How Do You Calculate Pressure Drop Across a Pneumatic Valve? 🔧
To calculate pressure drop across a pneumatic valve, you need three key parameters: inlet pressure (P1), outlet pressure (P2), and flow rate (Q). The basic formula is ΔP = P1 – P2, but accurate calculations require considering the valve’s Cv coefficient and flow characteristics using the formula Q = Cv × √(ΔP × SG), where SG is the specific gravity of air (typically 1.0).