Introduction:
With research and developmental efforts for newer products Machinfabrik
aims to cater to diverse and increasing requirements of the pharmaceutical
world. On such effort is the development of the ventilator autoclave designed
specially for the flexible products that cannot be sterilized with steam
since the pressure levels associated with steam can cause deformation
of the flexible loads.
Typical products like triple flip
off caps, blood bags, xylophone tubes etc. are few of the products successfully
sterilized in a ventilator autoclave. Though the medium can be effectively
sterilized with steam, a steam air mixture is use to cause pressure balancing
within the chamber and hence prevent any deformation. In order to prevent
any presence of cold spots (that can hamper the efficiency off the process)
a steam air mixture recirculation system is in place. The recirculation
system comprises of a centrally located impeller along with the heat exchangers
placed in the cylindrical chamber.
Technique:
A
ventilator is necessarily a cylindrical pressure vessel with heat exchangers
along the side curvature supported by inverted u shaped chamber construction
at the bottom of the ventilator.
A centrally places impeller along with the heat exchanger coils &
the chamber baffle at the bottom comprise the recirculation system. This
ensures high flow velocity of steam air mixture during the heating period
and the desired temperature attainment and uniformity for sterilization
purpose is thereby attained.
Recirculation of the steam air mixture also causes necessary pressure
balancing thereby preventing any deformation of the flexible load.
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Features:
1.Complaince with USFDA & EN 285 standards.
2.Post sterilization cooling water is circulated in the heat exchanger
coil to cool down the load to room temperature before it can be unloaded
3.The heat exchangers are constructed as per the FINN tube design. This
ensures maximum heat transfer and thereby temperature uniformity of the
steam air mixture passing over it.
4.The impeller is provided with a mechanical seal to prevent any leakage
5.Safety valve are provided for the chamber and heat exchangers coils
to prevent over pressure conditions.
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Applications:
Sterilization of :
Pre filled syringes
Dental cartridges
Triple flip off caps
Over wrapped pouches
Blood bags
Terminal sterilization of large volume parenterals in any type of containers.
Optional Features:
A cooling water tank with a circulating pump for
cooling the mechanical seal of the main impeller.
To ensure sterile air is introduced into the chamber via sterile air filter
arrangement with housing (99.9 % retention) can also be provided.
