Azbil Corporation No. SS2-8110-0530 - 3 - Note) 1) Where 2 conversion pressure values are shown, the upper one is for the rubber diaphram, and the lower one is for the PTFE diaphram conversion pressure. 2) Rubber and PTFE diaphram conversion pressures have the same values, except for the values that are mentioned in Note 1. Table 4 Flow characteristics reference No. Selection of Actuator for model VDD Select proper actuator for model VDD by following procedure. 1) Confirm both inlet and outlet pressure of the valve at full closure. 2) Calculate required shut-off pressure for actuator sizing referring to " Table 3 Required shut-off pressure calculation table". 3) Select proper actuator by using allowable differential pressure table and the calculated required shut-off pressure. Table 3 Required shut-off pressure calculation table P1 P2 Valve-inlet pressure kPa {kgf/cm2} 98{1.0} 200{2.0} 270{2.7} 390{3.9} 490{4.9} 590{6.0} 690{7.0} 780{7.9} 880{8.9} 981{10.0} Valve-outlet pressure kPa {kgf/cm2} 0{0} 98{1.0} 200{2.0} 270{2.7} 390{3.9} 490{4.9} 590{6.0} 690{7.0} 780{7.9} 880{8.9} 981{10.0} 50{0.5} 150{1.5} 240{2.4} 340{3.4} 440{4.4} 540{5.5} 640{6.5} 740{7.5} 830{8.4} 930{9.4} 98{1.0} 200{2.0} 270{2.7} 390{3.9} 490{4.9} 590{6.0} 690{7.0} 780{7.9} 880{8.9} 981{10.0} 150{1.5} 340{3.4} 440{4.4} 540{5.5} 640{6.5} 740{7.5} 830{8.4} 930{9.4} 981{10.0} 200{2.0} 340{3.4} 390{3.9} 440{4.4} 540{5.5} 540{5.5} 590{6.0} 640{6.5} 690{7.0} 740{7.5} 830{8.4} 930{9.4} 240{2.4} 490{4.9} 590{6.0} 690{7.0} 780{7.9} 880{8.9} 981{10.0} 270{2.7} 540{5.5} 640{6.5} 740{7.5} 830{8.4} 930{9.4} 981{10.0} 340{3.4} 640{6.5} 740{7.5} 830{8.4} 930{9.4} 390{3.9} 690{7.0} 780{7.9} 880{8.9} 981{10.0} 440{4.4} 830{8.4} 930{9.4} 490{4.9} 830{8.4} 930{9.4} 540{5.5} 981{10.0} 590{6.0} 981{10.0} Body Diaphragm material FC200 FC200 FCD-S FCD-S FCD-S SCS13 SCS13 Hard natural rubber Chloroprene Glass PFA ETFE PFA --- Natural rubber Chloroprene PTFE (Rubber EPDM) EPDM 3 3 3 4 5 6 5 2 3 3 1 5 1