Valtek MaxFlo 3 Control Valve Technical Brochure - Flowserve ...

MaxFlo 3 FCD VLENTB0052-01 – 01/11Cv (Flow Capacity) TablesTable 4: MaxFlo 3 Cv at Full Travel (Inherent characteristic is linear)Flow-to-Close(shaft up)Valve Size1 (25)1.5 (40)2 (50)3 (80)4 (100)6 (150)8 (200)10 (250)12 (300)SeatNR (Diaphragm) Actuator60 degree travelNR (Diaphragm) Actuator80 degree travelVR or Supernova Actuator90 degree travelPercent of Full Area 100% % F/A 100% % F/A 100%15% 20% 40% 70% (Full Area) 40% 70% (Full Area) 40% 70% (Full Area)Metal 2* 3* 6.64 11.6 16.6 - - 20.4 8.41 14.7 21Soft Seat - - 4.74 6.65 9.65 - - 11.9 6 8.41 12.2Metal - - 15.7 27.5 39.3 - - 48.4 19.9 35 50Soft Seat - - 15.7 27.7 33.2 - - 40.9 19.9 35 42Metal - - 19.1 33.7 61.6 - - 75.9 24 43 78Soft Seat - - 19 34 54.6 - - 67.2 24 43 69Metal - - 75.2 132 169 - - 208 95 167 214Soft Seat - - 75.1 132 169 - - 208 95 167 214Metal - - 119 174 239 - - 294 150 220 302Soft Seat - - 119 174 239 - - 294 150 220 302Metal - - 256 448 577 - - 711 324 567 730Soft Seat - - 256 448 577 - - 711 324 567 730Metal - - - 670 893 - - 1100 - 847 1130Soft Seat - - - 670 894 - - 1100 - 847 1130Metal - - - 1060 1410 - - 1740 - 1340 1780Soft Seat - - - 1060 1410 - - 1740 - 1340 1780Metal - - - 1520 2020 - - 2490 - 1920 2560Soft Seat - - - 1520 2020 - - 2490 - 1920 2560*Cv 2 and CV 3 have Quick-Open characteristic. Linearize with any Flowserve positioner characterized =%Flow-to-Open(shaft down)Valve Size1 (25)1.5 (40)2 (50)3 (80)4 (100)6 (150)8 (200)10 (250)12 (300)SeatNR (Diaphragm) Actuator60 degree travelNR (Diaphragm) Actuator80 degree travelVR or Supernova Actuator90 degree travelPercent of Full Area 100% % F/A 100% % F/A 100%15% 20% 40% 70% (Full Area) 40% 70% (Full Area) 40% 70% (Full Area)Metal 2* 3* 6 9.85 14.1 - - 17.3 7.1 12.5 18Soft Seat - - 4.74 5.61 8.15 - - 10 6 7.1 10.3Metal - - 14.7 25.8 36.8 - - 45.4 19 33 47Soft Seat - - 15 26.1 30.8 - - 38 19 33 39Metal - - 25.1 40.8 62.8 - - 77.4 32 52 80Soft Seat - - 25.3 41.1 56.1 - - 69.1 32 52 71Metal - - 82.2 144 190 - - 235 104 182 241Soft Seat - - 82.2 144 191 - - 235 104 182 241Metal - - 134 211 320 - - 394 170 267 405Soft Seat - - 134 211 320 - - 394 170 267 405Metal - - 302 528 754 - - 930 382 669 955Soft Seat - - - 529 755 - - 930 382 669 955Metal - - - 1010 1340 - - 1650 - 1280 1700Soft Seat - - - 1010 1340 - - 1650 - 1280 1700Metal - - - 1480 1980 - - 2440 - 1880 2500Soft Seat - - - 1490 1980 - - 2440 - 1880 2500Metal - - - 2130 2840 - - 4500 - 2700 3600Soft Seat - - - 2140 2850 - - 3510 - 2700 3600For detailed Cv vs. Position tables visit http://extranet.flowserve.com: Valves > Sizing & Selection > Cv TablesAlso Flowserve Perfornace! sizing software (www.flowserveperfornance.com) provides a Cv table utility.flowserve.com5