Ratings/Construction Headloss Chart 630.941.7600 |
[email protected] | valmatic.com 108 4/24 HEAD LOSS IN FEET OF WATER FLOW OF WATER IN GALLONS PER MINUTE (CUBIC METERS PER HOUR) (METERS OF WATER) 100 200 300 400 500 600 700 800 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 100,000 200,000 300,000 400,000 500,000 600,000 700,000 800,000 1000,000 .03 .04 .05 .06 .07 .08 .1 .2 .3 .4 .5 .6 .7 .8 1 2 3 4 10 8 7 6 5 4 3 2 1 .8 .7 .6 .5 .4 .3 .2 .1 30 40 50 60 70 80 100 200 300 400 500 600 700 800 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 100,000 200,000 TYPICAL VALVE SIZING RANGE 10 20 .02 15 5 .06 .07 .08 96” 84” 72” 60” 48” 42” 54” 66” 4 FEET/SECOND VELOCITY 20 FEET/SECOND VELOCITY 15 FEET/SECOND VELOCITY 10 FEET/SECOND VELOCITY 5 FEET/SECOND VELOCITY 16 FEET/SECOND VELOCITY 30” 36” 24” 20” 18” 16” 14” 12” 10” 8” 6” 4” 78” 90”102” 3” 108” PRESSURE RATINGS MATERIALS OF CONSTRUCTION MAXIMUM PRESSURE RATINGS SERIES CONNECTION AWWA Class CWP (psig) 2000 ANSI 125# Gray Iron Flange 150B 150 2100 AWWA MJ Gray Iron 150B 150 2200 ANSI 250# Ductile Iron Flange 250B 250 2300 AWWA MJ Ductile Iron 250B 250 2400 ANSI 125# Ductile Iron Flange 250B 250 2500 ANSI 125# Gray Iron Wafer 150B 150 2500L ANSI 125# Gray Iron Lug 150B 150 2600 ANSI 125# FLG x MJ Gray Iron 150B 150 2700* ANSI 250# FLG Ductile Iron 275C 275 A M E R I C A N - B F V ® B U T T E R F L Y V A L V E Flow Coefficients Size Cv 3 380 4 590 6 1,430 8 2,750 10 4,300 12 6,550 14 8,350 16 11,800 18 15,000 20 18,600 24 27,000 30 42,000 36 61,900 42 87,100 48 114,000 54 144,000 60 180,000 66 221,000 72 266,500 78 316,000 84 366,000 90 420,500 96 478,500 102 540,000 108 605,500 120 744,000 COMPONENT STANDARD OPTIONAL 150B Body 3”- 72” Cast Iron ASTM A126, Class B Ductile Iron, Stainless Steel 150B Body 78”- 120” Ductile Iron ASTM A536 Gr. 65-45-12 Stainless Steel 250B Body 3”- 96” Disc Ductile Iron ASTM A536 Gr. 65-45-12 Stainless Steel 150B Shaft 3”- 72” Stainless Steel ASTM A276 Type 304 Stainless Steel Type 316, Monel 150B Shaft 78”- 120” Stainless Steel ASTM A564 Type 630, H1150 Monel 250B Shaft 3”- 84 Resilient Seat Buna-N EPDM, Viton Body, Seat and Hardware Type 316 Stainless Steel Monel Shaft Bearings 3” - 24” Nylatron Teflon, Bronze Shaft Bearings 30” and Larger Teflon-Lined, Fiberglass-Backed Teflon-Lined, Stainless Steel, Bronze Backed *See Bulletin 2000HP for High Performance Butterfly Valve Information American-BFV® Butterfly Valves American-BFV® Butterfly Valves
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