Liquid Cv Calculations

Objective To provide a method to calculate the require system Cv in pneumatic terms that is required for a liquid application.

Required Data Liquid Flow in Gallons per minute or Liters per minute, Specific Gravity for Liquid and Differential Pressure in PSI or bar.

Input Item Descriptions

Liquid Flow (GPM)/(LPM) - The required flow of the liquid in Gallons per minute or Liters per minute. Specific Gravity for Liquid - The specific gravity for the liquid used. The specific gravity for water is 1. Differential Pressure(PSI)/(bars) - The pressure drop across the component or system being evaluated.

Calculated Item Descriptions

Coefficient of Flow (Cv) - The required Cv for the system or component being evaluated.