OPERATION :

The Product is loaded in the sterilizer on specially designed loading carriages. Process water (usually de-ionized water) is filled in the chamber up to a predetermined level. The water is drawn by a sanitary construction centrifugal Pump, passed through the heat exchanger and sprayed over the load. A distribution network and spray manifold ensures a very uniform spray over the product (load). During the heating phase of the process externally generated steam is supplied to the heat exchanger. This Steam heats the process water flowing on the secondary side of the heat exchanger. The temperature of the product is gradually increased from ambient to the sterilization temperature. The heating rate is settable over different temperature range to minimize the thermal shock to the product. During the heating phase the air compensation system is also operational. This system maintains the chamber pressure at pre-determined levels over the temperature range, thereby ensuring minimal pressure difference between the chamber and the container. This pressure balancing action continues throughout the process. After attainment of the sterilization temperature the Sterilization timer starts. The sterilization temperature is maintained, for a settable duration, by automatic regulation of incoming steam supply. During the cooling phase the steam supply to the heat exchanger is switched off and cooling water supply is switched on. The product is then cooled at a settable rate to the unloading temperature. At the end of the process the load is unloaded. The process water, if required, can be reused.

SALIENT FEATURES:

EXCELLENT HEAT TRANSFER:
INTERTECH SHWS Sterilizers the uniform water shower over the product ensures that a uniform temperature distribution is maintained throughout the chamber during the sterilization phase. Moreover since the water comes into physical contact with the product the heat transfer is more efficient and the process efficiency is not affected by air pockets, a problem common with steam.

SUPERIOR CLOSED LOOP SYSTEM:
The SHWS Sterilization process uses a closed loop system for the process water. The main advantage is that the water becomes sterilized during the process and hence presents no hazard to the product. This ensures compliance to regulations for cooling sealed containers during sterilization.

PRESSURE COMPENSATION SYSTEM:
Steam Sterilizers have a serious drawback when sterilizing flexible containers. The constant temperature-pressure relationship in these systems result is the flexible containers collapsing or bursting during the process.
INTERTECH SHWS Sterilizers the temperature and pressure can be independently controlled depending on container material, size and the liquid being sterilized.

PROCESS MANAGEMENT SYSTEM:
The SHWS Sterilizers are provided with microprocessor controlled system. This also comprises of a operator terminal and printer. The system is provided with 10 user defined programs. More versatile computer controlled system are also available on request.