Azbil Corporation No. SS2-8113-1200 - 5 - Allowable differential pressure Metal seat (%L, LV) : Graphite packing "P6610CH+P6528" (+230 to +500 °C) Valves with type HA, VA or PSA actuator Table 5 Air-to-close Note) 1) Positioner is employed in general. 2) Allowable differential pressure at valve-close in the above table is under the condition of ..P P1 (P2 0). Allowable differential pressure at full closure varies depending on the outlet pressure (P2). Detailed information is avail able on request. 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 the allowable differential pressure at full closure. 5) The upper figures denote the operating allowable differential pressure. The lower denote the allowable differential pressure at full closure. Rating Actuator model No. Supply pressure kPa {kgf/cm2 Spring range kPa {kgf/cm2} Differential pressure (by nominal size(inches)) kPa {kgf/cm2} 1 . 2 3 4 6 8 JIS63K ANSI 900, 1500 JPI 900, 1500 HA3D 340 {3.5} 80 to 240 {0.8 to 2.4} 25600 {261} 20900 {213} 14000 {142} 10500 {107} 6280 {64.0} 25900 {264} 6280 {64.0} 390 {4.0} 25900 {264} 22800 {232} 15300 {156} 11500 {117} 6280 {64.0} 25900 {264} 25900 {264} 25500 {260} 18700 {190} 11500 {117} HA4D 340 {3.5} 80 to 240 {0.8 to 2.4} 25900 {264} 25900 {264} 19800 {202} 13200 {135} 9320 {95.0} 20300 {207} 13500 {137} 390 {4.0} 19800 {202} 13200 {135} 9900 {100} 25900 {264} 22200 {226} 15500 {158} VA5D 270 {2.8} 40 to 200 {0.4 to 2.0} 12700 {129} 8490 {86.5} 6380 {65.0} ANSI 2500 JPI 2500 HA3D 340 {3.5} 80 to 240 {0.8 to 2.4} 25600 {261} 20900 {213} 19000 {193} 12800 {130} 7650 27300 {78.0} {278} 390 {4.0} 30000 {305} 22800 {232} 20800 {212} 13900 {141} 8600 {87.6} 43100 {440} 38100 {388} 34700 {353} 23400 {238} 13100 {133} HA4D 340 {3.5} 80 to 240 {0.8 to 2.4} 28300 {288} 28300 {288} 28300 {288} 24100 {245} 14500 {147} 12200 43100 {124} {440} 40200 {409} 36600 {373} 24700 {251} 390 {4.0} 41200 {420} 39500 {402} 36000 {367} 24100 {245} 15000 {152} 13200 {134} 43100 {440} 43100 {440} 43100 {440} 42900 {437} 25800 {263} 22200 {226} VA5D 270 {2.8} 40 to 200 {0.4 to 2.0} 15400 {157} 9790 {99.8} 8490 {86.5} 2 4