 |
Capacity Charts for CALIFORNIA Valves
For determining approximate pressure drops at selected natural gas pressures (@ 60° F) & loads (in SCFH = standard cubic feet per hour) |
| |
|
Capacities
for CALIFORNIA Valves at 8-IWC inlet pressure |
| Pressure
drop (IWC) |
Load (SCFH) for given valve size |
| ¾" Models |
1" Models |
1-1/4" Models |
1-1/2" Models |
2" Models |
3" Models |
4" Models |
6" Models |
| 0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.20
0.30
0.40
0.50 |
110
156
191
221
247
270
292
312
331
349
494
605
698
781 |
215
305
373
431
482
528
571
610
647
682
965
1181
1364
1525 |
336
476
583
673
753
825
891
952
1010
1065
1506
1844
2129
2380 |
531
751
920
1063
1188
1302
1406
1503
1594
1681
2377
2911
3361
3757 |
863
1220
1495
1726
1930
2114
2283
2441
2589
2729
3860
4726
5457
6101 |
1768
2501
3063
3537
3954
4332
4679
5002
5305
5592
7908
9684
11181
12499 |
2526
3573
4376
5053
5649
6188
6684
7146
7579
7989
11297
13834
15973
17856 |
9312
13169
16128
18623
20821
22808
24636
26336
27934
29444
41636
50987
58868
65808 |
|
Capacities for ¾" CALIFORNIA
Valve Models 300, VB-300, & VT-300 (rated @
7 psi), and Models 310, VB-310, & VT-310 (rated
@ 60 psi)
CV = 21 (equivalent length is
2.7’ of ¾" pipe) |
| Pressure
drop (IWC) |
Load
(SCFH) for given inlet pressure |
| 8
IWC |
14
IWC |
3
PSI |
10
PSI |
15
PSI |
20
PSI |
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.0
3.0
4.0
5.0 |
362
512
627
724
809
886
957
1,023
1,085
1,144
1,616
1,976
2,279
2,545 |
365
516
631
729
815
893
964
1,031
1,093
1,152
1,627
1,990
2,296
2,564 |
394
556
681
787
880
963
1,040
1,112
1,180
1,243
1,756
2,149
2,479
2,769 |
465
657
805
930
1,039
1,138
1,229
1,314
1,394
1,469
2,076
2,541
2,932
3,275 |
510
721
883
1,109
1,140
1,248
1,346
1,441
1,529
1,611
2,277
2,787
3,216
3,594 |
551
779
954
1,102
1,232
1,349
1,457
1,558
1,652
1,742
2,462
3,013
3,470
3,886 |
|
Capacities for 1" CALIFORNIA
Valve Models 301, VB-301, & VT-301 (rated @
7 psi), and Models 311, VB-311, & VT-311 (rated
@ 60 psi)
CV = 41 (equivalent length is
2.4’ of 1" pipe) |
| Pressure drop (IWC) |
Load
(SCFH) for given inlet pressure |
| 8 IWC |
14 IWC |
3 PSI |
10 PSI |
15 PSI |
20 PSI |
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.0
3.0
4.0
5.0 |
707
1,000
1,224
1,413
1,580
1,731
1,869
1,998
2,119
2,233
3,154
3,858
4,450
4,969 |
712
1,007
1,233
1,423
1,591
1,743
1,882
2,012
2,134
2,249
3,177
3,886
4,482
5,005 |
768
1,086
1,330
1,536
1,717
1,881
2,031
2,171
2,303
2,427
3,429
4,196
4,840
5,406 |
908
1,283
1,572
1,815
2,029
2,222
2,400
2,566
2,721
2,868
4,053
4,961
5,724
6,395 |
995
1,407
1,724
1,990
2,225
2,437
2,632
2,814
2,984
3,145
4,446
5,442
6,280
7,017 |
1,076
1,521
1,863
2,151
2,405
2,634
2,845
3,042
