Pasteurizer – Raw product from the balance tank is transported by a booster pump through the raw regenerator section where it is preheated by hot product in the pasteurized regenerator. The product then flows to the homogenizer/timing pump, which maintains a constant system flow rate. The raw product then enters the heater section where it is heated to processing temperatures. Product from the heater section flows through a holding tube to the flow diversion valve that prevents non-pasteurized product from flowing forward through the remainder of the system. Pasteurized product from the holding tube enters the pasteurized regenerator section where it is pre-cooled by raw product in the raw regenerator. From the pasteurized regenerator, product enters the cooler section and is cooled to packaging temperatures. From the cooler section the pasteurized product flow is either routed by a recycle valve to storage or recycled to the balance tank. A second valve is provided to permit flow to drain for start-up and GIP functions. Water from the balance tank is used for GIP of the system.

Aseptic – Raw product from the balance tank is transported by a booster pump through the raw regenerator section where it is preheated by hot product in the sterile regenerator. The product then flows to the timing pump, which maintains a constant system flow rate. The raw product then enters the heater section where it is heated to processing temperatures. Product from the heater section flows through a holding tube then enters the sterile regenerator section where it is pre-cooled by raw product in the raw regenerator. From the sterile regenerator, product enters the cooler section and is cooled to packaging temperatures. From the cooler section the pasteurized product flows to a flow diversion device (special design valve manifold) which prevents improperly processed product from flowing to the filler and aseptic surge tank. Returned product is routed by a recycle valve to either the balance tank or to drain for start-up and GIP functions. Water from the balance tank is used for GIP of the system and for system sterilization prior to running product. During system sterilization, the raw section of the regenerator is by-passed to eliminate cooling of the flow on the sterile side of the system. Also, a return cooler (or optional closed loop system) allows the sterilization water to be recycled without flashing.