Function
The through flow is via the motor valve controlled i.e. the supply is set to the maximum of liquid required by the CNC-machine. The holiday-/weekend valve controls that the flow of liquid to the sump, the collecting vat, and the filtration plant is exactly sufficient to prevent the growth of microorganisms. The return pump starts and stops automatically via the level switch. In case of a high level alarm from the level switch the motor valve immediately closes.