Vacuum System Cv Calculations

Objective To calculate the required system Cv for a vacuum system when the flow and vacuum level are known.

Required Data Flow in SCFM or nl/m and Vacuum Level in Inches of Mercury (inHg) or torr.

Input Item Descriptions

Flow (SCFM)/(nl/m) - The flow through the vacuum system being evaluated.

Vacuum Level (inHg)/(torr) - The vacuum level in the system.

Calculated Item Descriptions

System Cv - The required coefficient of flow (Cv) for the system being evaluated.