No. SS2-VFR100-0100 Azbil Corporation - 4 - Cv value and travels Table 2 Piping bolt and nut materials and applicable fluid temperature ranges Fluid temperature Material of bolts Material of nuts -25°C to 350°C SNB7 S45C -60°C to -30°C SUS304 SUS304 Table 3 Cv value and travels (Standard model) Nominal size (inches) 6 8 10 12 VR3 Full port 600 1000 1400 1900 60% port 360 600 840 1140 40% port 240 400 560 760 Rated travel (Rotating angle) 100 (60°) VR3H (high differential press) 60% port 300 510 700 950 40% port 210 360 520 700 Rated travel (Rotating angle) 90 (54°) Table 4 Cv value and travels (Multi-hole plate model for anti-cavitation and noise reduction) Multi-hole plate type built-in type assembled with model HRL Nominal size (inches) 6 8 10 12 VR3 Full port 420 700 1080 1510 60% port 255 420 600 830 40% port 170 280 400 550 Rated travel (Rotating angle) 100 (60°) VR3H (high differential press) 60% port 230 390 540 750 40% port 155 270 380 530 Rated travel (Rotating angle) 90 (54°) Table 5 Cv values and travels (Multi-hole plate model HRL single Cv value) (Formed between the flanges) Nominal size (inches) 6 8 10 12 Rated Cv value Full port (for model VFR) 590 980 1700 2480 60% port (for model VFR) 360 590 860 1210 40% port (for model VFR) 230 400 570 800 a. Flow characteristics of valve b. Positioner cam/unit characteristics c. Modified flow characteristics (Combination of 4 and 6 characteristics) Figure 2 Flow characteristics when valve is used in conjunction with positioner cam/unit 0 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 Cv value (%) Travel (%) Full port 40% port 60% port High differential press. port 0 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 Cv value (%) Input signal (%) (Reverse action valve) 100 90 80 70 60 50 40 30 20 10 0 (Direction action valve) Eq% (AVP) Cam-2 (VPR) Unit-2 (HEP direct action) Unit-3 (HEP reverse action) Linear (AVP) Cam-1 (VPR) Unit-1 (HEP) 00 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 Cv value (%) Input signal (%) (Reverse action valve) 100 90 80 70 60 50 40 30 20 10 0 (Direction action valve) Full port Cam-2 (VPR) Unit-2 (HEP direct action) Unit-3 (HEP reverse action) + Linear (AVP) Cam-1 (VPR) Unit-1 (HEP) 60% port / High differential press + Linear (AVP) Cam-1 (VPR) Unit-1 (HEP) 40% port + Full port + AVP Eq%