No. SS2-8113-0300 Azbil Corporation - 4 - Note) 1) ASTM Specifications indicate materials equivalent to those designated by JIS 2) *: ASTM B574 is equivalent to Hastelloy C-276. Cv value and travel Table 2 Body / trim material combinations and operating temperature ranges (°C) Body material Trim material JIS SCPH2 SCS31A SCS14A SCS16A SCS19A Titanium ASTM B574 * Alloy 20 ASTM A216WCB A351CF8 A351CF8M A351CF3M A351CF3 JIS Titanium alloy -196 to +315 JIS Titanium -196 to +315 JIS ASTM B574 * -196 to +450 JIS Alloy 20 -196 to +300 JIS Monel -5 to +300 -196 to +300-196 to +300 -196 to +300 -196 to +300 Table 3 High capacity type contoured plug Nominal size (inches) 1. 2 2. 3 4 6 8 Port size (inches) 1. 2 2. 3 4 6 8 Rated Cv value (%C,LC,%T,LT) 30 50 85 125 200 420 700 Rated travel (mm) 25 38 50 75 a. Equal percentage characteristics (%C: Metal seat, %T: Soft seat) b. Linear characteristics (LC: Metal seat, LT: Soft seat) Figure 1 Flow characteristics: High-capacity type Table 4 High-flow characteristic type contoured plug Nominal size (inches) 1. 2 2. 3 4 6 8 Port size (inches) 2.5 4 6.3 1 1.1.2.5 4 6.31.1. 2 1. 2 2. 2 2. 3 2. 3 4 4 5 6 5 6 8 Rated Cv value 10 17 24 17 24 44 24 44 68 44 68 99 68 99 175 175 275 360 275 360 640 Rated travel (mm) 14.3 25 14.3 25 38 50 75 a. Equal percentage characteristics (%CF: Metal seat) b. Linear characteristics (LCF: Metal seat) Figure 2-1 Flow characteristics: High-flow characteristic type (%CF, LCF) 100 50 20 10 5 2 0 20 40 60 80 100 Cv value (%) Travel (%) 100 80 60 40 20 0 0 20 40 60 80 100 Cv value (%) Travel (%) 100 50 20 10 5 2 0 20 40 60 80 100 Cv value (%) Travel (%) 100 80 60 40 20 0 0 20 40 60 80 100 Cv value (%) Travel (%)