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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–355
Sizing Water Valves (Continued)
Valve Sizing and Cross-Reference
VFx- Series High-Performance Class 300 Butterfly Valves
Cv at 70° Open for Modulating Service
Pipe Size, in. 2-1/2 3 4 5 6 8 10 12 14
Cv 100 155 315 500 710 1,360 1,740 2,500 2,400
Pressure
Drop, psi
Flow Rate, gpm
1 100 155 315 500 710 1,360 1,740 2,500 2,400
2 141 219 446 707 1,004 1,923 2,461 3,536 3,394
3 173 269 546 866 1,230 2,356 3,014 4,330 4,157
4 200 310 630 1,000 1,420 2,720 3,480 5,000 4,800
5 224 347 704 1,118 1,588 3,041 3,891 5,590 5,367
6 245 380 772 1,225 1,739 3,331 4,262 6,124 5,879
7 265 410 833 1,323 1,879 3,598 4,604 6,614 6,350
8 283 438 891 1,414 2,008 3,847 4,922 7,071 6,788
9 300 465 945 1,500 2,130 4,080 5,220 7,500 7,200
10 316 490 996 1,581 2,245 4,301 5,502 7,906 7,590
11 332 514 1,045 1,658 2,355 4,511 5,771 8,292 7,960
12 346 537 1,091 1,732 2,460 4,711 6,028 8,660 8,314
13 361 559 1,136 1,803 2,560 4,904 6,274 9,014 8,653
14 374 580 1,179 1,871 2,657 5,089 6,511 9,354 8,980
15 387 600 1,220 1,937 2,750 5,267 6,739 9,683 9,295
16 400 620 1,260 2,000 2,840 5,440 6,960 10,000 9,600
17 412 639 1,299 2,062 2,927 5,607 7,174 10,308 9,896
18 424 658 1,336 2,121 3,012 5,770 7,382 10,607 10,182
19 436 676 1,373 2,179 3,095 5,928 7,585 10,897 10,461
20 447 693 1,409 2,236 3,175 6,082 7,782 11,180 10,733
21 458 710 1,444 2,291 3,254 6,232 7,974 11,456 10,998
22 469 727 1,478 2,345 3,330 6,379 8,161 11,726 11,257
23 480 743 1,511 2,398 3,405 6,522 8,345 11,990 11,510
24 490 759 1,543 2,450 3,478 6,663 8,524 12,247 11,758
25 500 775 1,575 2,500 3,550 6,800 8,700 12,500 12,000
26 510 790 1,606 2,550 3,620 6,935 8,872 12,748 12,238
27 520 805 1,637 2,598 3,689 7,067 9,041 12,990 12,471
28 529 820 1,667 2,646 3,757 7,196 9,207 13,229 12,700
29 539 835 1,696 2,693 3,824 7,324 9,370 13,463 12,924
30 548 849 1,725 2,739 3,889 7,449 9,530 13,693 13,145
Zone and Fan Coil Valves
Valve Sizing and
Cross-Reference