Azbil Corporation No. SS2-AGV200-0001 - 11 - Valve seat leakage, Class IV: 0.01% of the rated Cv value Table 15 Model AGVM nominal size 1/2, 3/4 and 1 inch Note that the allowable differential pressure varies with the rated Cv value you have selected. Air-to-open Note) 1. In the case of using positioners, please the setting of supply pressure with pressure regulator. 2. The maximum allowable differential pressures must not exceed the maximum working pressures specified by JISB2201-1984, ANSIB16.34-1981, and JPI-7S-65-831. 3. In the differential pressure column, upper figures show normal differential pressures and lower figures differential pressures when the valve is fully closed. Nominal size (inch) Actuator Supply pressure kPa {kgf/cm2} Spring range kPa {kgf/cm2} Differential pressure (by Cv value) kPa {kgf/cm2} 0.1 0.16 0.25 0.4 0.63 1.0 1.6 2.5 4.0 6.3 8.0 10 14 1/2 3/4 1 PSA1R 140 {1.4} 20 to 98 {0.2 to 1.0} 1960 {20.0} 1650 {16.8} 1020 {10.4} 550 {5.6} 410 5100 {4.2} {52.0} 3120 {31.8} 270 {2.8} 80 to 240 {0.8 to 2.4} 1960 {20.0} 5100 {52.0} 3870 {39.5} 2890 {29.5} PSA2R 140 {1.4} 20 to 98 {0.2 to 1.0} -- 1960 {20.0} 1070 {10.9} 800 5100 {8.2} {52.0} 3200 {32.6} 1970 {20.1} 270 {2.8} 80 to 240 {0.8 to 2.4} -- -- -- -- 1960 {20.0} 5100 {52.0} 1 1