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The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2014 Johnson Controls, Inc.
www.johnsoncontrols.com
V–352
Sizing Water Valves (Continued)
Valve Sizing and Cross-Reference
VFx- Series Standard-Performance Butterfly Valves
Cv at 90° Open for On/Off Service
Pipe Size, in. 2 2-1/2 3 4 5 6 8 10 12 14 16 18 20
Cv 144 282 461 841 1,376 1,850 3,316 5,430 8,077 10,538 13,966 17,214 22,339
Pressure
Drop, psi
Flow Rate, gpm
1 144 282 461 841 1,376 1,850 3,316 5,430 8,077 10,538 13,966 17,214 22,339
2 204 399 652 1,189 1,946 2,616 4,690 7,679 11,423 14,903 19,751 24,344 31,592
3 249 488 799 1,457 2,383 3,204 5,744 9,405 13,990 18,252 24,190 29,816 38,692
4 288 564 922 1,682 2,752 3,700 6,632 10,860 16,154 21,076 27,932 34,428 44,678
5 322 631 1,031 1,881 3,077 4,137 7,415 12,142 18,061 23,564 31,229 38,492 49,952
6 353 691 1,129 2,060 3,371 4,532 8,123 13,301 19,785 25,813 34,210 42,166 54,719
7 381 746 1,220 2,225 3,641 4,895 8,773 14,366 21,370 27,881 36,951 45,544 59,103
8 407 798 1,304 2,379 3,892 5,233 9,379 15,358 22,845 29,806 39,502 48,689 63,184
9 432 846 1,383 2,523 4,128 5,550 9,948 16,290 24,231 31,614 41,898 51,642 67,017
10 455 892 1,458 2,660 4,351 5,850 10,486 17,171 25,542 33,324 44,164 54,435 70,642
11 478 935 1,529 2,789 4,564 6,136 10,998 18,009 26,788 34,951 46,320 57,092 74,090
12 499 977 1,597 2,913 4,767 6,409 11,487 18,810 27,980 36,505 48,380 59,631 77,385
13 519 1,017 1,662 3,032 4,961 6,670 11,956 19,578 29,122 37,995 50,355 62,066 80,544
14 539 1,055 1,725 3,147 5,149 6,922 12,407 20,317 30,221 39,430 52,256 64,409 83,585
15 558 1,092 1,785 3,257 5,329 7,165 12,843 21,030 31,282 40,814 54,090 66,670 86,519
16 576 1,128 1,844 3,364 5,504 7,400 13,264 21,720 32,308 42,152 55,864 68,856 89,356
17 594 1,163 1,901 3,468 5,673 7,628 13,672 22,389 33,302 43,449 57,583 70,975 92,106
18 611 1,196 1,956 3,568 5,838 7,849 14,069 23,038 34,268 44,709 59,253 73,033 94,776
19 628 1,229 2,010 3,666 5,998 8,064 14,454 23,669 35,207 45,934 60,876 75,034 97,373
20 644 1,261 2,062 3,761 6,154 8,274 14,830 24,284 36,121 47,127 62,458 76,983 99,903
21 660 1,292 2,113 3,854 6,306 8,478 15,196 24,883 37,014 48,291 64,000 78,885 102,370
22 675 1,323 2,162 3,945 6,454 8,677 15,553 25,469 37,885 49,428 65,506 80,741 104,779
23 691 1,352 2,211 4,033 6,599 8,872 15,903 26,041 38,736 50,539 66,979 82,555 107,134
24 706 1,382 2,258 4,120 6,741 9,063 16,245 26,602 39,569 51,625 68,419 84,331 109,438
25 720 1,410 2,305 4,205 6,880 9,250 16,580 27,150 40,385 52,690 69,830 86,070 111,695
26 734 1,438 2,351 4,288 7,016 9,433 16,908 27,688 41,185 53,734 71,213 87,775 113,907
27 748 1,465 2,395 4,370 7,150 9,613 17,230 28,215 41,969 54,757 72,570 89,447 116,077
28 762 1,492 2,439 4,450 7,281 9,789 17,547 28,733 42,740 55,762 73,901 91,088 118,207
29 776 1,519 2,483 4,529 7,410 9,963 17,857 29,241 43,496 56,749 75,209 92,700 120,299
30 789 1,545 2,525 4,606 7,537 10,133 18,163 29,741 44,240 57,719 76,495 94,285 122,356
Zone and Fan Coil Valves
Valve Sizing and
Cross-Reference