At the design stage, you need to know the pressure of coolant available at the plant.
If the available pressure is less than what the cooling channels will require once the mold is in place, the cooling of the part could be ineffective due to possible non-turbulent flow of coolant.
The pressure drop is directly related to the length of the cooling chanel, cooling channel diameter, and the flow velocity. Pressure requirements will increase with any of the following:
- An increase in cooling channel length
- An increase in flow velocity
- A decrease in cooling channel diameter