Two stage cooling has been added to the plate and tubular heat exchangers available on Armfield's miniature-scale FT74X UHT/HTST system enabling product outlet temperatures of less than 50C to be reached in conjunction with the Armfield FT63 laboratory chiller, particularly useful where cold product storage is required.

This and other improvements have made the FT74X an even more useful tool for developing formulations quickly and economically.

Static mixer elements for the tubular exchanger (FT74-20) improve heat transfer in both heating and cooling tubes reducing problems of burn-on with difficult products and allowing lower outlet temperatures to be achieved.

Both the plate and tubular heat exchangers enable monitoring of product pre-heat temperature.
The plate heat exchanger may be fitted with an homogeniser plate either upstream or downstream of the heating section enabling product to be directed to a homogeniser and returned during the heat treatment process.

The plate heat exchanger may also be fitted with additional plates in the heating section in order to deal with more demanding products.
A variable holding tube enables the user to configure a wide range of holding times to suit product processing parameters.

A magnetic flow meter enables very accurate measurement of product flow rate.
Feed pump is capable of variable speed operation in both high and low flow modes catering for CIP operations and pasteurisation at high flow as well as normal processing flow rates.