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The Total Head Calculator feature on the web version of PUMP-FLO, PUMP-FLO.com can be used to calculate the total head for simple systems. The first step is to identify your pump system configuration. There are four different configurations available for calculating the Total Head. They are flooded suction, suction lift, submersible, and re-circulating.
Flooded Suction: The liquid source is located above the pump center line.- Suction Lift: The liquid source is located below the pump center line.
- Submersible: The pump is submerged in the liquid source.
- Re-circulating: A closed loop system.
The next step is to specify your Piping Configuration. This includes your flow rate, pipe materials and sizes, static suction head or lift and discharge head, and pipe lengths. Note: If your tank is open to atmosphere, your tank surface pressure will be 0 psi g.
Next you will choose your fluid. You can choose from one of the fluids available in PUMP-FLO.com, or you can specify custom fluid properties.
Finally, you can enter Valves and Fittings to add additional resistance to your system. Enter the number of tank entrances and exits, elbows, and valves. You can also enter a Fixed-K resistance coefficient to account for other unspecified resistances. Now click “Calculate.”
PUMP-FLO will return the Total Head and NPSHa based on the parameters you have provided. Click "Accept", and the values generated will be returned to the Design Point Search page. You are now ready to search the catalog. Based on your selection criteria (types and speeds, calculated design point flow and head), the program searches the catalog and generates a list of pumps meeting your requirements.
NOTE: The Total Head Calculator uses the Darcy-Weisbach method to calculate the pipeline head losses. This method takes into account fluid density and viscosity as well as pipe internal diameter and roughness, providing valid results for incompressible Newtonian fluids flowing in any round fully charged pipe. If you are pumping a non-Newtonian fluid, you should not use the Total Head Calculator to determine the required head for your pumping application.
Next you will choose your fluid. You can choose from one of the fluids available in PUMP-FLO.com, or you can specify custom fluid properties.
Finally, you can enter Valves and Fittings to add additional resistance to your system. Enter the number of tank entrances and exits, elbows, and valves. You can also enter a Fixed-K resistance coefficient to account for other unspecified resistances. Now click “Calculate.”
PUMP-FLO will return the Total Head and NPSHa based on the parameters you have provided. Click "Accept", and the values generated will be returned to the Design Point Search page. You are now ready to search the catalog. Based on your selection criteria (types and speeds, calculated design point flow and head), the program searches the catalog and generates a list of pumps meeting your requirements.
NOTE: The Total Head Calculator uses the Darcy-Weisbach method to calculate the pipeline head losses. This method takes into account fluid density and viscosity as well as pipe internal diameter and roughness, providing valid results for incompressible Newtonian fluids flowing in any round fully charged pipe. If you are pumping a non-Newtonian fluid, you should not use the Total Head Calculator to determine the required head for your pumping application.
