This type of system allows to recover and therefore recirculate the entire requirement of the service liquid, whether it comes from the process or it is fed by a closed circuit dedicated to this service. Once the filtering and cooling cycle is finished, the service liquid must have a suitable temperature for the proper pump functioning. The below P&I refers to a typical full-optional system with recirculation of the service liquid from a dedicated closed circuit. There is also the possibility to engineer its parts following the customer’s requests. The system can be entirely supplied including the control panel or, as alternative, it is possible to require only the necessary components.