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EPC Products Education Educational Food Technology FT75 Laboratory Pasteuriser
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FT75 Laboratory Pasteuriser

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Description



The FT75 Laboratory Pasteuriser accurately reproduces in miniature the industrial high temperature, short time process (HTST). Nominal throughput is only 10 litres/hour. Although primarily designed for use with milk, other food liquids can be pasteurised providing that their solids content is not too high.

Pasteurising temperatures and holding times are easily adjusted, enabling the effectiveness of the product treatment to be investigated. When correctly operated, cleaned and sterilised the FT75 can produce a correctly treated and pasteurised product. However it is not intended that this apparatus be used to manufacture products for human consumption.

The HTST process involves heating the process liquid (milk) to a minimum temperature of 72°C, holding this temperature for 15 seconds and cooling to a storage temperature as quickly as possible.

The three-stage plate heat exchanger of the FT75 (fig. 1) achieves these parameters by (1) heating the process liquid with hot water prior to its entry into the holding tube and then by (3) cooling with cold water to storage temperature. An intermediate heat exchanger (2) transfers heat from the treated product to the feed liquid. This provides dual benefits in reducing the energy required to reach the pasteurising temperature and in reducing the cooling required. An optional Armfield CW17 Chilled Water Circulator is available. Full instrumentation and controls are provided to regulate heating water temperature and also feed pump speed, which in turn regulates holding time.

Optional computer linkage is available to control the process and to log production data.

A user instruction manual provides installation, commissioning and maintenance data together with project exercises. For secondary/high school use, a full set of worksheets and simple explanations is available on request.


Overall dimensions

Length

1.00m

Width

0.50m

Height

0.55m

Packed and crated shipping specifications

Volume

0.50m3

Gross weight

30Kg


Ordering  Specification

 A benchtop miniature high temperature, short time (HTST) system for the demonstration of the industrial pasteurisation process

 Includes a transparent feed tank, a feed pump, a three-stage heat exchanger, a holding tube, a divert system and a hot water circulator

 The feed pump is a peristaltic pump with a variable-speed control

 The heat exchanger is fully representative of large-scale industrial units

 It uses stainless steel heat transfer plates

 It can be dismantled for examination and cleaning

 It comprises three stages, a final heating stage, a regeneration stage and a cooling stage

 Holding time is 15s at 10 l/hr, in a stainless steel holding tube

 Process temperature is measured and controlled

 Hot water is circulated around the heating stage of the heat exchanger in a closed-loop system

 A PID controller is used to adjust the electric water heater, keeping the product process temperature at the requested value

 Optional data logger with USB interface is available



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Armfield,FT75,Laboratory Pasteuriser