3,226
3,400
4,806
5,883
6,790
7,588 |
| Capacities for 1-1/4"
CALIFORNIA Valve Models 302, VB-302, &
VT-302 (rated @ 7 psi), and Models 312, VB-312, &
VT-312 (rated @ 60 psi)
CV = 64 (equivalent length is
3.7’ of 1-1/4" pipe) |
| Pressure
drop (IWC) |
Load (SCFH) for given inlet pressure |
| 8
IWC |
14
IWC |
3
PSI |
10
PSI |
15
PSI |
20
PSI |
0.1
0.2
0.3
0.5
0.6
0.7
0.8
0.9
1.0
2.0
3.0
4.0
5.0 |
1,103
1,560
1,911
2,466
2,701
2,917
3,118
3,307
3,486
4,924
6,023
6,946
7,757 |
1,111
1,571
1,924
2,484
2,721
2,938
3,141
3,331
3,511
4,959
6,066
6,996
7,813 |
1,199
1,696
2,077
2,681
2,936
3,171
3,390
3,595
3,789
5,353
6,549
7,555
8,438 |
1,417
2,003
2,453
3,167
3,469
3,747
4,005
4,248
4,477
6,327
7,743
8,935
9,982 |
1,554
2,197
2,690
3,473
3,804
4,109
4,392
4,658
4,910
6,940
8,494
9,802
10,953 |
1,679
2,375
2,908
3,764
4,112
4,441
4,748
5,036
5,308
7,502
9,184
10,599
11,844 |
| Capacities for 1-1/2"
CALIFORNIA Valve Models 303, VB-303, &
VT-303 (rated @ 7 psi), and Models 313, VB-313, &
VT-313 (rated @ 60 psi)
CV = 101 (equivalent length is
4.4’ of 1-1/2" pipe) |
| Pressure
drop (IWC) |
Load (SCFH) for given inlet pressure |
| 8
IWC |
14
IWC |
3
PSI |
10
PSI |
15
PSI |
20
PSI |
0.1
0.2
0.3
0.5
0.6
0.7
0.8
0.9
1.0
2.0
3.0
4.0
5.0 |
1,741
2,462
3,015
3,892
4,263
4,604
4,921
5,219
5,501
7,770
9,505
10,962
12,241 |
1,754
2,480
3,037
3,920
4,293
4,637
4,956
5,256
5,540
7,826
9,573
11,041
12,330 |
1,893
2,676
3,277
4,230
4,633
5,004
5,349
5,673
5,979
8,448
10,336
11,922
13,316 |
2,236
3,162
3,872
4,888
5,474
5,913
6,320
6,703
7,065
9,985
12,220
14,100
15,753 |
2,452
3,467
4,246
5,481
6,004
6,484
6,931
7,351
7,749
10,952
13,495
15,469
17,825 |
2,650
3,748
4,590
5,924
6,490
7,009
7,493
7,947
8,376
11,840
14,493
16,727
18,691 |
| Capacities
for 2" CALIFORNIA Valve Models 314, VB-314,
& VT-314 (NPT), and Models 314F, VB-314F, &
VT-314F (flanged) (rated @ 60 psi)
CV = 164 (equivalent length is
4.6’ of 2" pipe) |
| Pressure drop (IWC) |
Load
(SCFH) for given inlet pressure |
| 8 IWC |
14 IWC |
3 PSI |
10 PSI |
15 PSI |
20 PSI |
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.0
3.0
4.0
5.0 |
2,828
3,998
4,896
5,653
6,320
6,922
7,476
7,991
8,475
8,932
12,617
15,434
17,800
19,877 |
2,848
4,027
4,931
5,693
6,365
6,971
7,529
8,048
8,535
8,996
12,707
15,545
17,928
20,020 |
3,073
4,346
5,322
6,144
6,869
7,524
8,126
8,686
9,212
9,709
13,717
16,783
19,359
21,622 |
3,630
5,134
6,287
7,259
8,115
8,889
9,601
10,263
10,885
11,473
16,213
19,842
22,895
25,579 |
3,981
5,630
6,894
7,960
8,899
9,748
10,529
11,255
11,937
12,582
17,783
21,766
25,118
28,066 |
4,303
6,085
7,452
8,605
9,620
10,537
11,381
12,166
12,904
13,601
19,225
23,533
27,160
30,350 |
Capacities for 2.5" CALIFORNIA Valve Models 318, VB-318, &
