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