JFlow control valve Sizing provides accurate calculations of process Cv’s, valve opening percentages, velocity, critical condition warnings, and predicted noise levels are some of the features provided by J-Flow Controls’s Trio Control Valve Sizing (TCVS) application Calculation algorithms, methods, and equations are in accordance with international standards of ANSI/ISA-75.01.01 (IEC 60534-2-1 Mod)-2007, Flow Equations for Sizing Control Valves, as well as ANSI/ISA-S75-17 - 1989, Control Valve Aerodynamic Noise Prediction.