Tetra Alfast®S2 Direct In-line standardization0 pages

Tetra Alfast®S2
Direct In-line standardisation

Tetra Alfast S2 is designed for automatic in-line standardisation of
the fat content in milk and cream direct after milk separation, for
standardised consumption milk.
Working principle
By continuously controlling the back pressure of the separator
cream outlet in a Cascade Control System, an accurate fat content
is achieved, regardless of variations in the raw milk fat content.
The raw milk is separated in the separator where the skim milk
pressure is kept constant by a constant pressure-modulating
valve. A mass flow transmitter measures the cream flow from the

separator and calculates the fat content. Another flow transmitter
measures the flow of standardised milk.
On receiving signals from the transmitters, the computer in the
control panel calculates the fat content, in relation to set points
and flow rates, and then transmits control signals to the cream flow
modulating valve, thereby controlling the fat content, whenever
required.
A surplus cream line is used for regulating the flow rate of remix
cream into the skim milk line, thereby standardising the milk