Azbil Corporation No. SS2-8110-0400 - 3 - Allowable differential pressure Model VA, Spring type pneumatic diaphragm actuator (with positioner) : PTFE packing Note) 1)The data inside shaded column are for standard actuator. 2)The maximum operating pressure are 10.5 MPa {107 kgf/cm2} for rating of JIS 63K and 14.7 MPa {150 kgf/cm2} for rating ANSI900. 3)When inlet pressure at operating condition is higher than differential pressure at full closure, select actuator using the inlet pressure. Note) 1)The data inside shaded column are for standard actuator. 2)The maximum operating pressure are 10.5 MPa {107 kgf/cm2} for rating of JIS 63K and 14.7 MPa {150 kgf/cm2} for rating ANSI900. 3)When inlet pressure at operating condition is higher than differential pressure at full closure, select actuator using the inlet pressure. Table 2 Air-to-close Rating Actuator model no. Supply pressure kPa{kgf/cm2} Spring range kPa{kgf/cm2} Differential pressure MPa {kgf/cm2} Port size Cv=4.0 or less Cv=6.3 Cv=10 /1 1. 1. 2 2. 3 4 JIS 63K, ANSI 900, 1500 VA3D 270 {2.8} 20 to 180 {0.2 to 1.8} 20.8 {212} 14.7 {150} 11.1 {113} 6.77 {69} 4.61 {47} 2.74 {28} 250 {2.6} 20 to 98 {0.2 to 1.0} 24.5 {250} 22.9 {234} 17.2 {175} 10.6 {108} 7.16 {73} 4.31 {44} VA4D 270 {2.8} 20 to 180 {0.2 to 1.8} 18.6 {190} 15.4 {157} 9.51 {97} 6.37 {65} 3.82 {39} 2.35 {24} 1.67 {17} 250 {2.6} 20 to 98 {0.2 to 1.0} 24.5 {250} 24.0 {245} 14.7 {150} 10.0 {102} 5.98 {61} 3.63 {37} 2.65 {27} VA5D 270 {2.8} 20 to 180 {0.2 to 1.8} 16.3 {166} 12.9 {132} 8.82 {90} 5.30 {54} 3.24 {33} 2.35 {24} 1.27 {13} 250 {2.6} 20 to 98 {0.2 to 1.0} 24.5 {250} 20.3 {207} 13.7 {140} 8.24 {84} 5.00 {51} 3.63 {37} 2.06 {21} ANSI 2500 VA3D 270 {2.8} 20 to 180 {0.2 to 1.8} 20.8 {212} 14.7 {150} 11.1 {113} 11.1 {113} 6.77 {69} 4.61 {47} 250 {2.6} 20 to 98 {0.2 to 1.0} 31.9 {325} 22.9 {234} 17.2 {175} 17.2 {175} 10.6 {108} 7.16 {73} VA4D 270 {2.8} 20 to 180 {0.2 to 1.8} 18.6 {190} 15.4 {157} 15.4 {157} 9.51 {97} 6.37 {65} 3.82 {39} 2.35 {24} 250 {2.6} 20 to 98 {0.2 to 1.0} 29.1 {297} 24.0 {245} 24.0 {245} 14.7 {150} 10.0 {102} 5.98 {61} 3.63 {37} VA5D 270 {2.8} 20 to 180 {0.2 to 1.8} 16.3 {166} 16.3 {166} 12.9 {132} 8.82 {90} 5.30 {54} 3.24 {33} 2.35 {24} 250 {2.6} 20 to 98 {0.2 to 1.0} 25.4 {259} 25.4 {259} 20.3 {207} 13.7 {140} 8.24 {84} 5.00 {51} 3.63 {37} Table 3 Air-to-open Rating Actuator model no. Supply pressure kPa{kgf/cm2} Spring range kPa{kgf/cm2} Differential pressure MPa {kgf/cm2} Port size Cv=4.0 or less Cv=6.3 Cv=10 /1 1. 1. 2 2. 3 4 JIS 63K, ANSI 900, 1500 VA3R 250 {2.6} 40 to 200 {0.4 to 2.0} 6.86 {70} 4.90 {50} 3.63 {37} 2.26 {23} 1.47 {15} 0.88 {9} 270 {2.8} 80 to 240 {0.8 to 2.4} 16.2 {165} 11.3 {115} 8.34 {85} 5.39 {55} 3.43 {35} 2.16 {22} VA4R 250 {2.6} 40 to 200 {0.4 to 2.0} 6.37 {65} 4.90 {50} 3.92 {40} 2.16 {22} 1.27 {13} 0.78 {8} 0.59 {6} 270 {2.8} 80 to 240 {0.8 to 2.4} 14.7 {150} 11.8 {120} 7.35 {75} 4.90 {50} 2.94 {30} 1.96 {20} 1.27 {13} VA5R 250 {2.6} 40 to 200 {0.4 to 2.0} 5.39 {55} 4.41 {45} 2.94 {30} 1.76 {18} 1.08 {11} 0.78 {8} 0.39 {4} 270 {2.8} 80 to 240 {0.8 to 2.4} 12.7 {130} 10.3 {105} 6.86 {70} 3.92 {40} 2.45 {25} 1.76 {18} 0.98 {10} ANSI 2500 VA3R 250 {2.6} 40 to 200 {0.4 to 2.0} 6.86 {70} 4.90 {50} 3.63 {37} 3.63 {37} 2.26 {23} 1.47 {15} 270 {2.8} 80 to 240 {0.8 to 2.4} 16.2 {165} 11.3 {115} 8.34 {85} 8.34 {85} 5.39 {55} 3.43 {35} VA4R 250 {2.6} 40 to 200 {0.4 to 2.0} 6.37 {65} 4.90 {50} 4.90 {50} 3.92 {40} 2.16 {22} 1.27 {13} 0.78 {8} 270 {2.8} 80 to 240 {0.8 to 2.4} 14.7 {150} 11.8 {120} 11.8 {120} 7.35 {75} 4.90 {50} 2.94 {30} 1.96 {20} VA5R 250 {2.6} 40 to 200 {0.4 to 2.0} 5.39 {55} 5.39 {55} 4.41 {45} 2.94 {30} 1.76 {18} 1.08 {11} 0.78 {8} 270 {2.8} 80 to 240 {0.8 to 2.4} 12.7 {130} 12.7 {130} 10.3 {105} 6.86 {70} 3.92 {40} 2.45 {25} 1.76 {18} 1 10