There is only one requirement to ensure the built-in differential pressure controller works as it should. That is the total differential pressure over the Dynamic Valve™ is 10 kPa. If this pressure loss is present on the valve furthest from the pump, the system is correctly commissioned. To check if the required pressure loss is present use the dP tool™. It's a simple and unique tool that measures the available differential pressure.
Δp tool for pump optimization