The milk received from the raw milk unit first enters the tank balance. The control of the hot valve level inside the balance tank can be controlled both mechanically (with the help of a floater) and by using pneumatic valves and relevant precision instruments. The pasteurizer plate as the most important part of the device consists of 3 parts, heater, regenerator and air conditioner. Raw milk first enters the pasteurizer at 4C temperature from the Regeneration section and while regenerate the heat of pasteurized milk, it is heated to 60 ° C. Then at this temperature, the milk enters the heater section and while exchanging heat with hot water, it is heated to a temperature of 75 ~ 72 C °. The heated milk then passes through the holder to allow 16-20 seconds to eradicate the microorganisms, according to the Pasteur standard, such milk is now free of undesirable microorganisms. The pasteurized milk re-enters the heat recovery section and cools its inlet valve to about 14 ° C while preheating. In the last part, by passing through the cooler section and dissipating heat to the ice water flow, the milk is cooled to 4C temperature. Click on the below link to see complete information about dairy production lines.