Azbil Corporation No. SS2-8110-0300 - 3 - Figure 1 Operating temperature and Pressure differential limit of PTFE seat valve Note) ..: Applicable Equal percentage Figure 2 Flow characteristics (Idealistic flow characteristics is indicated in this graph.) Table 1 Cv value and rated travel Valve size (inches) 1. 2 2. 3 4 5 6 8 10 12 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 6 8 10 8 10 12 Rated Cv value 11 17 24 17 24 44 24 44 68 44 68 99 68 99 175 99 175 275 175 275 395 275 395 640 395 640 1000 640 1000 1440 Plug type & Characteristic Equal percentage contoured .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. Linear contoured Rated travel (mm) 25 25 37.5 37.5 37.5 50 50 75 100 100 Equal percentage contoured, Soft seat .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. Linear contoured, Soft seat Rated travel (mm) 25 25 37.5 37.5 37.5 50 50 75 100 100 On-off plug with stellite seat - - .. - - .. - - .. - - .. - - .. - - .. - - .. - - .. - - .. - - .. Rated travel (mm) 14.3 14.3 25 25 25 37.5 37.5 50 75 75 30 15 0 -80 0 100 200 Max. pressure differential kPa {kgf/cm2} Fluid temperature (..C) 11 17 24 44 68 99 175 275 395 640 1,000 1,440 100 90 80 70 60 50 40 30 20 10 0 0.4 0.5 0.6 0.9 1 2 3 4 56789 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1,000 2,000 Travel (%) Cv value Port size (inches) 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12 1 9