Azbil Corporation No. SS2-8113-0400 - 11 - Valves with type DAP actuator Note) 1) Positioner is employed in general. 2) In case a back-up system is used for pressure drop of supply air, select the allowable differential pressure whichever is lower-the operating supply air pressure or the back-up system set pressure (trip pressure). 3) Take care not to cause the maximum allowable differential pressure to exceed the maximum operating pressure designated by ANSI B16. 34-1981 or JIS B2201-1984. 4) Take care not to cause the inlet pressure (P1) to exceed allowable differential pressure at valve-close. 5) Allowable differential pressure limit differs depending on valve seat leakage volume. Figures in the upper portion of the column denote pressure under a leakage rate of 0.01%. Those on the lower side denote pressure under a leakage rate of 0.001%. Table 14 Air-to-close and Air-to-open Rating Actuator Model No. Supply Pressure kPa {kgf/cm2} Differential Pressure (by Port size(inch)) kPa {kgf/cm2} Cv<=4.0 Cv=6.3 Cv=12 1 . inch 1 . inch 2 inches 2 . inches 3 inches JIS63K ANSI 900,1500 JPI 900,1500 DAP 560 290 {3.0} 18400 {188.0} 18300 {187.0} 18200 {186.0} 18000 {184.0} 13900 {142.0} 8140 {83.0} 4900 {50.0} 3530 {36.0} 18100 {185.0} 18000 {184.0} 17800 {182.0} 17400 {177.0} 13300 {136.0} 7750 {79.0} 4610 {47.0} 3240 {33.0} 390 {4.0} 24600 {251.0} 24600 {251.0} 24500 {250.0} 24200 {247.0} 18700 {191.0} 11100 {113.0} 6770 {69.0} 4800 {49.0} 24300 {248.0} 24200 {247.0} 24000 {245.0} 23600 {241.0} 18100 {185.0} 10600 {108.0} 6370 {65.0} 4510 {46.0} 490 {5.0} 25900 {264.0} 25900 {264.0} 25900 {264.0} 25900 {264.0} 23500 {240.0} 13900 {142.0} 8530 {87.0} 6080 {62.0} 25900 {264.0} 25900 {264.0} 25900 {264.0} 25900 {264.0} 22900 {234.0} 13500 {138.0} 8140 {83.0} 5780 {59.0} DAP 1000 290 {3.0} 17600 {179.0} 14300 {146.0} 8730 {89.0} 6280 {64.0} 17200 {175.0} 13900 {142.0} 8430 {86.0} 5980 {61.0} 390 {4.0} 23500 {240.0} 19300 {197.0} 11900 {121.0} 8430 {86.0} 23100 {236.0} 18800 {192.0} 11500 {117.0} 8140 {83.0} 490 {5.0} 25900 {264.0} 24300 {248.0} 14900 {152.0} 10700 {109.0} 25900 {264.0} 23800 {243.0} 14500 {148.0} 10400 {106.0} DAP 1500 290 {3.0} 17200 {175.0} 13500 {138.0} 9710 {99.0} 16800 {171.0} 13200 {135.0} 9410 {96.0} 390 {4.0} 22900 {234.0} 18200 {186.0} 1300 {133.0} 22600 {231.0} 17800 {182.0} 12700 {130.0} 490 {5.0} 25900 {264.0} 22800 {233.0} 16400 {167.0} 25900 {264.0} 22400 {229.0} 16100 {164.0} DAP 560 290 {3.0} 18400 {188} 18300 {187} 18200 {186} 18200 {186} 18000 {184} 11100 {113} 8140 {83.0} 4900 {50.0} ANSI 2500 JPI 2500 18100 {185} 18000 {184} 17800 {182} 17800 {182} 17400 {177} 10500 {107} 7750 {79.0} 4610 {47.0} 390 {4.0} 24600 {251} 24600 {251} 24500 {250} 24500 {250} 24200 {247} 14900 {152} 1110 {113.0} 6770 {69.0} 24300 {248} 24200 {247} 24000 {245} 24000 {245} 23600 {241} 14400 {147} 10600 {108.0} 6370 {65.0} 490 {5.0} 30900 {315} 30800 {314} 30700 {313} 30700 {313} 30400 {310} 18800 {192} 13900 {142.0} 8530 {87.0} 30600 {312} 30500 {311} 30300 {309} 30300 {309} 29800 {304} 18200 {186} 13500 {138.0} 8140 {83.0} DAP 1000 290 {3.0} 17400 {178} 14300 {146.0} 8730 {89.0} 17000 {173} 13900 {142.0} 8430 {86.0} 390 {4.0} 23400 {239} 19300 {197.0} 11900 {121.0} 23000 {235} 18800 {192.0} 11500 {117.0} 490 {5.0} 29400 {300} 24300 {248.0} 14900 {152.0} 29000 {296} 23800 {243.0} 14500 {148.0} DAP 1500 290 {3.0} 17200 {175.0} 13500 {138.0} 16800 {171.0} 13200 {135.0} 390 {4.0} 22900 {234.0} 18200 {186.0} 22600 {231.0} 17800 {182.0} 490 {5.0} 28800 {294.0} 22800 {233.0} 28400 {290.0} 22400 {229.0} 1 8