VT-318 (NPT), and Models 318F, VB-318F, & VT-318F
(flanged) (rated @ 60 psi)
CV = 236 (equivalent length is
8’ of 2.5" pipe) |
| Pressure drop |
8 IWC |
14 IWC |
3 PSI |
5 PSI |
10 PSI |
20 PSI |
60 PSI |
| IWC |
PSI |
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.0
3.0
4.0
5.0 |
0.0036
0.0072
0.0108
0.0144
0.0180
0.0216
0.0252
0.0288
0.0324
0.0360
0.0720
0.1080
0.1440
0.1800 |
4,066
5,750
7,041
8,130
9,088
9,954
10,751
11,492
12,187
12,845
18,144
22,194
25,597
28,583
|
4,096
5,791
7,092
8,188
9,154
10,026
10,828
11,574
12,275
12,937
18,274
22,355
25,782
28,791 |
4,419
6,249
7,653
8,835
9,877
10,819
11,685
12,490
13,246
13,962
19,724
24,133
27,838
31,091 |
4,662
6,593
8.074
9,322
10,421
11,415
12,328
13,178
13,976
14,731
20,814
25,468
29,381
32,819 |
5,221
7,383
9,041
10,439
11,670
12,783
13,806
14,759
15,653
16,498
23,315
28,534
32,924
36,783 |
6,188
8,751
10,717
12,374
13,834
15,154
16,367
17,496
18,557
19,559
27,647
33,842
39,058
43,645 |
9,080
12,841
15,726
18,158
20,301
22,238
24,019
25,677
27,234
28,707
40,588
49,697
57,372
64,128 |
| Capacities for 3"
CALIFORNIA Valve Models 315, VB-315, &
VT-315 (NPT), and Models 315F, VB-315F, & VT-315F
(flanged) (rated @ 60 psi)
CV = 336 (equivalent length is
9.1’ of 3" pipe) |
| Pressure
drop (IWC) |
Load (SCFH) for given inlet pressure |
| 8 IWC |
14 IWC |
3 PSI |
10 PSI |
15 PSI |
20 PSI |
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.0
3.0
4.0
5.0 |
5,793
8,192
10,032
11,582
12,948
14,182
15,316
16,372
17,363
18,300
25,849
31,620
36,468
40,724 |
5,834
8,250
10,103
11,665
13,040
14,283
15,426
16,489
17,487
18,431
26,034
31,847
36,731
41,017 |
6,296
8,903
10,903
12,588
14,073
15,414
16,648
17,795
18,873
19,892
28,103
34,384
39,663
44,299 |
7,438
10,518
12,881
14,872
16,627
18,212
19,670
21,027
22,300
23,505
33,217
40,653
46,908
52,406 |
8,156
11,534
14,125
16,309
18,233
19,972
21,571
23,059
24,456
25,778
36,433
44,594
51,462
57,502 |
8,816
12,467
15,268
17,629
19,709
21,589
23,318
24,926
26,437
27,866
39,388
48,215
55,045
62,181 |
| Capacities for 4"
CALIFORNIA Valve Models 316, VB-316, &
VT-316 (NPT), and Models 316F, VB-316F, & VT-316F
(flanged) (rated @ 60 psi)
CV = 480 (equivalent length is
13’ of 4" pipe) |
| Pressure
drop (IWC) |
Load (SCFH) for given inlet pressure |
| 8 IWC |
14 IWC |
3 PSI |
10 PSI |
15 PSI |
20 PSI |
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.0
3.0
4.0
5.0 |
8,276
11,702
14,331
16,546
18,497
20,260
21,880
23,388
24,804
26,143
36,927
45,172
52,098
58,177 |
8,335
11,786
14,433
16,664
18,629
20,404
22,036
23,555
24,981
25,329
37,191
45,496
52,472
58,496 |
8,994
12,719
15,576
17,983
20,104
22,021
23,782
25,422
26,691
28,417
40,147
49,120
56,661
