Holding Tube

Use this tool to calculate either the required hold tube length or hold time based on your process parameters. Select the tube diameter, enter the flow rate and either the hold time or length, then click "Calculate" to see the result.

Equation for determining Holding tube Length: L = 588 Qt / D²

Hold Tube Equation (Length)

Tube Diameter (Inches):

Flow Rate (GPM):

Hold Time (Seconds):

Hold Tube Equation (Time)

Tube Diameter (Inches):

Flow Rate (GPM):

Length (Inches):

Disclaimer: This calculator is based on tables and data from the Pasteurized Milk Ordinance 2023.