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Ethylene Oxide Gas Sterilizer

Ethylene Oxide (ETO) sterilizer is mainly used to sterilize medical & Surgical and pharmaceutical products & Food and Spices Products, Maize Starch Products.that cannot support conventional high temperature steam sterilization - such as devices that in company electronic components, plastic packaging or plastic containers. Normally the ETO used for gas sterilization is mixed with diluents such as carbon dioxide in different proportions from 10 % ETO to 90 % ETO. The commonly used gas concentration in the sterilizers is 450 to 1000 mg/lit of chamber volume (measured as pure ETO).

Features :
  • Single or double door With Sliding or Hinged door options to suit client specific requirements
  • Dimple Water Jacketed for better Uniformity of the heat Distribution. (Technology for fast Sterilization cycle and low cost operating)
  • Gas evaporation system is provided to ensure gaseous sterilant even at low temperature
  • Gas circulation system in place to achieve uniform concentration of ETO gas. This is imperative for chamber volumes above cubic meter
Operation:

Manually

  • Semi Auto control System
  • Fully Auto Control System
  • Sterilization Process Temperature and Relative Humidity Recorders
  • Fully Automatic PLC with PC Base Control with all Parameter recording and cycle graph Printing facility
  • Contamination Seal to prevent cross-flow of air between the clean and un-clean area
Technique:

Most ETO sterilization lines involve three different stages. These can be separated into three different cells depending on the size or amount of devices to treat:

  • Pre Conditioning
  • Sterilization
  • Degassing
Pre Conditioning Stage:

First, products need to go through a pre conditioning phase to make micro organisms grow. The batch load goes through a dwell time under a controlled environment of:

  • Temperature
  • Humidity
Sterilization Stage:

Then the load goes through a long and complex sterilization cycle. Requirements of such a system are:

  • Accurate temperature control
  • Availability of the control system
  • Accurate pressure and vacuum control
  • Easy displays of process phases
  • Dedicated customer recipes
  • Auto batching release through tolerance tests
  • Reporting
  • Security interlocks between actuators
  • Alarming
  • Shut down strategies

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Ethylene Oxide Gas Sterilizer

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