Azbil Corporation No. SS2-ACP110-0100 - 3 - Cv value and travel Table 1 Body / trim material combinations and operating temperature ranges (°C) Body material Trim material JIS SCPH2 SCPH21 SCS61 SCPL1 SCS13A SCS14A ASTM A216WCB A217WC6 A217C5 A352LCB A351CF8 A351CF8M ASTM A351CF8M* -5 to 230 -5 to 230 -5 to 230 -45 to 230 -196 to 230 -196 to 230 ASTM A351CF8M* Stellite -5 to 400 -5 to 400 -5 to 400 -45 to 350 -196 to 400 -196 to 400 JIS SCS24 -5 to 400 -5 to 400 -5 to 400 -5 to 350 - - Table 2 CV value and travel (temperature range: -196 to 230°C) Nominal size (inches) 1 . 2 2 . 3 4 5 6 8 Port size (inches) 1 1.1.1.1. 2 1. 2 2. 2 2. 3 2. 3 4 3 4 5 4 5 6 5 6 8 Rated Cv value %V 10 26 29 18 31 56 23 40 78 59 78 110 63 103 158 99 175 250 179 261 322 275 360 610 LV - - 34 - - 601 - - 81 - - 115 - - 203 - - 250 - - 371 - - 795 Rated travel (mm) 25 38 50 75 Table 3 Cv value and travel (temperature range: +230 to +400°C) Nominal size (inches) 1 . 2 2 . 3 4 5 6 8 Port size (inches) 1 1.1.1.1. 2 1. 2 2. 2 2. 3 2. 3 4 3 4 5 4 5 6 5 6 8 Rated Cv value %V - - 29 - - 56 - - 78 - - 110 63 103 158 99 175 250 179 261 322 275 360 610 LV - - 24 - - 52 - - 78 - - 110 63 103 150 99 175 250 179 261 350 275 360 600 Rated travel (mm) 25 38 50 75 a. Equal percentage characteristics (%V) b. Linear characteristics (LV) Figure 1 Flow characteristics 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 (%) 2 2