Azbil Corporation No. SS2-8114-0200 - 5 - Note) The above graphs indicate typical flow characteristics Figure 1-1 Equal percentage characteristics (%CF Metal seat) Figure 1-2 Linear characteristics (LCF Metal seat) Figure 1-3 Equal percentage characteristics (%TF Soft seat) Figure 1-4 Linear characteristics (LTF Soft seat) Figure 1 Flow characteristics Figure 2 Bellows Type by Temperature and Pressure Ranges Note) Bellows type are classified into Formed bellows type I, II and welded bellows by temperature and pressure ranges. Please refer to No. SS2-BSL100-0100 about detail of bellows specification. Figure 3 Operating temperature and maximum differential pressure range of soft-seat type Note) If there is any possibility to cause erosion due to saturated steam or superheated-water, use the metal sheet. 100 50 20 10 5 2 0 20 40 60 80 100 Travel (%) Cv value (%) 100 80 60 40 20 0 0 20 40 60 80 100 Travel (%) Cv value (%) 100 50 20 10 5 2 0 20 40 60 80 100 Travel (%) Cv value (%) 100 80 60 40 20 0 0 20 40 60 80 100 Travel (%) Cv value (%) 3 2 1 -50 -30 +300 +350 Maximum pressure(MPa) Welded bellows Formed bellows type II Formed bellows type I Fluid temperature ( C) Glass-inserted PTFE PTFE Carbonfiber inserted PTFE Maximum differential pressure Fluid temperature ( C) 2940 {30} 1470 {15} 2940 {30} 1470 {15} 490 {5} 0 kPa {kgf/cm2} -80 +100 +200 +230 6 2