
1760
1679
1400
1120
839
560
280
0
1714
1646
1577
1509
1439
1200
960
719
480
240
0
2100
2015
1932
1848
1763
1470
1176
881
588
294
0
1800
1727
1656
1584
1511
1260
1008
755
504
252
0
Cast iron
RubberLined
Glass
%Open
Cv
Kv
Cv
Kv
Cv
Kv
DN
300
B O D Y M A T E R I A L / L I N I N G
100
90
80
70
60
50
40
30
20
10
0
3700
3552
3404
3256
3107
2590
2072
1553
1036
518
0
3171
3045
2917
2791
2663
2220
1776
1331
888
444
0
3750
3600
3450
3300
3149
2625
2100
1574
1050
525
0
3214
3086
2957
2829
2699
2250
1800
1349
900
450
0
3880
3724
3569
3414
3259
2716
2172
1629
1086
543
0
3326
3191
3059
2926
2793
2327
1861
1396
931
465
0
Cast iron
RubberLined
Glass
%Open
Cv
Kv
Cv
Kv
Cv
Kv
DN
350
B O D Y M A T E R I A L / L I N I N G
100
90
80
70
60
50
40
30
20
10
0
3700
3552
3404
3256
3107
2590
2072
1553
1036
518
0
3171
3045
2917
2791
2663
2220
1776
1331
888
444
0
3750
3600
3450
3300
3149
2625
2100
1574
1050
525
0
3214
3086
2957
2829
2699
2250
1800
1349
900
450
0
3880
3724
3569
3414
3259
2716
2172
1629
1086
543
0
3326
3191
3059
2926
2793
2327
1861
1396
931
465
0
