`AR = ( p_i - p_o )/( p_i - p_v )`

Enter a value for all fields

The Control Valves and Cavitation Application Ratio calculator computes the application ratio for cavitation conditions based on the inlet and outlet pressure and the vapor pressure of the fluid.

INSTRUCTIONS: Choose units and enter the following:

• (p_i) This is the inlet pressure
• (p_o) This is the outlet pressure
• (p_v) This is the vapor pressure of the fluid

Application Ratio for Control Valves and Cavitation (AR):  The calculator returns the ratio.

The Math / Science

The Application Ratio for Control Valves and Cavitation formula is a common way to compute a characterization for cavitation conditions that may exist.  This provides an incipient cavitation index based on the formula in this calculator: 

                AR = (p_i - p_o) / (p_i - p_v)

where

• AR = Application Ratio
• p_i = inlet pressure
• p_o = outlet pressure
• p_v = vapor pressure of the fluid