Three unmarked brass ball valves of different sizes on a grey studio surface, the middle one turned end-on so the round opening through the ball is visible

Full Port vs Reduced Port Brass Ball Valve: Cv, Pressure Drop and When the Cheaper Body Is the Correct Spec

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Real Cv values by size, the pressure drop they produce and the duties where a reduced-port brass ball valve is the correct spec, not the cheap one.

Full Port vs Reduced Port Brass Ball Valve: Cv, Pressure Drop and When the Cheaper Body Is the Correct Spec Lire plus "