Ratings/Construction PRESSURE RATINGS MAXIMUM PRESSURE RATINGS* SIZE RANGE in (mm) 2”- 24” (50-600 mm) 30”- 48” (800-1200 mm) 30”- 48” (800-1200 mm) ANSI Class 125 Ductile Iron ANSI Class 125 Cast Iron ANSI Class 125 Ductile Iron CONNECTION CWP psig (Bar) 250 (17.2) 150 (10.3) 250 (17.2) *For Critical Low Pressure Applications, such as gravity flow and digester gas, low-durometer (soft rubber) discs are available. Consult Factory. Coatings Mechanical Indicator (Optional) Headloss Chart AWWA Note: If the purchaser specifies a wetted Swing-Flex® 10 8 7 6 5 4 3 2 42” 48” 21/2” 2” 3” Backflow Actuator (Optional) component that was not tested and certified to NSF/ ANSI 61, the certification may not be valid. Oil Cushion 6” and larger (Optional) MATERIALS OF CONSTRUCTION COMPONENT Body STANDARD 2”- 24” (50-600 mm) Body 30”- 48” (800-1200 mm) Disc Ductile Iron ASTM A536, Grade 65-45-12 Ductile Iron ASTM A536, Grade 65-45-12 Buna-N w/Alloy Steel & Nylon Reinforcement Fusion Bonded Epoxy (Int/Ext) 17-4 Stainless Steel, Lead-Free Bronze T304 Stainless Steel, Lead-Free Bronze 17-4 Stainless Steel, Lead-Free Bronze OPTIONAL ASTM A351, CF8M 316 SS 3”-12” (80-300 mm) Cast Iron ASTM A126, Class B EPDM, Hypalon, Viton Rubber Lining, Glass Lining - - - CUBIC METERS PER HOUR 4” 6” 8” 10” 12” 14” 16” 18” 20” 24” 30” 36” 3 4 2 .7 .8 1 .5 .6 1 .8 .7 .6 .5 .4 .3 .2 .3 .4 .2 .08 .1 .04 .05 .06 .07 .1 .03 Flow Coeffi cients 4 FLOW OF WATER IN GALLONS PER MINUTE Size 2 2 1/2 3 4 6 8 10 12 14 16 18 20 24 30 36 42 48 Cv 95 155 225 440 1040 1900 3050 4600 6600 8700 11,200 14,200 21,000 33,500 50,000 68,000 88,800 HEADLOSS IN FEET OF WATER 20 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 METERS OF WATER 3,000 4,000 5,000 6,000 7,000 8,000 10,000 20,000 300 400 500 600 700 800 1,000 2,000 30 40 50 60 70 80 100 200 4 5 6 7 8 10 20 4 FEET/SECOND VELOCITY 20 FEET/SECOND VELOCITY 12 FEET/SECOND VELOCITY 9 FEET/SECOND VELOCITY 15 FEET/SECOND VELOCITY 5 FEET/SECOND VELOCITY TYPICAL VALVE SIZING RANGE SIZING RANGE OPTIMAL
Swing-Flex® Check Valve
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