Abstract: The present disclosure relates to a method of controlling a steam sterilizer system comprising a boiler in which liquid water is turned into steam. Water is pumped from a container and the pumped water is passed through a degassing filter located upstream of the boiler in order to remove non-condensable gases (NCGs) dissolved in the water. The water is recirculated through the degassing filter for additional removal of NCGs, while water is prevented from flowing from the degassing filter to the boiler. Subsequently to recirculating the water through the degassing filter, at least a portion of the water is passed to the boiler. The present disclosure also relates to a control unit for performing the steps of the method, and to a steam sterilizing system comprising such a control unit.

Abstract: A sterilization apparatus for sterilization of objects. The apparatus includes a chamber for receiving the objects including a sterilization medium inlet and outlet; an inlet flow control device for controlling a supply of a sterilization medium to the chamber; a drain system for controllable discharge of fluid from the chamber; and a control unit configured to control the inlet flow control device and drain system. The drain system includes: a drain inlet connected to the sterilization medium outlet; a drain outlet connected to a vacuum system for evacuating the chamber; a first conduit connecting the drain inlet and outlet; and a proportional valve, arranged along the first conduit, controllable by the control unit to partly restrict fluid flow through the first conduit according. Drain valves may be controlled in response to the temperature of a flow of coolant, the coolant being used for cooling fluid via a heat exchanger.

Abstract: A sterilization apparatus for sterilization of objects. The apparatus includes a chamber for receiving the objects including a sterilization medium inlet and outlet; an inlet flow control device for controlling a supply of a sterilization medium to the chamber; a drain system for controllable discharge of fluid from the chamber; and a control unit configured to control the inlet flow control device and drain system. The drain system includes: a drain inlet connected to the sterilization medium outlet; a drain outlet connected to a vacuum system for evacuating the chamber; a first conduit connecting the drain inlet and outlet; and a proportional valve, arranged along the first conduit, controllable by the control unit to partly restrict fluid flow through the first conduit according. Drain valves may be controlled in response to the temperature of a flow of coolant, the coolant being used for cooling fluid via a heat exchanger.

Abstract: A sterilization apparatus is disclosed for sterilization of objects. The sterilization apparatus includes a chamber for receiving the objects, the chamber including a sterilization medium inlet and outlet; an inlet flow control device for controlling a supply of a sterilization medium to the chamber; a drain system for controllable discharge of fluid from the chamber; and a control unit configured to control the inlet flow control device and drain system in accordance with a sterilization scheme. The drain system includes: a drain inlet connected to the sterilization medium outlet; a drain outlet connected to a vacuum system for evacuating the chamber; a first conduit connecting the drain inlet and outlet; and a proportional valve, arranged along the first conduit, controllable by the control unit to partly restrict fluid flow through the first conduit according to a continuous relation between a control parameter and a valve opening of the proportional valve.

Abstract: The present invention relates to a ventilator autoclave comprising a chamber (1) with a space (5) for receiving goods (18) to be sterilized, at least one fan arrangement (2) for circulating steam and/or air in said chamber, and at least one first heat exchanger arrangement (11) for cooling and/or heating said steam and/or air, wherein said fan arrangement is arranged and configured to circulate said steam and/or air in said chamber (1), wherein said chamber (1) is configured such that said steam and/or air that is circulated in said chamber (1) follows a flow path passing at least a part of said first heat exchanger arrangement (11) before reaching said goods (18) to be sterilized, wherein said autoclave further comprises at least one second heat exchanger arrangement (19) that is provided upstream of said first heat exchanger arrangement (11) in said flow path, and wherein said second heat exchanger arrangement (19) is provided at such a distance from the periphery of said fan arrangement (2) that said flow

Abstract: A sterilization apparatus is disclosed for sterilization of objects. The sterilization apparatus includes a chamber for receiving the objects, the chamber including a sterilization medium inlet and outlet; an inlet flow control device for controlling a supply of a sterilization medium to the chamber; a drain system for controllable discharge of fluid from the chamber; and a control unit configured to control the inlet flow control device and drain system in accordance with a sterilization scheme. The drain system includes: a drain inlet connected to the sterilization medium outlet; a drain outlet connected to a vacuum system for evacuating the chamber; a first conduit connecting the drain inlet and outlet; and a proportional valve, arranged along the first conduit, controllable by the control unit to partly restrict fluid flow through the first conduit according to a continuous relation between a control parameter and a valve opening of the proportional valve.

Abstract: The present invention relates to a ventilator autoclave comprising a chamber (1) with a space (5) for receiving goods (18) to be sterilized, at least one fan arrangement (2) for circulating steam and/or air in said chamber, and at least one first heat exchanger arrangement (11) for cooling and/or heating said steam and/or air, wherein said fan arrangement is arranged and configured to circulate said steam and/or air in said chamber (1), wherein said chamber (1) is configured such that said steam and/or air that is circulated in said chamber (1) follows a flow path passing at least a part of said first heat exchanger arrangement (11) before reaching said goods (18) to be sterilized, wherein said autoclave further comprises at least one second heat exchanger arrangement (19) that is provided upstream of said first heat exchanger arrangement (11) in said flow path, and wherein said second heat exchanger arrangement (19) is provided at such a distance from the periphery of said fan arrangement (2) that said flow

Abstract: The present invention relates to a process (100) for sterilization of prefilled containers in an autoclave chamber (1) and comprises a sterilization phase (102) and a cooling phase (103). The sterilization phase (102) comprises sterilizing prefilled containers at a temperature in the range of from 105 to 140° C. during a time sufficient to sterilize the content of said containers. Furthermore, the present invention relates to an autoclave for use in a process for sterilization of prefilled containers.