Brochure

Table Of Contents
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–351
Sizing Water Valves (Continued)
Valve Sizing and Cross-Reference
VFx- Series Standard-Performance Butterfly Valves
Cv at 70° Open for Modulating Service
Pipe Size, in. 2 2-1/2 3 4 5 6 8 10 12 14 16 18 20
Cv 84 163 267 496 775 1,025 1,862 2,948 4,393 5,939 7,867 10,065 12,535
Pressure
Drop, psi
Flow Rate, gpm
1 84 163 267 496 775 1,025 1,862 2,948 4,393 5,939 7,867 10,065 12,535
2 119 231 378 701 1,096 1,450 2,633 4,169 6,213 8,399 11,126 14,234 17,727
3 146 282 463 859 1,342 1,775 3,225 5,106 7,609 10,287 13,626 17,433 21,711
4 168 326 534 992 1,550 2,050 3,724 5,896 8,786 11,878 15,734 20,130 25,070
5 188 365 597 1,109 1,733 2,292 4,164 6,592 9,823 13,280 17,591 22,506 28,029
6 206 399 654 1,215 1,898 2,511 4,561 7,221 10,761 14,548 19,270 24,654 30,704
7 222 431 706 1,312 2,051 2,712 4,926 7,800 11,623 15,713 20,814 26,630 33,165
8 238 461 755 1,403 2,192 2,899 5,267 8,338 12,425 16,798 22,251 28,468 35,454
9 252 489 801 1,488 2,325 3,075 5,586 8,844 13,179 17,817 23,601 30,195 37,605
10 266 516 844 1,569 2,451 3,241 5,888 9,322 13,892 18,781 24,878 31,828 39,639
11 279 541 886 1,645 2,570 3,400 6,176 9,777 14,570 19,697 26,092 33,382 41,574
12 291 565 925 1,718 2,685 3,551 6,450 10,212 15,218 20,573 27,252 34,866 43,423
13 303 588 963 1,788 2,794 3,696 6,714 10,629 15,839 21,413 28,365 36,290 45,196
14 314 610 999 1,856 2,900 3,835 6,967 11,030 16,437 22,222 29,436 37,660 46,902
15 325 631 1,034 1,921 3,002 3,970 7,212 11,418 17,014 23,002 30,469 38,982 48,548
16 336 652 1,068 1,984 3,100 4,100 7,448 11,792 17,572 23,756 31,468 40,260 50,140
17 346 672 1,101 2,045 3,195 4,226 7,677 12,155 18,113 24,487 32,437 41,499 51,683
18 356 692 1,133 2,104 3,288 4,349 7,900 12,507 18,638 25,197 33,377 42,702 53,182
19 366 711 1,164 2,162 3,378 4,468 8,116 12,850 19,149 25,888 34,292 43,872 54,639
20 376 729 1,194 2,218 3,466 4,584 8,327 13,184 19,646 26,560 35,182 45,012 56,058
21 385 747 1,224 2,273 3,552 4,697 8,533 13,509 20,131 27,216 36,051 46,124 57,443
22 394 765 1,252 2,326 3,635 4,808 8,734 13,827 20,605 27,856 36,900 47,209 58,794
23 403 782 1,281 2,379 3,717 4,916 8,930 14,138 21,068 28,482 37,729 48,270 60,116
24 412 799 1,308 2,430 3,797 5,022 9,122 14,442 21,521 29,095 38,540 49,308 61,409
25 420 815 1,335 2,480 3,875 5,125 9,310 14,740 21,965 29,695 39,335 50,325 62,675
26 428 831 1,361 2,529 3,952 5,227 9,494 15,032 22,400 30,283 40,114 51,322 63,916
27 437 847 1,387 2,577 4,027 5,326 9,675 15,318 22,827 30,860 40,878 52,299 65,134
28 445 863 1,413 2,625 4,101 5,424 9,853 15,599 23,246 31,426 41,628 53,259 66,329
29 452 878 1,438 2,671 4,174 5,520 10,027 15,876 23,657 31,983 42,365 54,202 67,503
30 460 893 1,462 2,717 4,245 5,614 10,199 16,147 24,062 32,529 43,089 55,128 68,657
Zone and Fan Coil Valves
Valve Sizing and
Cross-Reference