When do we need two water pumps for internal and external circulation?

When encountering a very small or large flow demand, if the flow rate of the matching unit is much greater than or much less than the production flow rate, there are three treatment options:

1. There is no pressure requirement for production water, and the water consumption is too small. A bypass is added to solve the client’s production needs;
2. If the client’s production water has high pressure requirements and the water flow is too small, two pumps must be used for internal and external circulation;
3. The production water volume is much greater than the water volume required by the unit. Regardless of whether there is a pressure requirement, it must be circulated internally and externally, and an external production water pump must be added;