ClimateMaster’s Pressure Drop Calculator Software is an Excel based program that calculates the minimum system flow rate (gpm) needed for optimum system function and also calculates the amount of antifreeze needed for a proper water/antifreeze solution.

Download Pressure Drop Calculator Software

Version changed from 1.91 to 1.92. This version includes updated pumping data for the UPMXL with the check valve.

Download Legacy Pressure Drop Calculator Software
(includes obsolete Grundfos Magna pump)