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Sure Flow Butterfly Valves

Product Options - Technical Information

Electric or Pneumatic Actuator Option
Cv Values - Valve Sizing Coefficients (US-GPM @ 1PSIP)

The Cv values in the following table are only available for ANSI Class 125 working pressure designed butterfly valves size from 2" to 48".

SizeFlow in GPM @ 1 PSI P@Various Disc Angles.Full 90°
Open
10°20°30°40°50°60°70°80°
2"0.151224456490125135
2 1/2"0.2820376598144204220
3"0.312223970116183275302
4"0.5173678139230364546600
5"0.829611332373926209301,022
6"245952053666059581,4371,579
8"3891884087271,2021,9032,8543,136
10"41513206941,2372,0473,2404,8595,340
12"52344951,0721,9113,1625,0057,5078,250
14"63387151,5492,7614,5687,23010,84411,917
16"84649832,1303,7976,2829,94214,91316,388
18"116151,3022,8225,0288,32013,16819,75221,705
20"147911,6743,6286,46510,69816,93125,39627,903
24"221,2222,5875,6059,98916,52826,15739,23643,116
28"361,8133,6396,63611,06118,67329,73244,34349,500
32"452,3874,7918,73613,78820,61331,39548,11768,250
36"603,0216,06311,05517,44926,08639,73160,89586,375
40"844,1838,39515,30724,15936,16655,08484,425119,750


Notes:
Manufacturer reserves the right to modify dimensions, materials, or design. Contact factory for certification.

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