Azbil Corporation No. SS2-8113-0300 - 13 - Allowable differential pressure Contoured type soft seat (%TF, LTF, %T,LT) : PTFE packing Valves with type DAP actuator Note) 1) When a backup system for pressure drop at the air source is used, select the allowable differential pressure from whichever is lower-constant supplied air pressure or backup system set pressure (trip pressure). 2) ..:Positioner is necessary, ..: Can be operated either with or without positioner. 3) Take care not to cause the maximum allowable differential pressure to exceed the maximum operating pressure designated by ANSI B 16. 34-1981 or JIS B2201-1984. Table 14 Air-to-close and Air-to-open Actuator model No. Supply pressure kPa{kgf/ cm2} Positioner Differential pressure (by port size (inches)) kPa {kgf/cm2} 2. 3 4 5 6 8 DAP560 290 {3.0} .. 2940 {30.0} 2530 {25.8} 1420 {14.5} 900 {9.2} 550 {5.6} 390 {4.0} 2940 {30.0} 2940 {30.0} 1910 {19.5} 1220 {12.5} 740 {7.6} 490 {5.0} 2940 {30.0} 2940 {30.0} 2390 {24.4} 1540 {15.7} 930 {9.5} DAP1000 290 {3.0} 2940 {30.0} 2940 {30.0} 2530 {25.8} 1620 {16.5} 990 {10.1} 590 {6.0} 390 {4.0} 2940 {30.0} 2940 {30.0} 2940 {30.0} 2190 {22.3} 1320 {13.5} 780 {8.0} 490 {5.0} 2940 {30.0} 2940 {30.0} 2940 {30.0} 2740 {28.0} 1670 {17.0} 990 {10.1} DAP1500 290 {3.0} 2440 {24.9} 1480 {15.1} 890 {9.1} 390 {4.0} 2940 {30.0} 1990 {20.3} 1210 {12.3} 490 {5.0} 2940 {30.0} 2500 {25.5} 1510 {15.4} 1 5