63,285 |
10,625
15,026
18,401
21,246
23,752
26,017
28,100
30,038
31,858
33,579
47,453
58,076
67,011
74,866 |
11,651
16,477
20,178
23,299
26,047
28,532
30,816
32,341
34,938
36,625
52,047
63,706
73,517
82,145 |
12,594
17,810
21,812
25,185
28,156
30,841
33,311
35,609
37,767
39,808
56,268
68,878
79,493
88,830 |
|
Capacities for 6" CALIFORNIA Valve Models 317F, VB-317F, &
VT-317F (flanged) (rated @ 60 psi)
CV = 1766 (equivalent length
is 12.8’ of 6" pipe) |
|
Low-pressure systems |
Medium-pressure systems |
| Pressure
drop (IWC) |
Load (SCFH) for given inlet pressure |
| 8
IWC |
14
IWC |
| 0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.0
2.0
3.0
4.0 |
9,312
13,169
16,128
18,623
20,821
22,808
24,636
26,336
27,934
29,444
41,536
50,987
58,868
65,808 |
9,379
13,264
16,245
18,757
20,971
22,973
24,813
26,526
28,135
29,656
41,936
51,354
59,292
66,283
72,600
78,206
83,812
88,885
93,682
132,329
161,876
186,695 |
|
| Pressure
drop (PSI) |
Load (SCFH) for given inlet pressure |
| 3
PSI |
5
PSI |
| 0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7 |
167,984
236,890
289,300
333,093
371,332
405,589
436,804
464,586
492,367
517,453
541,082
563,437
584,664
604,882
624,189
642,667
660,385
677,404
693,774
709,541 |
177,272
250,060
305,474
351,821
392,327
428,652
461,784
491,317
520,850
547,562
572,751
596,608
619,289
640,918
661,598
681,416
700,444
718,746
736,376
753,381
769,802
785,676
801,035
815,909
830,323
844,302
857,866 |
|
|
Capacities for 8 " CALIFORNIA Valve Models 319F, VB-319F, &
VT-319F (flanged) (rated @ 60 psi)
CV = 3166 (equivalent length
is 9’ of 8 " pipe) |
Low-pressure systems |
Medium-pressure systems |
| Pressure drop (IWC) |
Load
(SCFH) for given inlet pressure |
| 8 IWC |
14 IWC |
| 0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.0
2.0
3.0
4.0
5.0 |
17,089
24,167
29,598
34,167
38,210
41,856
45,209
48,330
51,261
54,034
76,406
93,566
108,028
120,765 |
17,212
24,340
29,811
34,422
38,484
42,157
45,534
48,677
51,630
54,422
76,955
94,239
108,805
121,633
133,227
143,884
153,800
163,111
171,913
242,833
297,055
342,600
382,580 |
|
| Pressure drop (PSI) |
Load
(SCFH) for given inlet pressure |
| 3 PSI |
5 PSI |
| 0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7 |
308,644
435,247
531,541
612,004
682,260
745,202
802,553
855,437
904,639
960,730
994,144
1,035,216
1,074,216
1,111,362
1,146,834
1,180,783
1,213,337
1,244,604
1,274,681
1,303,649 |
325,713
459,451
561,265
646,420
720,845
787,586
848,460
904,651
956,985
1,006,064
1,052,343
1,096,177
1,137,849
1,177,588
1,215,584
1,251,995
1,286,956
1,320,582
1,352,973
1,384,216
1,414,386
1,443,551
1,471,770
1,499,097
1,525,580
1,551,262
1,576,182 |
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