No. SS2-8110-1200 Azbil Corporation - 4 - Allowable differential pressure Valves with type VA actuator Note) 1) " " shows a model with 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 of ANSI 900. 3) The upper figures denote operating allowable differential pressure. The lower denote allowable differential pressure at full closure. 4) When inlet pressure is larger than differential pressure when a valve is fully closed, use the inlet pressure for actuator sizing. Table 3 Air-to-close Rating Actuat or model no. Supply pressure kPa{kgf/cm2} Spring range kPa{kgf/cm2} Differential pressure MPa {kgf/cm2} Nominal size (inches) 1. 2 2. 3 4 5 6 8 10 12 JIS 63K, ANSI 900, 1500 VA3D 250 {2.6} 40 ~ 200 {0.4 ~ 2.0} 16.7 {170} 16.7 {170} 16.2 {165} 11.8 {120} 7.35 {75.0} 16.7 {170} 16.7 {170} 12.7 {130} 270 {2.8} 23.0 {235} 23.0 {235} 16.2 {165} 11.8 {120} 19.6 {200} 16.7 {170} 270 {2.8} 20 ~ 180 {0.2 ~ 1.8} 24.5 {250} 15.2 {155} 24.5 {250} VA4D 250 {2.6} 40 ~ 200 {0.4 ~ 2.0} 14.7 {150} 9.32 {95.0} 6.86 {70.0} 14.2 {145} 11.8 {120} 270 {2.8} 20.6 {210} 20.6 {210} 14.7 {150} 17.6 {180} 270 {2.8} 20 ~ 180 {0.2 ~ 1.8} 24.5 {250} 16.7 {170} 23.5 {240} VA5D 250 {2.6} 40 ~ 200 {0.4 ~ 2.0} 12.7 {130} 4.41 {45.0} 2.94 {30.0} 2.45 {25.0} 8.34 {85.0} 6.37 {65.0} 5.39 {55.0} 270 {2.8} 18.1 {185} 18.1 {185} 14.2 {145} 16.2 {165} 270 {2.8} 20 ~ 180 {0.2 ~ 1.8} 23.5 {240} 11.8 {120} 19.6 {200} ANSI 2500 VA3D 250 {2.6} 40 ~ 200 {0.4 ~ 2.0} 16.7 {170} 16.7 {170} 16.2 {165} 11.8 {120} 7.35 {75.0} 16.7 {170} 16.7 {170} 12.7 {130} 270 {2.8} 23.0 {235} 23.0 {235} 16.2 {165} 11.8 {120} 19.6 {200} 16.7 {170} 270 {2.8} 20 ~ 180 {0.2 ~ 1.8} 29.9 {305} 15.2 {155} 25.0 {255} VA4D 250 {2.6} 40 ~ 200 {0.4 ~ 2.0} 14.7 {150} 13.2 {135} 9.32 {95.0} 14.7 {150} 14.2 {145} 270 {2.8} 20.6 {210} 20.6 {210} 14.7 {150} 13.2 {135} 17.6 {180} 17.2 {175} 270 {2.8} 20 ~ 180 {0.2 ~ 1.8} 26.5 {270} 16.7 {170} 23.5 {240} VA5D 250 {2.6} 40 ~ 200 {0.4 ~ 2.0} 5.39 {55.0} 3.92 {40.0} 2.94 {30.0} 12.7 {130} 7.84 {80.0} 6.37 {65.0} 270 {2.8} 18.1 {185} 18.1 {185} 18.1 {185} 5.39 {55.0} 14.7 {150} 270 {2.8} 20 ~ 180 {0.2 ~ 1.8} 23.5 {240} 23.5 {240} 11.8 {120} 19.6 {200}