Working with Turbopumps

Working with Turbopumps Introduction to high and ultra high vacuum production Working with Turbopumps Foreword Empty space, meaning a volume not filled The content of this brochure is orientated with air or any other gas is referred to as to the most important questions that arise a vacuum . Ideal vacuum conditions exist concerning the generation of vacuum : in interstellar space. In interstellar space What terminology is used in vacuum there is a particle density of one atom technology and how is it defined? per cm3. In a laboratory or in industry, a (Chapter 1). vacuum is created using various vacuum pumps . Different requirements pertaining How does a turbopump function? to the quality of the vacuum are placed on (Chapter 2). the vacuum depending on the application. What are the various types of turbo- For this reason, vacuum applications pumps and what are the differences? are divided into the following categories: (Chapter 2).

the fore-vacuum pressure, is the pressure on the fore-vacuum side of the turbo-pump. A turbopump cannot expel against atmosphere and requires, therefore, a vacuum on the exhaust side (the fore-vacuum) which, depending on type, must be between 0.01 and 20 mbar. Diaphragm pumps, oil-sealed rotary vane pumps, Roots pumps or other dry backing pumps

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  Pumps, Evans, Vacuum, Rotary, Rotary vane pumps

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