Std, KO & KOL Seat Comparisons November 2012
Std, KO & KOL Seat Comparisons
November 2012
Maximum Flow Overview
Size Standard Seat Max
Flow (GPM) KO Seat Max Flow
(GPM) KOL Seat Max Flow
(GPM) NFPA 20 Flow
Requirement (GPM)
2” 500 250 400 250
3” 850 520 650 500
4” 2000 900 1200 1000
6” 4400 2500 2750 2500
8” 7700 4000 5000 4000
10” 12450 6600 7500 N/A
Note: Flows based on 100 PSID across valve.
Cv Overview
Size Standard Seat Cv
(GPM) KO Seat Cv (GPM)
KOL Seat Cv (GPM)
NFPA 20 Cv Requirement (GPM)
2” 50 25 40 25
3” 85 52 65 50
4” 200 90 120 100
6” 440 250 275 250
8” 770 400 500 400
10” 1245 660 750 N/A
6” Std, KO, & KOL Seat Comparison
8” Std, KO, & KOL Seat Comparison
10” Std, KO, & KOL Seat Comparison
10” Standard Seat vs. KOL