HTST – Pasteurizers HTST

Pasteurization is a process of food preservation in which packaged and non-packaged foods (such as milk and fruit juices) are treated with mild heat, to eliminate pathogens and extend shelf life. The process is intended to destroy or deactivate microorganisms and enzymes that contribute to food spoilage or risk of disease, including vegetative bacteria.

H.T.S.T. pasteurization means High Temperature for a Short Time.

The heat exchange process takes place on the continuous flow of product, which is heated to the required heating temperature, for a standstill time, then to the required outlet temperature.

The HTST pasteurizer is equipped with several controls to ensure the effectiveness of the treatment, record the preliminary process of sanitization, preparation, start and end of product treatment and washing of the machinery.

The operator can set the pasteurizer in 5 stages using panel buttons, these are: sanitization, preparation, production, production end and washing.

The washing configuration provides a flow increase, temperatures change and timed switching of the pneumatic valves to ensure an effective cleaning. The washing cycle can be managed by a remote C.I.P. plant, allowing it to be implemented on existing lines without making major changes to the production plant.

Standard components
Constant level tank
Sanitary centrifugal flow pump mod. FCA managed by a frequency inverter drive
Plate heat exchanger mod. PHEX FDB with hot/cold heat recovery
Automatic unit for temperatures regulation
Unit for flow, back-pressure and differential pressure regulation
Sanitary centrifugal booster/timing pump mod. FCA (when required)
Heated product holding tube
Automatic unit for hot water with centrifugal pump and proportional valve
Unit for cooling with water
Unit for potable water loading
Command and control board with digital recorder
Pneumatics board
Stainless steel skid with height-adjustable feet

Model 

Max Temperature [°C]

All models +95
(higher on request)
ModelFlow rate [L/h]

Installed power [kW]

HTST300/900300 – 900 
HTST1000/25001.000 – 2.500 
HTST3000/40003.000 – 4.000 
HTST4500/55004.500 – 5.500 
HTST6000/100006.000 – 10.000 
HTST11000/1850011.000 – 18.500 
HTST19000/2750019.000 – 27.500 
HTST28000/3900028.000 – 39.000 

Model #########

Semi-Automatic light ############

Semi-Automatic ###########

Automatic ###########

Full-Automatic ###########

Control for the remote loading pumpPower line, optional

Dry signals, 

Power line, optional

Dry signals, 

Power line, optional

Power line with inverter, optional

Dry signals,

Power line, optional

Power line with inverter, optional

Level on balance tank Float-ball inlet with flow adjusting butterfly valve

Float-ball inlet with flow adjusting butterfly valve.

Min/max level probe

Min/max level probe and pneumatic valve, optional

Continuous level probe and pneumatic valve, optional

Continuous level probe and pneumatic valveContinuous level probe and pneumatic valve
Control of flow pump

With inverter and visual flow-meter

Pump speed change on cycle switch

With inverter and visual flow-meter

Pump speed change on cycle switch

With inverter and digital flow-meter for automatic flow, optional

With inverter and digital flow meter for automatic flowWith inverter and digital flow meter for automatic flow
Differential pressure and back-pressure controlWith pressure probes and flow adjusting butterfly valve

With pressure probles and pressure adjusting butterfly valve

With pressure probes and proportional valve, optional

With pressure probes and proportional valveWith pressure probes and proportional valve
Heating temperature controlAutomatic, with indirect exchange water/productAutomatic, with indirect exchange water/productAutomatic, with indirect exchange water/productAutomatic, with indirect exchange water/product

Outlet temperature control

Manual adjusting on thermometer

Automatic with proportional valve on temperature probe

Automatic with proportional valve on temperature probeAutomatic with proportional valve on temperature probe
Potable water controlManual loading

Manual loading

Automatic loading on cycle switch, optional

Automatic loading on cycle switchAutomatic loading on cycle switch
Command and control board, automation

Digital recorder

PID controllers

Phase switch: sanitization, production, washing,

Digital recorder

PID controllers

PLC

Internet remote assistance, optional

Basic data exchange, and basic remote management, optional

Phase switch: sanitization, preparation (optional), production, end_production (optional), washing

Digital recorder

PID controllers

PLC and HMI touch panel

Internet remote assistance

Db data exchange and remote management, optional

Phase switch: sanitization, preparation, production, end_production, washing

Pneumatic valves with control unit, optional

Digital recorder

PID software

PLC and HMI touch panel

Internet remote assistance

Db data exchange, remote management systems and integration with factory supervisor for Industry 4.0

Phase switch: sanitization, preparation, production, end_production, washing

Pneumatic valves with control unit

Optional components
Heated product holding pipe for two or more holding times 
Unit for heat recovery adjusting to obtain a constant temperature to centrifugal separator or to degasser or to homogenizer
Unit for product pre-cooling with tower water/well water
Unit for product cooling or post-heating on outlet (cold outlet / hot outlet)

Unit for product cooling, post-heating, super hot post-heating on outlet (cold outlet / hot outlet / super hot post-heating, up to pasteurization temperature)

Heating by indirect exchanger water/product, with built-in electrical hot water boiler (Max temperature +85°C)
Heating by indirect exchange steam/water/product, with self-operated pressure reducer and brazed plate heat exchanger
Heating by indirect exchange steam/water/product, with built-in electrical steam generator
Shell and multi-tubes heat exchanger mod THEX FDB for high pasteurization temperature
Connection line for centrifugal separator
Connection line for degasser
Connection line for high pressure homogenizer
Automatic C.I.P. washing unit, built-in
Perimeter structure with housed the connections

Optional equipment
Self-cleaning centrifugal separator
Vacuum degasser DEGA FDB
High pressure homogenizer
Electrical hot water boiler, stand-alone
Electrical steam generator, stand-alone
Hot water heating unit by steam, stand-alone
Automatic Cleaning In Place C.I.P. unit CIPP FDB, stand-alone